AB9001 Gateway Idle Transaction Error

I’ve got an interesting situation that happened with my anybus module. Was able to set up clients, servers, and Profibus comms and had everything communicating as of yesterday morning but then suddenly the gateway went idle and lost all incoming data coming into PLC without anything changing.

I am still able to connect to anybus module and still see it sending and recieving traffic from the devices it is communicating to in the field. It is also still sending data to the PLC (even though its all zeros) but cannot wrap my mind what has caused the gateway to go idle and stop sending actual data.

Any help would be much appreciated.

Are you using the Control/Status word? (See page 13 of the User Manual)

If so, you need to write to the Control Word in order to put the gateway into Run mode.

If disabled, the gateway will start up in Run mode automatically.

Yes we were. Adding the transit block in the PLC and sending a 1 from the control word took care of the issue. Thanks!

Great! Thanks for the update.