Greetings G.D.
As a follow-up to my last reply; I did get an answer from Commfront regarding using their RS232 Analyzer software. My connection to Modbus is a single, M/F DB9, straight through connector, on Serial Comm 1. My Modbus connection is working fine, no problems.
When I ran the demo Commfront software, the program said" Cannot connect, Port already connected."
The Commfront reply to my various questions told me, in order to run their software program, I need to get another cable, and connect to a second computer, Laptop, or whatever is available. The Analyzer software needs to run on it's own Serial port.
The cable required is their part number: CBL-FULL-1A.
It has (4) DB9 connectors, (2) M/F pairs , and somehow connected appropriately in the middle.
To use the setup:
(1) Plug in one DB9 pair into the computer RS232 comm port running Mach3, and the other end of that line to the Modbus connector.
(2) Plug in the next pair to the same computer running Mach3 (need to use a USB to RS232 adapter if no extra Comm port available),
and the other end to a second computer. The software Analyzer runs on this computer. If it is a laptop with no RS232 connector, you need to get another USB to RS232 adapter.
Now, after assigning the correct ports in the Analyzer software program, all the data passing between the Mach3 program, and the Modbus, will show up on the second computer monitor, in the Analyzer screen, send and receive (in separate colors for readability) . You can send pre-written scripts, or codes; save all data to a log file, ...... etc.
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At this time, I do not need such a analysis setup, but as I get further into using Modbus, and working with the capabilities in Mach3, I certainly would consider the small expense well worth it. We all end up spending quite a lot of time getting our projects running, and an extra 150.00 is not that great an expense in the overall picture. I already have one USB to RS232 converter made by Parallax. I got it from "Solarbiotics", and it works great on my second DB9 port on the Cubloc 32-M board. I think it was about $22.00. It is for the second Cubloc serial port, for downloading ladder logic/Basic programs into the CB280 module.
Regards,
John