You are not registered yet. Please click here to register!

plc storereviewsdownloads
This board is for PLC Related Q&A ONLY. Please DON'T use it for advertising, etc.
Try our online PLC Simulator- FREE.  Click here now to try it.

---------->>>>>Get FREE PLC Programming Tips

New Here? Please read this important info!!!

Go Back - Interactive Q & A > - Interactive Q & A > LIVE PLC Questions And Answers

PLC training tools sale

Thread Tools Display Modes
Old January 9th, 2018, 05:29 AM   #1
Alen bradley

Alen bradley is offline
Join Date: Apr 2013
Location: qatar
Posts: 23
MVI46-MCM Modbus Comms

Hi All,

I am trouble understanding how the Modbus card addresses are configured with respect to slave device addresses.

SLC500 is running the above program with the MVI46-MCM prosoft card in 12th slot. The slave device is a Control Microprocessor with the holding registers from 41001. I am confused as how the holding registers are linked to the M-file addresses in PLC. For example, in the above image, the 41001 holding register is sending data to M1:12.600 which is then copied to N30:0. Where will this transfer of data configured? I have never setup the Modbus comms for SLC500 PLC. Is it done by another program or the sample ladder provided by prosoft for the module? I can not seem to open the sample ladder to have a look in it as the PLC is on different server. I have attached the sample ladder logic from prosoft so if anyone convert it in to pdf so I can have a look, that will be great. Thanks!!
Attached Files
File Type: zip (19.6 KB, 1 views)
  Reply With Quote
Jump to Live PLC Question and Answer Forum


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Topics
Thread Thread Starter Forum Replies Last Post
modbus comms ganutenator LIVE PLC Questions And Answers 2 December 3rd, 2016 01:17 PM
Red lion G310 to Unidrive comms on modbus wazzajnr LIVE PLC Questions And Answers 16 March 23rd, 2010 04:50 AM
TSX Micro Modbus Comms To Bristol Controlwave Mirco rdredge LIVE PLC Questions And Answers 2 March 10th, 2010 03:00 PM
PF4 Modbus Comms Cable robw53 LIVE PLC Questions And Answers 1 March 3rd, 2010 09:30 PM
one ethernet card, two Modbus TCP/IP comms rgua LIVE PLC Questions And Answers 0 October 3rd, 2007 09:15 AM

All times are GMT -5. The time now is 05:08 AM.