Appendix D: Modbus Registers

Format of Parameters Presentation in MODBUS Registers

Parameter	Range of Values	Description	Number of Occupied Registers
Number	0 – 65535	Whole number (16 bit) in standard range of MODBUS register values	1
Number	-32768 – +32767	Whole number (16 bit) in additional arithmetic	1
Number	0 – 4294967295 in two registers, upper part – the first one	Whole number, which value can exceed the limit for MODBUS register (65535)	2
Number	-2147483648 – +2147483647 in two registers, the upper part is the first	An integer (32 bits) in complement arithmetic	2
Line of symbols	In each register, a number from 0 to 255 – ASCII-code of symbol or 0 (the end of line)	A set of values every of which is equal to symbol code in ASCII encoding. If the line is shorter than the maximal length then after the last symbol there should be code 0	Max. length of line for the parameter
IP-address (IP-mask)	In every register – one byte (0 – 255)	Set of four bytes of address IPv4, from left to right	4
MAC-address	In every register – one byte (0 – 255)	Set of six bytes of address MAC-48, from left to right	6

Parameter Groups Available via MODBUS Protocol

Group	Description	Access	Address
Device description	Parameters are listed in Device Describing Parameters table	Any mode, only reading	0 – 3
Current mode	Parameters are listed in Current Mode Parameters table. Password entry is available in any mode, command entry - only in setup mode (after password entry)	Depending on the mode	100 – 120
Current status	Parameters are listed in Current Status Parameters table	Any mode, only reading	121 – 295, 900 – 944, 5000 – 5249
Changeable settings	The parameters listed in Settings Parameters table that can be changed and activated	Only in mode of setting, for reading or writing	300 – 829, 5250 – 5499
Active settings	The settings being used by the device at the moment	In any mode, only reading	2300 – 2829, 5500 – 5749
Saved settings	The set is saved regardless the power of the EM-486 and is used at starting of the device	Only in mode of setting, only reading	3300 – 3829, 5750 – 5999
Clock setting	See Clock Setting Parameters table	Only in clock setting mode, for reading or writing	34817 – 34825

Device Describing Parameters

Parameter	Description	Address
Type of device	The code defining the instrument MODBUS at the manufacturer (15 – EM-486)	0
Program version	Program version of integrated firmware of the device	1
Control code	CRC32 of the device program integrated firmware	2 – 3

Current Mode Parameters

Parameter	Range of Values	Initial Value	Description	Address
Password enter	Line of symbols	0	At entering the actual password, the client receives the appropriate access (see the registers 710-749). At entering the empty line, the rights of client are reset to level at the moment of connection	100 – 119
Command of control	0 – 40959, Writing in mode of setting	0	See Control Commands table	120

Control Commands (Register 120)

Value	Command	Description
0	No activity	-
1	Restart	Restart of the device
2	Save	Save the changes of settings via MODBUS
3	Apply	Apply the settings without restart (It is only available for MODBUS, relays, transducers and user parameters)
4	Save and apply	Similarly to commands 2 and 3
6	Export	Read the saved settings and write them to a file on the memory card (see Appendix E)
7	Import	Read settings from a file on a memory card and save them
9	Cancel	To read the saved settings
21	Deactivate relay K1	Switch the relay K1 in normal state until the next command on relay or until reset of the device
22	Deactivate relay K2	See command 21
23	Deactivate relay K3	See command 21
29	Deactivate all relays	Switch all relays in normal state until the next command on relays or until reset of the device
31	Activate relay K1	Switch relay K1 in active state until the next command on relay or until reset of the device
32	Activate relay K2	See command 31
33	Activate relay K3	See command 31
39	Activate all relays	Switch all relays in active state until the next command on relay or until reset of the device
41	Control of relay K1	Switch relay K1 to automatic control (normal state before the events which are programmed for switching this relay) until the next command on relay or until reset of the device
42	Control of relay K2	See command 41
43	Control of relay K3	See command 41
49	Control of all relays	Switch all relays to automatic control (normal state before the events which are programmed for switching these relays) until the next command on relay or until reset of the device
51	Apply for MODBUS	Apply the settings via MODBUS and RS-485
54	Apply for input	Apply the settings at inputs sensors
55	Apply for output	Apply the settings at the output of loading relays
59	Apply for user	Apply the settings for the user area of registers
61	Reset saved pulse counter at input 1	Before sending this command, you should open the access to change the saved counters (see command 13785)
62	Reset saved pulse counter at input 2	See 61
63	Reset saved pulse counter at input 3	See 61
64	Reset saved pulse counter at input 4	See 61
81	Synchronize clock with NTC server	-
82	Obtain account balance from GSM operator	-
161	Test SMS	Send a SMS test to the number of the main subscriber
10637	Back to Factory Settings	Reset the settings to the factory settings
13785	Start changing the stored pulse counters	It should be sent every time before usage of commands 61 – 64
35381	Start setting the clock	It allows access to the registers of clock setting 61 – 64
35431	Cancel setting the clock	It allows access to the registers of clock setting
40959	Clear the internal memory of the tasks	To erase the program for logic of actions (when the memory card is inserted, it will automatically read again)

