Modbus-Square D PowerLogic Ethernet OPC Server

The Modbus-Square D PowerLogic Ethernet OPC Server communicates with one or more Modicon TCP/IP Ethernet PLC(s) and/or devices connected to one or more Square D POWERLOGIC Ethernet Communication Modules (ECM) or Ethernet Communication Cards (ECC) using MODBUS/TCP as the application protocol over an Ethernet network.

Device redundancy is built into the server. It can be configured to provide complete, automatic switch over to backup controllers on failure detection or under application control. Device redundancy provides uninterrupted data transfer between the process and the client application(s).

The Modbus-Square D PowerLogic Ethernet OPC Server supports data exchange with Clients via Microsoft's Object Linking and Embedding (OLE) for Process Control (OPC). This Server meets the OPC Data Server Specification Version 2.0. It also supports OPC Version 1.0.

The Server has a graphical user interface (GUI) configuration environment with an "Explorer" look and feel. The configuration environment allows the Server to be configured with information such as which device to interface with and which data in those configured devices should be accessed. Once data points have been configured, the Server can communicate with these devices on behalf of the Clients. Data exchanged occurs between the Server and the defined device data locations.  These locations are defined as part of the configuration process generating Tags in the Server database. Clients and the Server then reference the data via the tag names.

The Server was developed by DASTEC Corporation using the OPC Server Toolkit from FactorySoft, Inc.

Specifications

  • Operating System Supported: Windows 95/98/NT/2000 and newer.
  • Protocol Supported: MODBUS/TCP protocol over TCP/IP Ethernet.
  • Highly Configurable Device Redundancy.
  • Function Codes Supported:
    • Class 0:
      • Read Multiple Registers (HREGs) (function code 3)
      • Write Multiple Registers (HREGs) (function code 16)
    • Class 1:
      • Read Coils (function code 1)
      • Read Input Discretes (DINP) (function code 2)
      • Read Input Registers (IREGs) (function code 4)
      • Write Coil (function code 5)
      • Write Single Register (HREG) (function code 6)
      • Read Exception Status (EXSTAT) (function code 7)
    • Class 2:
      • Force Multiple Coils (function code 15)
      • Read General Reference (XREGs) (function code 20)
      • Write General Reference (XREGs) (function code 21)
      • Mask Write Register (HREG) (function code 22)
      • Read FIFO Queue (function code 24)
  • Device Supported: Any controller or device supporting the above protocol and one or more of the listed function codes can be used with the Server. These include Modicon PLCs, Square D Ethernet Communication Modules (ECM) and Square D Ethernet Communication Cards (ECC).
  • Data Types Supported: COIL, DINP, HREG, IREG, LREG, FREG, DREG, XREG, EXSTAT and FIFO
  • Data Scaling and Formats Supported: INT, UINT, LONG, ULONG, FLOAT, MODFLT (Modbus Float), DOUBLE, STRING, RSTRING (reverse string), PowerLogic 3 register DATETIME, PowerLogic PF (power factor), PowerLogic Scale Factors A-F and fixed decimal position scaling.
  • Adjustable Max Read Coil Size: 1 - 2000 coils (function code 1)
  • Adjustable Max Write Coil Size: 1 - 800 coils (function code 15)
  • Selectable Write Coil Function Codes: SINGLE (function code 5), MULTI (function code 15), or BOTH
  • Adjustable Max Read Discrete Input Size: 1 - 2000 coils (function code 2)
  • Adjustable Max Read Input Register Size: 1 - 125 registers (function code 4)
  • Adjustable Max Read Holding Register Size: 1 - 100 registers (function code 3)
  • Adjustable Max Write Holding Register Size: 1 - 125 registers (function code 16)
  • Selectable Write HREG Function Codes: SINGLE (function code 6), MULTI (function code 16), or BOTH
  • Selectable Mask Write Support: YES (support function code 22), NO (do not support function code 22)
  • Standard/Non Standard Data Addressing Supported.
  • Server error/status announcing via Device Tags
  • Device Definition File Import/Export: Define Tags and Tag Groups for configured devices via text files in Comma Separated Variable (CSV) format.

Required Additional Hardware
TCP/IP Ethernet LAN adapter

Required Additional Software
None

Ordering Information
Part No: OPC-MODTCP