Siemens MP277 to CompactLogix

bentleya · Mar 11, 2011

Hey guys & gals,
Did a quick search and couldn't find anything, so....
I'm having a terrible time trying to get a Siemens MP277 to 'talk' to an L32E CompactLogix (ethernet). I have created a new, basic HMI program with one tag, trying to get it to read the Compact. I have the IP's set correctly, and can talk with either on the network (with respective programs, i.e.: RS5000 to CompactLogix). I can program the HMI thru the network as well. The 'tag address' is exactly as the address within the PLC. I have the 'connection' setup for AB Ethernet on the HMI.
I've used many different HMI's and have never had so much trouble trying to get something to talk, I'm guessing it's normal 'Siemens' to over-engineer something....

Any thoughts?

bentleya · Mar 11, 2011

Additional Info.

I forgot to mention, the same software will work on the Runtime on my laptop. It will not work on the MP277.

JesperMP · Mar 11, 2011

Did you set the IP adress on the MP277 ?

bentleya · Mar 14, 2011

Siemens MP277

Yes, the IPs are set.
When using the 'runtime' on the laptop (same software that is downloaded to HMI) it will work fine. Download the program to the HMI and it doens't work???

JesperMP · Mar 14, 2011

It seems that you have done everything correctly.
I cannot point a finger at what could be wrong.

Can you ping both PLC and MP277 ?

PLC · Mar 14, 2011

bentleya said:
Yes, the IPs are set.
When using the 'runtime' on the laptop (same software that is downloaded to HMI) it will work fine. Download the program to the HMI and it doens't work???

Do you have duplicate ip addresses?

Try the Siemens hotline
18003337421

bentleya · Mar 14, 2011

Thanks for looking at it....
Yes, I can ping either.
I actually use the Siemens Wincc to program the HMI thru the ethernet connection, no problem. I program the CompactLogix thru the ethernet connection. No IP conflicts.
I do get an alarm or warning, it says something like "interface [ip address]cannot be opened."
Oh, thanks for the number. I've been working thru email with Seimens. They sent me an example which was very simple. I had it exactly as they showed....nothing.

JesperMP · Mar 14, 2011

What if you connect CompactLogix and MP277 directly ?
And try switching straight cable to a crossed cable.

bentleya · Mar 21, 2011

Siemens cold line

Tried the Siemens Hot Line....no ideas...
Tried cross-over cable, straight thru... nothing.

JRW · Mar 21, 2011

Im curious- Do you have a ControlLogix processor handy?
If so- can you try it?

bentleya · Mar 21, 2011

No, no Control logix.
I've got many SLC's, and several CompactLogix.
I've got other HMI's working with Compact's with no problem.
I think the 'clue' is that the software will run on the PC with no problem, but downloaded to HMI, problem.

Jeff23spl · Mar 21, 2011

did you have tried to ping any device from the HMI windows.
It has no choice to be hardware because you can see it in wincc flex runtime....Does the download works fine but the screen show the entry with "#####" or you can't download at all ?

bentleya · Mar 21, 2011

No problem downloading thru the ethernet network.
It shows "#####" when trying to access an I/O.
It's kind of like it can't open the comm port....

cbuysse · Mar 21, 2011

What are the IP addresses and subnet masks for each device? PC, HMI, Compact?

Jeff23spl · Mar 21, 2011

did you tried another variable ? did you try with your runtime running beside ?
Have you tryied to update the firmware (OS) just in case ?

Siemens MP277 to CompactLogix

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