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Overvis OPCB-221B

Overvis OPCB-221B communication controller

The Overvis OPCB-221B is a communication controller device suitable for industrial applications. Its main function is to connect MODBUS equipment with the Overvis cloud monitoring system or other SCADA systems. OPCB-221B operates as a MODBUS RTU↔TCP converter.

Key Capabilities

Section titled “Key Capabilities”
  • MODBUS RTU/TCP Converter: Bridge RS-485 devices to TCP/IP networks seamlessly
  • Built-in Overvis Cloud Support: Native integration with www.overvis.com for remote monitoring
  • Flexible Operation: Serve as TCP server or client, MODBUS RTU master or slave
  • Multiple Connectivity Options: LAN and/or Wi-Fi connection, optional 3G/LTE via USB modem
  • RS-485 Network Extension: Support multiple RS-485 networks with configurable settings
  • Web Interface: Browser-based configuration accessible locally, via Wi-Fi AP, or through cloud
  • Wi-Fi Access Point: Built-in hotspot mode for easy initial setup
  • MODBUS ASCII Support: Compatible with both RTU and ASCII protocols
  • HTTP API: RESTful interface for web applications and automation
  • Remote Configuration: Configure via MODBUS or web interface from anywhere

Common Use Cases

Section titled “Common Use Cases”

OPCB-221B operation diagram

OPCB-221B is used to connect:

  • Refrigeration controllers
  • HVAC systems controllers
  • Agricultural smart devices
  • Power network relays, meters, and other electrical equipment
  • Industrial IoT devices
  • Industrial sensors and meters
  • Any other MODBUS-compatible electronics

Overvis Cloud Integration

Section titled “Overvis Cloud Integration”

Overvis distributed objects monitoring visualization example

In conjunction with Overvis cloud monitoring, OPCB-221B devices provide:

Data Collection:

  • Gather operational data points (any numeric values) from your equipment
  • Store history of operational data, and get insights and analytics
  • Collected data is fully exportable (Excel, CSV)
  • Hazard Analysis Critical Control Point (HACCP) reporting

SMS and Email Notifications:

  • Configure alarms for operational parameter thresholds or connection errors
  • Set up a “chain of responsibility” requiring alarm confirmations from personnel and escalating them in the absence of response
  • All alarm actions are logged and ready for review

Real-time Monitoring and Control:

  • Create dashboards with real-time information received from the equipment
  • Visualize the data using open SVG format
  • Use Google Maps API to display objects’ locations
  • Use JavaScript and Overvis API to set up quick action controls for operation personnel

And More:

  • Use templates to quickly create devices and alarms
  • Manage access levels for different accounts inside one organization
  • Works with dynamic IPs and bypasses firewalls
  • Optimized mobile access
  • Industry-standard encryption
  • Overvis API allows the automation of control and can be used to load data into other management systems

Documentation

Section titled “Documentation”
  • Operating Manual – Complete safety information, technical specifications, connection diagrams, and operating procedures

Support

Section titled “Support”

Ready to get started? Head to the Operating Manual to learn about installation, connection, and configuration.