Can anyone help?
Temperature controller has two-wire RS-485 output. Outputs connected to to "A" & "B" of 1761-NET-AIC module. "A" is jumped to 'Term" on AIC. Shield is connected to SHLD & COM. The controller and the ML1100/AIC are the only devices on the network.
Distance between components is about 20'
CBL-AM-000 connects AIC to ML1100 CH-0.
CH-0 set to Modbus Master. All baud, parity, stop, etc. set the same as the temperature controller.
I think I have the MSG set up the right way. Reading 40 16-bit elements from "03 Read Holding Registers (4xxxxx). MB Data address is 4097 (Modbus addres 44097).
I always get error 37 "Message Timed Out In Local Processor". Tried every combination of baud rates, stop bits, handshaking, etc. (I think), but no luck.
I can post screen shots if anyone's interested in giving this a go.
Temperature controller has two-wire RS-485 output. Outputs connected to to "A" & "B" of 1761-NET-AIC module. "A" is jumped to 'Term" on AIC. Shield is connected to SHLD & COM. The controller and the ML1100/AIC are the only devices on the network.
Distance between components is about 20'
CBL-AM-000 connects AIC to ML1100 CH-0.
CH-0 set to Modbus Master. All baud, parity, stop, etc. set the same as the temperature controller.
I think I have the MSG set up the right way. Reading 40 16-bit elements from "03 Read Holding Registers (4xxxxx). MB Data address is 4097 (Modbus addres 44097).
I always get error 37 "Message Timed Out In Local Processor". Tried every combination of baud rates, stop bits, handshaking, etc. (I think), but no luck.
I can post screen shots if anyone's interested in giving this a go.