I have 31 OPC-UA devices connected in Ignition, and I am trying to add a new controller: Honeywell UDC3200 with an Ethernet card. I’ve set the controller up correctly with Honeywell’s configuration utility. I have assigned it a static IP address that’s on my subnet and can ping it.
The image above shows the addressing used for the registers in the controller. (I need to grab the SP & PV.)
I’ve tried two methods connect without success Modbus TCP and Modbus RTU over TCP. Neither worked.
Any suggestions for connecting?
Any suggestion for reading addresses 400001 and 400003?
Thanks,
Darrell
The “TCP Driver” in your screenshot is not Modbus TCP. It’s a generic TCP driver meant for barcode scanners and things like that.
Are you sure you’ve tried Modbus TCP yet?
I have, but I’ll give it another shot.
I created a new device with the connection as a Modbus TCP. On the Device Connections page, it shows it as Connecting… Disconnected… Connecting… etc.
I don’t think there’s anything left to troubleshoot in Ignition then. This device isn’t accepting your connection for some reason. You can verify this with a 3rd party Modbus utility like Modscan or Simply Modbus.
Is there something you have to do in the controller to actually enable Modbus TCP connections?
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Good question, Kevin. As far as I know everything on the controller side should be set up, but I’ll look deeper into it.
Thanks!
