Hello,
I've been struggling with this for a few days. I'm running a Micrologix 1400 Series B controller and I'm trying to connect via Modbus TCP to an Omega temperature controller. Their literature says that they do support Modbus, and I can successfully connect to the controller via Modbus Poll (free download).
However, I can't get it to work in RS Logix 500. The connection will time out on me. When I send the command, I see the yellow Tx light illuminate on the controller, but the green Rx light never turns on.
When connected in Modbus poll, I see the Rx light illuminate whenever the Tx illuminates.
Attached is my .RSS file and some screen shots. I'm fairly certain it's configured properly. Note that I've tried many different addresses unsuccessfully. And I'm 100% certain the device IP and port addresses are correct (since I can connect via Modbus poll).
Ideas?
I've been struggling with this for a few days. I'm running a Micrologix 1400 Series B controller and I'm trying to connect via Modbus TCP to an Omega temperature controller. Their literature says that they do support Modbus, and I can successfully connect to the controller via Modbus Poll (free download).
However, I can't get it to work in RS Logix 500. The connection will time out on me. When I send the command, I see the yellow Tx light illuminate on the controller, but the green Rx light never turns on.
When connected in Modbus poll, I see the Rx light illuminate whenever the Tx illuminates.
Attached is my .RSS file and some screen shots. I'm fairly certain it's configured properly. Note that I've tried many different addresses unsuccessfully. And I'm 100% certain the device IP and port addresses are correct (since I can connect via Modbus poll).
Ideas?