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Modbus TCP/IP Server

Requirements

  • Modbus & OPC Edition or Ultimate Edition

This driver implements a Modbus TCP/IP Server (slave).

modbus server driver

Configuration

modbus server driver configuration

Auto connect Periodically tries to connect to the PLC.
Host Server IP address (read only).
Port TCP port number (default is 502).
Slave ID Slave ID.
Network adapter Network adapter to use.
Write Digital Where to write digital sensor values (Inputs or Coils).
Read Digital From where to read digital actuator values (Coils or Inputs).
Write Register Where to write analog sensor values (Input Registers or Holding Registers).
Read Register From where to read analog actuator values (Holding Registers or Input Registers).
Scale Floating sensor values are multiplied by this value; actuator values are divided by it. Using this approach, a floating sensor's value can be converted into an integer, sent to the client and converted back to a real number by dividing it by the scale factor (e.g. an input value of 3.14 with 100 as scale is sent as 314, then it can be divided by the same scale to obtain the real value of 3.14).
Digital Inputs Address offset and number of Digital Inputs to use (max 256).
Digital Outputs Address offset and number of Digital Outputs to use (max 256).
Register Inputs Address offset and number of Register Inputs to use (max 64).
Register Outputs Address offset and number of Register Outputs to use (max 64).