Description

The Modbus TCP client interface lets ibaPDA act as a Modbus client (master) and requests data from the connected Modbus servers.

Up to 16 connections can be used per interface license. By purchasing up to 15 one-step-up licenses, the number of connections can be increased up to 256.

Each connection corresponds to a Modbus client module in ibaPDA. Each connection has a separate thread so that all connections are independent of each other. The cycle time mentioned in the connection table is the time it takes to read out all connection data configured. The <Reset counters> button can be used to reset the error counter and the average, minimum and maximum cycle times. When problems occur, check all communication via Modbus TCP/IP by pressing the <Open log file> button.
Interface configuration

Set all values to zero…

You can optionally set all values to zero when the connection to a Modbus server is lost. Therefore, this option needs to be enabled.

Start acquisition even if…

By default, the acquisition cannot be started when the Modbus server is not accessible. However, enabling this checkbox allows you to force the start anyway.
Connection table

IP address

This is the IP address of the connected Modbus controller.

Cycle time

The cycle time values refer to the communication cycle.
Available modules

  • Modbus client (protocols Modbus TCP and serial)
Product name

ibaPDA-Interface-Modbus-TCP-Client-16 (Art. no. 31.001024)