Current Status Parameters

Parameter	Description	Address
Mode (see details for reg. 122)	0: User’s mode; 1: Mode of setting	121
Tabs of access	See Access Flags table below	122
Time, min	Number of minutes since the moment of start-up	123 – 124
Number of MODBUS TCP clients	Number of occupied connections of MODBUS TCP	125
Limit of MODBUS TCP clients	Total number of possible connections via MODBUS TCP	126
Load of RS-485, inquiries/s	Number of inquires sent via RS-485 per second	127
Working load of RS-485, inquiries/s	Number of replies without errors via RS-485 per second	128
Load of RS-485 per second, %	Loading of RS-485 for the last second, with taking into account set rate of RS-485 and time of inactivity	129
Load of RS-485 per minute, %	Loading of RS-485 for the last minute	130
Load of RS-485 per 5 minutes, %	Loading of RS-485 for the last five minutes	131
Load of MODBUS TCP, inquiries/s	Number of inquiries received from the clients via MODBUS TCP per second	132
Useful load of MODBUS TCP, inquiries/s	Number of replies without errors being sent to the clients via MODBUS TCP per second	133
Load of GSM, kB/s	Wireless channel load channel with GSM being switched on	134
Load of Ethernet, ×100 kB/s	Loading of wire channel with Ethernet being switched on	135
Max. clients of MODBUS TCP	Maximal number of simultaneously connected clients via MODBUS TCP – from the moment of start up	136
Max. load of MODBUS TCP, inquiries/s	Maximal number of inquiries received per second from the clients via MODBUS TCP – from the moment of start up	137
Max. load of RS-485, %	Maximal loading of RS-485 for 5 minutes – from the moment of start up	138
Max. load of GSM, kB/s	Maximal loading of GPRS – from the moment of start up	139
Current IP-address of Ethernet	IP-address, by which the device is available in Ethernet network	140 – 143
Current MAC-address of Ethernet	MAC-address, by which the device is detected in Ethernet network	144 – 149
State of universal input 1	The readings of gauge connected to input 1, depending on the type of gauge (see register 580): for the gauges with analogue output – the value of gauge output in mV or in µA (depending on the type of gauge); for discrete breakers – 0 at open contacts, 1 at closed contacts; for temperature gauges – the measured value of temperature, 32767 – at gauge cut off, -32768 – at gauge short circuit	150
The effective value of input 1 state	The gauge readings at the input 1 given as to the user scale, in accordance to the settings (see registers 766 – 767)	151
State of universal input 2	The readings of the gauge connected to input 2	152
The effective value of input 2 state	The gauge readings at the input 2 given as to the user scale, in accordance to the settings	153
State of universal input 3	The readings of the gauge connected to input 3	154
The effective value of input 3 state	The gauge readings at the input 3 given as to the user scale, in accordance to the settings	155
State of universal input 4	The readings of the gauge connected to input 4	156
The effective value of input 4 state	The gauge readings at the input 4 given as to the user scale, in accordance to the settings	157
State of relay output 1	0 – relay off, 1 – relay on	160
State of relay output 2	0 – relay off, 1 – relay on	161
State of relay output 3	0 – relay off, 1 – relay on	162
Time before connection to remote server, s	0: there is a connection to server of data accumulation; 1: The connection is being made to the server of data accumulation; 2 – 65534: number of seconds before the repeated connection; 65535: connection to server is not used	165
Number of planned restarts	Number of restarts in accordance to the user setting – for total operational time of the device	166
Number of critical errors	Number of noted errors (failures) causing the restart of the device – for total operational time of the device	167
Operation time of device, min	Number of minutes of device operation – for total operational time of the device	168 – 169
Current time, s	Number of seconds since 1st of January of specified year (see reg. 172)	170 – 171
Year of time count	Year, since 1st of January which is taken for time count	172
Time zone, min	Time zone, for the time count, number of minutes with sign as to UTC+00	173
Temperature, °C	Device internal temperature	174
Power voltage, mV	Bus voltage 12 V (voltage at the output of the internal power source or at inlet of backup power, depending on which the voltage is higher)	175
Time before connection to the first remote server MODBUS TCP	0 – there is a connection to remote server; 1 – the connection is being made to remote server; 2 – 65534: number of seconds before the repeated connection; 65535: connection to server is not used	176
Interface connection to the first remote server MODBUS TCP	0 – there is no connection; 1 – there is a connection by Ethernet; 2 – there is a connection to GPRS	177
Adding daylight saving time, min	Current adding daylight saving time	178
Relay control state	See Relay Control State Flags table	179
Pulse counter at input 1	Number of pulses at input 1 after starting	200 – 201
Pulse counter at input 2	Number of pulses at input 2 after starting	202 – 203
Pulse counter at input 3	Number of pulses at input 3 after starting	204 – 205
Pulse counter at input 4	Number of pulses at input 4 after starting	206 – 207
Year (current time)	Current year	210
Month (current time)	Current month	211
Day of the month (current time)	Current day of the month	212
Hour (current time)	Current hour	213
Minute (current time)	Current minute	214
Second (current time)	Current second	215
Day of week (current time)	Current day of week (1 – Monday)	216
Month (winter time)	Current month, excluding summer time	217
Day of the month (winter time)	Current day of the month, excluding summer time	218
Hour (winter time)	Current hour, excluding summer time	219
Filter of the value of input 1	Last change of register 150 with a delay of 5 seconds	220
Filter of the reduced value of input 1	Last change of register 151 with a delay of 5 seconds	221
Filter of the value of input 2	Last change of register 152 with a delay of 5 seconds	222
Filter of the reduced value of input 2	Last change of register 153 with a delay of 5 seconds	223
Filter of the value of input 3	Last change of register 154 with a delay of 5 seconds	224
Filter of the reduced value of input 3	Last change of register 155 with a delay of 5 seconds	225
Filter of the value of input 4	Last change of register 156 with a delay of 5 seconds	226
Filter of the reduced value of input 4	Last change of register 157 with a delay of 5 seconds	227
The time of day, s	Number of seconds from midnight of the current day	230 – 231
The time of sunrise, s	0 – 86399: Number of seconds from midnight to sunrise; 86400: Sunrise is not observed in this day	232 – 233
The time of sunset, s	-1: Sunset is not observed in this day; 0 – 86399: Number of seconds from midnight to sunset	234 – 235
Time of day, ms	Number of ms from midnight of the current day	236 – 237
Memory card occupancy, 0.01%	10000 – memory card is missing or full	238
Estimated time spent on 1% of the memory card, days	0 – less than one day; 1 – 9999 – days for 1% of the memory card capacity; 10000 – more than 10000 days; 65535 – unknown	239
Time before connecting to the second remote MODBUS TCP server, s	0 – a connection to a remote server has been established; 1 – connecting to a remote server; 2 – 65534: number of seconds before reconnecting; 65535: Connection to MODBUS TCP server is not in use	240
Interface for connecting to a second remote MODBUS TCP server	0 – connection not established; 1 – an Ethernet connection is established; 2 – the GPRS connection is established	241
Connection time to the third remote MODBUS TCP server, s	0 – a connection to a remote server has been established; 1 – connecting to a remote server; 2 – 65534: number of seconds before reconnecting; 65535: Connection to MODBUS TCP server is not in use	242
Connection interface to a third remote MODBUS TCP server	0 – connection not established; 1 – an Ethernet connection is established; 2 – the GPRS connection is established	243
Stored pulse counter at input 1	The number of pulses at input 1 during the operation of the memory card	250 – 251
Stored pulse counter at input 2	The number of pulses at input 2 during the operation of the memory card	252 – 253
Stored pulse counter at input 3	The number of pulses at input 3 during the operation of the memory card	254 – 255
Stored pulse counter at input 4	The number of pulses at input 4 during the operation of the memory card	256 – 257
The stored pulse counter at input 1 (battery)	Number of pulses at input 1 during operation of built-in battery of the clock	270 – 271
The stored pulse counter at input 2 (battery)	Number of pulses at input 2 during operation of built-in battery of the clock	272 – 273
The stored pulse counter at input 3 (battery)	Number of pulses at input 3 during operation of built-in battery of the clock	274 – 275
The stored pulse counter at input 4 (battery)	Number of pulses at input 4 during operation of built-in battery of the clock	276 – 277
Operating time of the relay 1, sec (battery)	Time in seconds during which the relay 1 is turned on (during operation of the built-in battery)	280 – 281
Operating time of the relay 2, sec (battery)	Time in seconds during which the relay 2 is turned on (during operation of the built-in battery)	282 – 283
Operating time of the relay 3, sec (battery)	Time in seconds during which the relay 3 is turned on (during operation of the built-in battery)	284 – 285
Switching-off counter of relay 1 (battery)	Switching-off number of relay 1 (during operation of the battery)	290 – 291
Switching-off counter of relay 2 (battery)	Switching-off number of relay 2 (during operation of the battery)	292 – 293
Switching-off counter of relay 3 (battery)	Switching-off number of relay 3 (during operation of the battery)	294 – 295
Current IP-address of GSM	IP-address obtained from GSM provider	900 – 903
GSM signal level, %	Signal level and quality of radio communication with GSM provider	915
The type of battery connection	Type of hardware connection of the built-in battery power (battery for real time clock): 0 – the battery powers the clock in the central controller - memory of statistics (registers 270 – 299, 5240 – 5249); 1 – the battery powers the clock in GSM module, the memory of statistics is reset to zero when power is off	927
SIM card account status	The account status received for the last USSD query (sent automatically once a day); the first number in the operator’s response is taken as an account. -2147483648 – account status is unknown	932 – 933
Time for receiving the SIM card account status value	Number of seconds since January 1 of specified year (see reg. 172). 0 – account status was not received	934 – 935
Memory card capacity, kB	0 - no card or unformatted in FAT / FAT32	941 – 942
The amount of data that has not been written to the memory card since the start, bytes	0 - there was no data record losses; 4294967295 - more than 4 GB losses	943 – 944
User parameters of status	User parameters of status after starting take a value of 0. They can be used for storage and transmission to the server of tasks of values to be measured and calculated in the files, and noted events	5000 – 5239
User parameters of statistics (battery)	They store the value for the operating time of the built-in battery for the clock. They can be used in the task files for statistics gathering or saving state	5240 – 5249

