Modbus Mapping in RS-5000

Nathanhays

Member
Join Date
Jun 2012
Location
Odessa
Posts
1
I am new to using RS-5000 and was wondering if there is anyway to map my tags to modbus addresses so I can read from CsMonitor without using a Prosoft card. I have been out of the AB world for 5 years now and as I recall you could set up a mapping table for the Micrologix PLC's in RS-500 and was just wondering if this was possible with RS-5000. I will be using the 1769-L24ER Compact Logix processor for this project.
 
The new 1769-L24xx controllers don't have a serial port, so the old "Modbus using ASCII commands" method won't work.

None of the ControlLogix family controllers have implemented Modbus on the built-in ports the way the MicroLogix and SLC controllers have.

Prosoft is still the gold standard for Modbus networking with any A-B controller. I know they're working on the development of a POINT I/O module for Modbus RTU protocol, but I think it's still in the preliminary stages of development.

There are alternatives to Prosoft; I have an inexpensive GridConnect Modbus RTU Master on my desk now. HMS Fieldbus and Real Time Automation would be my first two choices behind Prosoft for a Modbus RTU interface to ControlLogix or CompactLogix.

If you are not constrained by time, performance, or stability requirements, you can go afield and look at other interfaces. If it has to work the first time, use Prosoft.
 

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