Change communication from Horner PLC's to SIMENS S7 PLC's

Hello there guys and gals,

I currently am working on a communication issue and would like to see if someone can clarify for me how to communicate from a Horner PLC that communicates Cscan to Profinet.

I currently have 3 compressors with Remote I/O on each compressor that go to Horner PLC.

Now the compressor manufacture my company buys compressors from has now changed out Horner PLC's with SIMENS S7 PLC's. My dilemma is my company has existing sites all over the U.S with Horner's and pretty soon customers will want to add additional compressors to their sites which will now have SIEMENS S7's instead of Horner's.

How can I get the existing compressor skids with Horner PLC's to talk to SIEMENS S7.  By the way I would like the SIEMENS PLC to be the Master PLC controlling all of the PLC's.

Please bare with me guys as I am very limited in the Communications/PLC field so if someone can please advise in plain English I would gladly appreciate it.

Cheers!

-Romel-

----------------------------------------------------------------------------------------------------
Split from Communicating with Profinet over Modbus TCP.

Hi!

     I would start looking for a CAN - Profinet gateway and contact the manufacturer to ask if  it supports communication between Horner and Simatic.

e.g.

http://www.anybus.com/products/products.asp?PID=479&ProductType=Anybus%20Communicator%20CAN

Does the Horner PLC have Modbus functionality? You might be able to use Modbus/TCP to communicate between the two PLC's. You can set up the S7-1200 as client and the Horner as the server then you read the registers from the Horner PLC. From what I understand it can communicate from Can to profinet?

Take a look at these examples/Links;

S7-1200 to 1200 with modbus TCP

S7-1200 and Sentron

Modbus ports

Modbus general description

Thanks guys. for all the feedback.

I spoke to SIEMENS and Horner and they stated yes MODBUS TCP/IP is compatible with both PLC's. I am using a Horner XL6e and wanting to communicate with a SIEMENS SIMATIC S& 1200.

All that would need to be done is the configuration between the two PLC so the registers can be sent and received back and forth. That will be for the Programmer to figure out as I am only the Controls Designer and not the programmer unfortunately. Definitely would like to learn that side of things. :-(