Access Flags (Register 122)

Bit	Description
0	Possibility for the connected client to obtain permission (using a password) for requests for the functions of reading devices via RS-485: 0 - permission cannot be obtained; 1 - permission can be obtained by password
1	Allowing the connected client to request functions of reading devices via RS-485: 0 - no permission; 1 - permission is available
2	The ability for the connected client to obtain permission (using a password) to request recording functions and control devices via RS-485: 0 - permission cannot be obtained; 1 - permission can be obtained by password
3	Allowing the connected client to request recording and device control functions via RS-485: 0 - no permission; 1 - permission is available
4	The ability for the connected client to obtain permission (using a password) to access the EM-486 registers, except for the version registers, password, mode and access flags: 0 - permission cannot be obtained; 1 - permission can be obtained by password
5	The ability for the connected client to obtain permission (using a password) to access the EM-486 registers, except for the version registers, password, mode and access flags: 0 - permission cannot be obtained; 1 - permission can be obtained by password
7	Permission to the connected client to configure EM-486 (similar to register 121): 0 - no permission; 1 - permission is available
9	Client has an authority for connection (always is read as «1» after connection)
12	Allowing the connected client to set the clock: 0 - no permission; 1 - permission is available

Relay Control State Flags (Register 179)

Bit	Description
0	Indication of relay K1 ON (independent of reg. 575)
1	Indication of relay K2 ON (independent of reg. 576)
2	Indication of relay K3 ON (independent of reg. 577)
4	0 - Relay K1 in automatic mode (bit 12); 1 - Relay K1 in manual mode (depends on bit 8)
5	0 - Relay K2 in automatic mode (bit 13); 1 - Relay K2 in manual mode (depends on bit 9)
6	0 - Relay K3 in automatic mode (bit 14); 1 - Relay K3 in manual mode (depends on bit 10)
8	Manual command for K1 relay to switch on
9	Manual command for K2 relay to switch on
10	Manual command for K3 relay to switch on
12	Automatic command for K1 relay to switch on
13	Automatic command for K2 relay to switch on
14	Automatic command for K3 relay to switch on

Device Settings Parameters

Ethernet Network

Parameter	Range of Values	Factory Value	Description	Address
Static IP-address	IP-address	192.168.0.111	If dynamic addressing is disabled or not available, the value of the IP address in the Ethernet	300 – 303
Sub network mask	IP-mask	255.255.255.0	It is used only with a static IP-address	304 – 307
Gateway	IP-address	192.168.0.1	It is used only with a static IP-address, or as IP filter for DHCP-server	308 – 311
Switch on the dynamic addressing with a help of DHCP	0 – 1	1	0: preset IP-address, mask and gateway is used for addressing in Ethernet. 1: If the DHCP server is available in the network, then the IP address, mask and gateway are received from the server	312
Switch on the filter of IP-address of DHCP-server	0 – 1	0	Used if dynamic addressing is enabled. 0: device receives addressing data from the first DHCP-server to respond; 1: device receives addressing data only from DHCP-server with IP-address of the gateway	313
Switch on the use of server DNS of gateway	0 – 1	1	It is used if DHCP is not available (switched off). 0: DNS of gateway is not used; 1: To determine the IP addresses of other servers, if they are specified by host names	314
IP-address of the first DNS server	IP-address	8.8.8.8	Used if DHCP is not available (disabled). 0.0.0.0 - not used	315 – 318
Second DNS server IP address	IP-address	0.0.0.0	It is used if DHCP is not available (switched off). 0.0.0.0 – not used	319 – 322
Enable MAC address override	0 – 1	0	0: unique value for every device, stored in the memory shall be used as a MAC-address; 1: manually set MAC-address is used	323
Manually specified MAC-address of Ethernet	MAC-address	Unique for each device	Used if manually set MAC-address is enabled for the authentication of device in the Ethernet network Ethernet	324 – 329

