Why the Gripper is working on RUI but not on TM Omron robot ?

This article presents a possible cause explaining why a gripper could work on RUI and not on TM/Omron robot.

Solution

RUI can control the gripper with any slave ID and any baud rate while TM/Omron by default can only communicate with a gripper that has a slave ID equal to 9.

Double check the modbus rtu settings of the gripper in RUI. The gripper most probably does not have the default slave ID (9). Some other communication settings may not be at the default value (baud rate,...).

Make also sure the COM port used for the physical connection matches the COM port defined in the SET node.