S7-1200 M Data Not Downloading

sanger

Member
Join Date
Nov 2005
Location
Toronto
Posts
172
When I upload a program from one S7-1200 then download it to another I always end up with all zeros for the M registers. Is there a way to preserve the M registers when uploading and downloading?
 

Similar Topics

Dear Experts, Please, kindly guide me through how to read data from ABB PLC to S7-1200 Siemens PLC. I want to use Siemens S7-1200 PLC to read data...
Replies
1
Views
443
Hi, I have a s7-1200 at home that went into "CPU error: Serious firmware exception". After a power cycle it was OK again, but all retained data...
Replies
2
Views
834
Hi to all, I have a power supply "gwinstek" PSP-2010, with rs-232, so I want to control it with S7-1200 "1212acdcrly with CM-1241 RS-232 module...
Replies
2
Views
1,415
Hello all, I am working on a project utilizing an s7-1200 cpu and Tia Portal v17. I currently have an external PCB with some sensors on it (and...
Replies
1
Views
723
Hello all, PLC-programming noob here. I have multiple clients accessing some data on my Siemens S7 1211C PLC; some OPC clients and some direct...
Replies
30
Views
8,287
Back
Top Bottom