GSM Network

Parameter	Range of Values	Factory Value	Description	Address
Pin code of SIM-card	0 – 65535	65535	0 – 9999: this code is used for the SIM card if it demands the PIN code. Other values: the code isn’t used, SIM card and GSM are unavailable if the card demand a code	330
Switch on the automatic definition of APN and USSD query of GSM operator	0 – 1	1	0: device makes GPRS connection by manually set APN parameters, to receive the status of the account, a USSD query is sent manually; 1: APN and USSD account status query are automatically determined for the operator according to ICCID code of SIM card	331
Activate GPRS in roaming	0 – 1	1	0: GPRS is blocked in roaming; 1: GPRS may be used in roaming	332
Activate SMS messages sending in roaming	0 – 1	0	0: SMS messages cannot be sent (but can be received) in roaming; 1: SMS messages can be received and sent in roaming	333
MODBUS TCP connection port via GSM	0 – 65535	0	It is used for external connection to the device via GSM with static IP, for exchange using MODBUS TCP protocol. 0 – It is disabled	334
USSD query to receive an account	Line of symbols	-	It is provided by GSM service provider; up to 12 characters. There cannot be any spaces in a string	340 – 351
APN log-in of GPRS service	Line of symbols	-	Specified by provider of GSM service. Up to 40 symbols	352 – 391
APN password of GPRS service	Line of symbols	-	Specified by provider of GSM service. Up to 24 symbols	392 – 415
APN address of host	Line of symbols	-	Specified by provider of GSM service. Up to 34 symbols. In line there should not be any spaces	416 – 449

MODBUS TCP Clients

Parameter	Range of Values	Factory Value	Description	Address
Connection port via MODBUS TCP	1 – 65535	502	Used at external connection to the device for exchange via MODBUS TCP protocol	450
Disable inactive clients	0 – 1	1	0 - MODBUS TCP connection is supported regardless of the time between requests from the client; 1 - disconnect clients that have not received requests for longer than a specified time	451
Max. reply waiting time, s	0 – 600000	90	Used if disable inactive clients is selected	452 – 453
Enable the order for the last made connection via MODBUS TCP	0 – 1	0	0: connection via MODBUS TCP is supported regardless of connection holding time; 1: If all connections via MODBUS TCP are used, a new client inquiring for connection can be connected instead of the last connected client, if the time of connection holding on is more than the specified time	454
Max. time of last connection holding via MODBUS TCP, ms	0 – 600000	60000	Used if the order for the last connection via MODBUS TCP is enabled	455 – 456

MODBUS Network

Parameter	Range of Values	Factory Value	Description	Address
Native MODBUS-identifier of the device	0 – 247	111	0: device forwards all MODBUS TCP requests into the MODBUS network, device registers via MODBUS TCP are unavailable; 1–247: devices respond to MODBUS TCP requests bearing the given MODBUS-identifier without forwarding them to the MODBUS network	457
Bit rate via RS-485, bit/sec	75 – 921600	9600	Used in case of data exchange between the devices via RS-485, the same value for the devices on the same bus-bar	458 – 459
Activate selection of byte format when transmitting via RS-485	0 – 1	1	Used in case of data exchange between the devices via RS-485, the same value for all devices on the same bus-bar. 0: unused, byte is completed with 2 stop bits; 1: Byte format is selected in register 461	460
Byte format when transmitting via RS-485	0 – 5	5	Is used for exchange with devices via RS-485 only if byte format selection is activated. The value for devices on the same bus-bar. 0: even (“EVEN”) – 1 parity bit and 1 stop bit; 1: odd (“ODD”) – 1 parity bit and 1 stop bit; 2: «0» (“SPACE”) – 1 zero bit and 1 stop bit; 3: «1» (“MARK”) – 1 device bit and 1 stop bit (similar to mode with two stop-bits); 4: “ABSENT” – no parity bit, 1 stop bit; 5: “AUTO-STOP” – no parity bit, 2 stop bits in the outcoming bytes, 1 stop bit in the incoming bytes; in such a case, devices with one and two stop bits may be connected simultaneously	461
Response time from MODBUS RTU, ms	0 – 60000	200	Used in case of data transfer via RS-485 in RTU mode. Waiting for a response is terminated if the first byte of the response has not been received within the given time after sending the request. The response is always expected longer than time of silence between frames (time of silence depends on the bit rate and shall be equal to the time required for transmitting 3.5 bytes, or 1.75 msec for bit rate over 19200 bits/sec)	462
Enable ASCII exchange via RS-485	0 – 1	0	Exchange mode via RS-485, the same value for all devices on the same bus-bar. 0: RTU exchange mode (format: 1start bit, 8 data bits, 2 stop-bits, parity bit, and stop bit or only 1 stop bit – total from 10 to11 bits); 1: ASCII exchange mode (format: 1start bit, 7data bits, 2 stop-bits or parity bit or stop bit – total 10 bits). The non-standard byte forms 4 (register 461, values 4 and 5) are not accessible; format 3 (2 stop bits) is used instead	463
Response time for subsequent MODBUS ASCII character, ms	0 – 60000	1000	Used in case of data transfer via RS-485 in ASCII mode. Waiting for a response is terminated if the subsequent byte of the response has not been received within the given time, as indicated for the reception of response. Waiting time shall not be less than time required for transmission of a single character (depending on the bit rate)	464

