Modbus Parameter Setting

Overview

The Lexium Cobot supports Modbus TCP/IP and Modbus RTU communication modes.

To set the parameters for a connection with the Modbus server, go to Settings > Hardware and communication > Modbus Parameter Settings.

After the connection is established on client side, you can read the Lexium Cobot state and control the Lexium Cobot I/O signal based on the register address and the function code program in the Modbus Address Table.

To edit the Modbus information, click I/O Panel > Modbus in the feature bar.

NOTE: Disable the Lexium Cobot Arm for setting the Modbus configuration.

Setting the Modbus TCP/IP Mode

To set the Modbus TCP/IP mode, perform the following steps:

Step

Action

1

In Settings > Hardware and communication > Modbus Parameter Settings, select Modbus TCP/IP.

2

In Channel, edit the channel number according to your Modbus settings.

3

Click Confirm.

Result: The new Modbus port is set.

4

Restart the Lexium Cobot Controller.

Setting the Modbus RTU Mode

To set the Modbus RTU mode, perform the following steps:

Step

Action

1

In Settings > Hardware and communication > Modbus Parameter Settings, select Modbus RTU.

2

Set the parameters for the Modbus server.

NOTE: PLC-side setting interface must be configured as it is for the Lexium Cobot.

The default parameters are:

  • Slave station node number: –

  • Baud rate: 4800

  • Data bit length: 8 bits

  • Stop bit length: 1 bit

  • Parity method: Even parity

3

Click Confirm.

Result: The new Modbus configuration is set.

4

Restart the Lexium Cobot Controller.