09-23-2011 03:05 PM - edited 09-23-2011 03:06 PM
I replaced a Control Microsystems Scada PLC with an Allen Bradley Micrologix 1400. It communicates via a Modbus modem with kenwood radios to the host computer. The host computer running Lookout has a serial connection to the modbus modem. I did not change anything on the lookout software but this is the message that I got.
Do I need to delete the configured points and re-create them with the new addresses?
What does “start=” and “count =” mean?
Do I need to change anything in the Advance Modbus Options for the maximum values to work with an Micrologix 1400?
09-23-2011 09:18 PM
The slave likely doesn't support the range of bits requested.
See
http://www.simplymodbus.ca/exceptions.htm
Bob