Connection to Data Accumulation Server

Parameter	Range of Values	Factory Value	Description	Address
Mode of connection to the server for data accumulation	0 – 4	1	0: connection to server is not used; 1: the device makes and holds the connection to the server via the specified connection port (port on the North side); 2: passive mode, waiting for a connection from the server through the specified server connection port (port on the EM-486 side); 3: similar 1, but only via Ethernet; 4: similar 1, but only via GPRS	465
Server connection port	0 – 65535	20502	Inquiry port to which is addressed a side making a connection between a device and a server (see reg. 465)	466
Time of waiting for a reply from the server, sec	0 – 3600	120	0: the server silence time is not limited; 1–3600: max. time of server silence after which the connection will be broken and must be remade again	467
Time of waiting before the second connection to the server, s	0 – 30000	15	Connection to the server of data accumulating (used in except the mode «2»). After the connection with the server is lost, the reconnection will be made after a specified waiting time (after starting the device, the first connection is made after a fixed time - 5 s)	468
Enable the server address by a text line	0 – 1	1	Used in connection to accumulating server (in except the mode «2»). 0: the connection is made to the server with a fixed IP-address set in the registers 470 – 473; 1: connection is made to the server with a name set in the registers 474 – 509	469
Data collection server IP address	IP-address	0.0.0.0	Used in connection to the server (in except the mode «2») if the setting of server address is not activated by a text line. IP-address of remote server which supports the connection	470 – 473
Data collection server address	Symbols line	modbus.overvis.com	Used in connection to the server (in except the mode «2») if the setting of server address is activated by a text line. Remote server address which supports the connection. As an address there can be a line with length up to 36 symbols. There should be no spaces in the line	474 – 509

Security

Parameter	Range of Values	Factory Value	Description	Address
Specified password for access to the mode of setting	Line of symbols	11111	Used for access to the mode of setting EM-486. As a password there can be used a line with length from 5 to 10 symbols. There should be no spaces in the line	510 – 519
Specified password for writing access via incoming SMS	Line of symbols	gap	Used for verification of incoming SMS with inquiry for writing of alarm confirmation. As a password there can be used a line with length from 3 to 10 symbols. There should be no spaces in the line	530 – 539
Specified password for reading access via incoming SMS	Line of symbols	gap	Used for verification of incoming SMS with inquiry for reading of alarm confirmation. As a password there can be used a line with length from 3 to 10 symbols. There should be no spaces in the line	540 – 549
Specified password for writing access via MODBUS TCP in devices (in except the EM-486)	Line of symbols	-	Used for access to the devices connected to EM-486, for inquiry of functions of writing or control, that can change the state of these devices. As a password there can be used a line with length up to 10 symbols. There should be no spaces in the line	550 – 559
Specified password for reading access via MODBUS	Line of symbols	-	Used for access to the devices connected to EM-486, for inquiry of functions of reading or for access to registers of EM-486 except for registers of version, password, mode and tags. As a password there can be used a line with length up to 10 symbols. There should be no spaces in the line	560 – 569
Enable the protection mode against writing via SMS	0 – 1	0	0: protection against writing is regulated with help of other parameters (password); 1: blocking of inquiries via SMS for function of writing	570
Enable the protection mode against reading via SMS	0 – 1	0	0: protection against reading is regulated with help of other parameters (password); 1: blocking of inquiries via SMS for function of reading	571
Enable the protection mode against writing via MODBUS TCP	0 – 1	0	0: protection against writing is regulated with help of other parameters (password) or deactivated; 1: blocking of any function inquiries except for functions of MODBUS 1, 2, 3, 4, 7, 17, 20	572
Enable the protection mode against reading via MODBUS TCP	0 – 1	0	0: protection against reading is regulated with help of other parameters (password) or deactivated; 1: blocking of inquiries for MODBUS functions 1, 2, 3, 4, 7, 17, 20, except for reading of functions of three registers of version, mode and tabs	573

Relay

Parameter	Range of Values	Factory Value	Description	Address
Normal state of relay K1	0 – 1	0	0 – in normal state the relay is OFF; 1 – in normal state the relay is ON, a command for switching on the relay, deactivates it	575
Normal state of relay K2	0 – 1	0	0 – in normal state the relay is OFF; 1 – in normal state the relay is ON, a command for switching on the relay, deactivates it	576
Normal state of relay K3	0 – 1	0	0 – in normal state the relay is OFF; 1 – in normal state the relay is ON, a command for switching on the relay, deactivates it	577

Sensors

Parameter	Range of Values	Factory Value	Description	Address
Type of sensor connected to input 1	0 – 17	0	0: Sensor is not connected; 1: Sensor with output 0 – 10 V; 2: Sensor with output 2 – 10 V; 3: Sensor with output 0 – 20 mA; 4: Sensor with output 4 – 20 mA; 5: Discrete breaker; 6: Temperature NTC 2 kΩ (B=3950); 7: Temperature NTC 2.5 kΩ (B=3660); 8: Temperature NTC 2.5 kΩ (B=3980); 9: Temperature NTC 5 kΩ (B=3300); 10: Temperature NTC 5 kΩ (B=3520); 11: Temperature NTC 5 kΩ (B=3970); 12: Temperature NTC 6.8 kΩ (B=3520); 13: Temperature NTC 10 kΩ (B=3435); 14: Temperature NTC 10 kΩ (B=3650); 15: Temperature NTC 10 kΩ (B=3950); 16: Temperature NTC 15 kΩ (B=4145); 17: Temperature NTC 20 kΩ (B=4200)	580
Effective minimum value for sensor of input 1	-32768 – +32767	0	For the sensor with analog output – the value of register of effective value (address 141) at minimal value of sensor output (depending on the type); For the discrete breakers – the value of the register of effective value at contacts being open; For temperature sensors – the sensor temperature values (address 140), for which the correction is made	581
Effective maximum value for sensor of input 1	-32768 – +32767	100	For the sensor with analog output – the value of register of effective value (address 141) at maximal value of sensor output (depending on the type); For the discrete breakers – the value of the register of effective value at contacts being closed; For temperature sensors – sensor corrected temperature value (address 141), at measured temperature equal to the value of register 581	582
Presentation value of sensor 1	0 – 1	0	0: Measured value is presented on the display console and at the status page of WEB-interface; 1: Adjusted value is presented on the display console and at the status page of WEB-interface	583
Quantity of decimal signs of adjusted value of sensor 1	0 – 4	0	The parameter is not used if presentation of measured value has been selected. When adjusted value is presented on the display console or at the status page of WEB-interface, this parameter indicates accuracy of the decimal fraction (position of decimal point from the right edge)	584
Annexation of a measuring device of adjusted value of sensor 1	-24 – +24	0	The parameter is not used if presentation of measured value has been selected. When adjusted value is presented on the display console or at the status page of WEB- interface, a corresponding annex is presented after the value (0 – no annex): -24: «i»; -21: «z»; -18: «a»; -15: «f»; -12: «p»; -9: «n»; -6: «µ»; -3: «m»; -2: «s»; -1 «d»; 1: «yes»; 2: «g»; 3: «k»; 6: «М»; 9: «G»; 12: «T»; 15: «P»; 18: «E»; 21: «Z»; 24: «I»	585
Measuring device of effective value of sensor 1 for imaging	Line of symbols	%	The parameter is not used if presentation of measured value has been selected. When adjusted value is presented on the display console or at the status page of WEB-interface, the value a corresponding is presented after annex.	586 – 589
Type of sensor connected to input 2	0 – 17	0	Similar to 580	590
Effective minimum value for sensor of input 2	-32768 – +32767	0	Similar to 581	591
Effective maximum value for sensor of input 2	-32768 – +32767	100	Similar to 582	592
Presentation value of sensor 2	0 – 1	0	Similar to 583	593
Quantity of decimal signs of adjusted value of sensor 2	0 – 4	0	Similar to 584	594
Annexation of a measuring device of adjusted value of sensor 2	-24 – +24	0	Similar to 585	595
Measuring device of effective value of sensor 2 for imaging	Line of symbols	%	Similar to 586 – 589	596 – 599
Type of sensor connected to input 3	0 – 17	0	Similar to 580	600
Effective minimum value for sensor of input 3	-32768 – +32767	0	Similar to 581	601
Effective maximum value for sensor of input 3	-32768 – +32767	100	Similar to 582	602
Presentation value of sensor 3	0 – 1	0	Similar to 583	603
Quantity of decimal signs of adjusted value of sensor 3	0 – 4	0	Similar to 584	604
Annexation of a measuring device of adjusted value of sensor 3	-24 – +24	0	Similar to 585	605
Measuring device of effective value of sensor 3 for imaging	Line of symbols	%	Similar to 586 – 589	606 – 609
Type of sensor connected to input 4	0 – 17	0	Similar to 580	610
Effective minimum value for sensor of input 4	-32768 – +32767	0	Similar to 581	611
Effective maximum value for sensor of input 4	-32768 – +32767	100	Similar to 582	612
Presentation value of sensor 4	0 – 1	0	Similar to 583	613
Quantity of decimal signs of adjusted value of sensor 4	0 – 4	0	Similar to 584	614
Annexation of a measuring device of adjusted value of sensor 4	-24 – +24	0	Similar to 585	615
Measuring device of effective value of sensor 4 for imaging	Line of symbols	%	Similar to 586–589	616 – 619

Miscellaneous

Parameter	Range of Values	Factory Value	Description	Address
Enable periodic automatic restart of the device	0 – 1	1	0: periodic restart disabled; 1: device restarts at a specified interval of time	630
Device restart interval, min	5 – 7200	120	Used if periodic restart of the device is enabled	631
Enable the mode of automatic restart only when there are no connections	0 – 1	1	Used if periodic automatic restart of the device is enabled. 0: device restarts at a specified interval of time after startup; 1: device restarts at a specified interval of time after the last transmitting via Ethernet or GSM networks	632
MODBUS exception code generated when there is no access	0 – 255	1	0: When there is no access to device MODBUS registers or connected devices, the reply is not returned to the client. 1-255: When there is no access to the client sending the inquiry, this exception code is returned	633
MODBUS exception code generated when there is no reply	0 – 255	11	0: When there is no reply from inquiry addressee (Gateway Timeout) the reply is not returned to the client; 1-255: when there is a reply from the inquiry addressee, this exception code is returned to the client	634
Switch on normally closed relays only after device complete initialization	0 – 1	0	0: normally closed relays are switched on immediately after device start; 1: normally closed relays are switched on only after device initialization procedure (it is recommended, if relay outputs are connected with universal inputs)	635
MODBUS exception code generated if there is no connection to query addressee	0 – 255	10	0 – If there is no connection to the query addressee (Gateway Path Unavailable), response is not returned to the client; 1 – 255 – if there is no connection to the query addressee, this exception code is returned to the client	636
Enable RS-485 slave mode	0 – 1	0	0 – Driving mode (Master). RS-485 is used to send queries; 1 – Driven mode (Slave). RS-485 is used to receive queries from additional client	637
First MODBUS-identifier of RS-485	1 – 255	1	Parameters define a range of MODBUS identifiers used for RS-485. In the master mode the queries with addresses in this range (and also the broadcast ones with address 0) are sent via RS-485. In the slave mode the queries with addresses in this range (and also the broadcast ones and the queries to EM-486 address) are received via RS-485	638
Last MODBUS-identifier of RS-485	1 – 255	255	See register 638	639

Connection to the First Remote Server of MODBUS TCP

Parameter	Range of Values	Factory Value	Description	Address
IP-address of remote server	IP-address	192.168.0.112	It is used when enabling redirection of queries to MODBUS TCP remote server. IP-address of the remote server wherewith connection is maintained	640 – 643
Port of the remote server connection	0 – 65535	502	It is used during redirection of queries to the remote server. The remote server port is for MODBUS TCP connection	644
Standby time to answer from the remote server, ms	0 – 60000	1000	It is used during redirection of queries to the remote server. After the query transfer, if the correct answer failed to be received within this time interval, answer waiting is stopped	645
Standby time to repeated connection to the remote server, ms	0 – 240	20	It is used during redirection of queries to the remote server. After connection with the server is lost, the repeated connection will be performed after preset standby time	646
Remote server connection mode	0 – 8	0	0 – MODBUS TCP remote server is not used; 1 – to connect to the server using Ethernet or GPRS, preferably via Ethernet; 2 – to connect to the server using Ethernet or GPRS, preferably via GPRS; 3 – to connect to the server only via Ethernet; 4 – to connect to the server only via GPRS; 5 – similar to 1 with virtual identifiers; 6 – similar to 2 with virtual identifiers; 7 – similar to 3 with virtual identifiers; 8 – similar to 4 with virtual identifiers	647
First MODBUS-identifier of the remote server	1 – 255	1	It is used during redirection of queries to the remote server. The parameters define the range of MODBUS identifiers used on the remote server. Queries with addresses in this range (and also the broadcast ones with address 0) are sent to the remote MODBUS TCP server	648
Last MODBUS-identifier of the remote server	1 – 255	255	See register 648	649

Counters

Parameter	Range of Values	Factory Value	Description	Address
Pulse counter mode for input 1	0 – 7	0	0 - counter not used; 1 - pulse rising edge counter; 2 - pulse falling edge counter; 3 - both pulse edges counter; 4 - similar to 0; 5 - similar to 1, the counter is saved to the memory card; 6 - similar to 2, the counter is saved to the memory card; 7 - similar to 3, the counter is saved to the memory card	650
Pulse quantity in device of time of counter 1	1 – 999999999	8000	Used only is counter is switched on. Pulse quantity on input, after pulses are registered counter is set to one	651 – 652
Counter 1 maximum value	0 – 999999999	999999999	Used only is counter is switched on. After counter maximum value exceeds counter is set to 0	653 – 654
Counter 1 maximum frequency	1 – 500000	500000	Used only is counter is switched on. Square pulses maximum frequency on input. For pulses of other form value shall be increased	655 – 656
Lower threshold for determining the edge of the pulse for counter 1	0 – 100	25	Used only is counter is switched on. Falling edge start is defined when signal weakens on input at lower threshold. Threshold is set as a share from peak signal in percentages	657
Upper threshold for determining the leading edge for counter 1	0 – 100	75	Used only is counter is switched on. Rising edge start is defined when signal enhances on input at higher threshold. Threshold is set as a share from peak signal in percentages	658
Pulse counter mode for input 2	0 – 7	0	Similarly 650	660
Pulse quantity in device of time of counter 2	1 – 999999999	8000	Similarly 651 – 652	661 – 662
Counter 2 maximum value	0 – 999999999	999999999	Similarly 653 – 654	663 – 664
Counter 2 maximum frequency	1 – 500000	500000	Similarly 655 – 656	665 – 666
Lower threshold for determining the edge of the pulse for counter 2	0 – 100	25	Similarly 657	667
Upper threshold for determining the leading edge for counter 2	0 – 100	75	Similarly 658	668
Pulse counter mode for input 3	0 – 7	0	Similarly 650	670
Pulse quantity in device of time of counter 3	1 – 999999999	8000	Similarly 651–652	671 – 672
Counter 3 maximum value	0 – 999999999	999999999	Similarly 653–654	673 – 674
Counter 3 maximum frequency	1 – 500000	500000	Similarly 655–656	675 – 676
Lower threshold for determining the edge of the pulse for counter 3	0 – 100	25	Similarly 657	677
Upper threshold for determining the leading edge for counter 3	0 – 100	75	Similarly 658	678
Pulse counter mode for input 4	0 – 3	0	Similarly 650	680
Pulse quantity in device of time of counter 4	1 – 999999999	8000	Similarly 651–652	681 – 682
Counter 4 maximum value	0 – 999999999	999999999	Similarly 653–654	683 – 684
Counter 4 maximum frequency	1 – 500000	500000	Similarly 655–656	685 – 686
Lower threshold for determining the edge of the pulse for counter 4	0 – 100	25	Similarly 657	687
Upper threshold for determining the leading edge for counter 4	0 – 100	75	Similarly 658	688

Automatic Transition to Daylight Saving Time

Parameter	Range of Values	Factory Value	Description	Address
Daylight saving time transition mode	0 – 15	0	0 – automatic transition is not used (the gain can be set manually when setting the clock); 1 – Brazil; 2 – Great Britain; 3 – Germany; 4 – Greece; 5 – Jordan; 6 – Italy; 7 – Namibia; 8 – Poland; 9 – Portugal; 10 – USA; 11 – Turkey; 12 – Namibia; 13 – Finland; 14 – France; 15 – according to preset days	700
Preset month for transition to daylight saving time	1 – 12	3	It is used if you selected the automatic transition to daylight saving time on the specified days. The month when the clock will be set one hour ahead	701
Preset week of the month for transition to daylight saving time	1 – 10	10	It is used if you selected the automatic transition to daylight saving time on the specified days. Week of the month when the clock will be set one hour ahead. 1–5 – week of the month, counting the part weeks; other values – the last week of the month	702
Preset the week day for transition to daylight saving time	1 – 7	7	It is used if you selected the automatic transition to daylight saving time on the specified days. The week day when the clock will be set one hour ahead	703
Preset hour for transition to daylight saving time	0 – 22	2	It is used if you selected the automatic transition to daylight saving time on the specified days. The hour of the day at which the clock will be set one hour ahead	704
Preset month of revert to standard time	1 – 12	10	It is used if you selected the automatic transition to daylight saving time on the specified days. The month when the clock will be set one hour back	705
Preset week of the month of revert to standard time	1 – 10	10	It is used if you selected the automatic transition to daylight saving time on the specified days. Week of the month when the clock will be set one hour back. 1–5 – week of the month, counting the part weeks; other values – the last week of the month	706
Preset day of the week of revert to standard time	1 – 7	7	It is used if you selected the automatic transition to daylight saving time on the specified days. The day of the week when the clock will be set one hour back	707
Preset hour of revert to standard time	1 – 23	3	It is used if you selected the automatic transition to daylight saving time on the specified days. The hour of the day at which the clock will be set one hour back	708

Calculation of Sunrises and Sunsets

Parameter	Range of Values	Factory Value	Description	Address
Sunny day	0 – 3	1	0 – official; 1 – civil; 2 – nautical; 3 – astronomical	709
Latitude, degrees	0 – 89	46	The absolute value of the latitude	710
Latitude, minutes	0 – 59	29	Minutes of latitude	711
Latitude, seconds	0 – 59	10	Seconds of latitude	712
Longitude, degrees	0 – 179	30	The absolute value of the longitude	713
Longitude, minutes	0 – 59	43	Minutes of longitude	714
Longitude, seconds	0 – 59	40	Seconds of longitude	715
Quadrant	0 – 3	0	0 – N latitude, E longitude; 1 – N latitude, W longitude; 2 – S latitude, E longitude; 3 – S latitude, W longitude	716

The Connection to the Server of NTP Clock Synchronization

Parameter	Range of Values	Factory Value	Description	Address
NTP server connection mode	0 – 4	0	0 – clock synchronization with the server is not used; 1 – to connect to the servers using Ethernet or GPRS, preferably via Ethernet; 2 – to connect to the servers using Ethernet or GPRS, preferably via GPRS; 3 – to connect to the servers only via Ethernet; 4 – to connect to the servers only via GPRS	717
Time period of connection to NTP servers, h	1 – 240	24	It is used if you have enabled synchronization of clocks with the server clock. The time interval over which the server time is received	718
Minimum shift of clock for synchronization, s	1 – 180	2	It is used if you have enabled synchronization of clocks with the server clock. The synchronization is performed after receiving the server time, if the difference between the clocks is no less than this value	719

Logging

Parameter	Range of Values	Factory Value	Description	Address
Supply voltage minimum for safe memory card removal, mV	0 – 24000	9000	If the supply voltage is below the specified value, the memory card will be safely removed. The card can be used again after the supply voltage exceeds the minimum plus 0.5 V. 0 - do not remove the memory card, even if the supply voltage is unknown	724
Format for logging parameters in task files	0 – 4	1	Used if there is a memory card and logging actions in task files. 0 - not used; 1 - compact file of data bytes; 2 - CSV table with text separator; 3 - similarly 2 with a separator; 4 - similar to 2 with tab delimiter	725
Maximum size of log files, kB	0 – 65535	65535	Used if there is a memory card present, logging actions in task files, and logging is enabled. The size of the generated files is limited to the specified size plus 1 kB	726
Minimum stored period in recorder mode, days	0 – 255	30	Used if there is a memory card present, logging actions in task files, and logging is enabled. 0-183 - the oldest files (older than the specified number of days ago) can be deleted to write new data; Other values - old files are saved, new data recording is suspended when the memory card is full	727

Encryption

Parameter	Range of Values	Factory Value	Description	Address
Communication channel encryption with MODBUS TCP clients	0 – 2	1	Used for connections to MODBUS TCP ports (reg. 334 and 450). 0 - disabled; 1 - optional (enabled at the client’s request, if the client supports encryption); 2 - forced (commands and data are blocked, except those necessary to start the encrypted channel)	728
MODBUS identifier of the first remote server compatible with Novatek-Electro gateways	0 – 255	0	Used only when connection to a remote server is selected. Virtual ID mode, if enabled for the server, is not reflected in this parameter. 0 - features for compatible gateways are disabled (recommended if compatibility is unknown); 1-255 - channel encryption (reg. 731), password sending for access (reg. 800-809) are available; if disabling of inactive clients (reg. 451) is selected, short requests are sent during downtime to maintain the connection	730
Encryption of communication channel with the first remote MODBUS TCP server	0 – 2	1	Used only if connection to a remote server is selected and its identifier is set (reg. 730). 0 - disabled; 1 - optional (enabled if the server supports encryption); 2 - forced (the connection is disconnected if the encrypted channel could not be established)	731
MODBUS identifier of the second remote server	0 – 255	0	Similar to 730	732
Encryption of communication channel with the second remote server MODBUS TCP	0 – 2	1	Similar to 731	733
MODBUS identifier of the third remote server	0 – 255	0	Similar to 730	734
Encryption of communication channel with the third remote MODBUS TCP server	0 – 2	1	Similar to 731	735

Subscribers

Parameter	Range of Values	Factory Value	Description	Address
Main subscriber phone number	Character string	-	Can be used to send SMS. Up to 20 characters. There can be no spaces in the line	740 – 759

Connect to the Second Remote MODBUS TCP Server

Parameter	Range of Values	Factory Value	Description	Address
Remote server IP address	IP-address	192.168.0.113	Similar to 640 – 643	760 – 763
Remote server connection port	0 – 65535	502	Similar to 644	764
Waiting time for a response from a remote server, ms	0 – 60000	1000	Similar to 645	765
Waiting time before reconnecting to a remote server, ms	0 – 240	20	Similar to 646	766
Remote server connection mode	0 – 8	0	Similar to 647	767
First MODBUS-identifier of the remote server	1 – 255	1	Similar to 648 – 649	768
Last MODBUS-identifier of the remote server	1 – 255	255	See register 768	769

Connection to the Third Remote MODBUS TCP Server

Parameter	Range of Values	Factory Value	Description	Address
IP address of the remote server	IP address	192.168.0.113	Similar to 640 – 643	770 – 773
Remote server connection port	0 – 65535	502	Similar to 644	774
Response time from remote server, ms	0 – 60000	1000	Similar to 645	775
Waiting time before reconnection to the remote server, ms	0 – 240	20	Similar to 646	776
Remote server connection mode	0 – 8	0	Similar to 647	777
First MODBUS-identifier of the remote server	1 – 255	1	Similar to 648–649	778
Last MODBUS-identifier of the remote server	1 – 255	255	See register 778	779

Preset Passwords for Access to Remote Servers

Parameter	Range of Values	Factory Value	Description	Address
Preset password for access to the first remote MODBUS TCP server	Character string	-	Used only if connection to a remote server is selected and its ID is set (reg. 730). If a password is set, it will be entered immediately after connecting to the server. Obtained access rights depend on the settings of the remote server. A string up to 10 characters long can be specified as a password. No spaces can be in the string	800 – 809
Preset password for access to the second remote MODBUS TCP server	Character string	-	Similar to 800 – 809	810 – 819
Preset password for access to the third remote MODBUS TCP server	Character string	-	Similar to 800 – 809	820 – 829

User Settings

Parameter	Range of Values	Factory Value	Description	Address
User’s settings and stored values	0 – 65535	0	They can be used to store any identification data of the device or for adjusting the settings of task files operation	5250 – 5499

Setting the Clock

Note

Registers for the clock setting are available only in the clock setting mode, see registers 120, 122.

Parameter	Range of Values	Factory Value	Description	Address
Adding daylight saving time, min	-1440 – +1440	-	Current gain. It is set during manual transition to the daylight saving time, when selecting the automatic mode it will be adjusted within 5 minutes. The value must be a multiple of 15	34817
Adding time zone, min	-1440 – +1440	120	It is used during synchronization of the clock with the server clock. The value must be a multiple of 15	34818
Second	0 – 59	-	The time is to be set at the clock	34819
Minute	0 – 59	-	The time is to be set at the clock	34820
Hour	0 – 23	-	The time is to be set at the clock	34821
Day	1 – 31	-	The date is to be set at the clock	34822
Month	1 – 12	-	The date is to be set at the clock	34823
Year	0 – 65535	-	The year is to be set at the clock	34824
Set the clock	0 – 65535	0	It is used to set the clock. When recording to this register with any value, the new clock settings in registers 34817-34824 will be set	34825

Virtual Identifiers Mode

In the virtual identifier’s mode, before the request is redirected to the remote server, the virtual identifier of the addressee from the request is replaced with the real one so that the numbering in the server range starts from 1. For example, for the range 15-17, the virtual ID 16 will be replaced with the real 2. Broadcast ID 0 is processed unchanged.