S7-315 2PN/DP with CP343-1 Lean as Modbus TCP/IP Master?!

SIMATIC S7-200/300/400, Step7, PCS7, CFC, SFC, PDM, PLCSIM,
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alansal
Posts: 58
Joined: Mon Sep 24, 2007 1:03 pm
Location: Somewhere in Europe

S7-315 2PN/DP with CP343-1 Lean as Modbus TCP/IP Master?!

Post by alansal » Thu Jul 09, 2015 2:08 pm

Hello everyone,

I need to read a couple of holding registers (from 700 to 750) and write some (800 to 850) using MB over TCP/IP. This also has to be done as a master.


As always many many thanks in advance...

Kind Regards,

(tyou)

alansal
Posts: 58
Joined: Mon Sep 24, 2007 1:03 pm
Location: Somewhere in Europe

Re: S7-315 2PN/DP with CP343-1 Lean as Modbus TCP/IP Master?

Post by alansal » Tue Jul 14, 2015 2:16 pm

Can at least someone help for Modbus Master?!

Besides is there anyone that can tell me how many modbus communications can a 315-2PN/DP have?


Thanks in advance....

Umencho
Posts: 501
Joined: Mon Jul 16, 2007 12:28 pm
Location: Europe

Re: S7-315 2PN/DP with CP343-1 Lean as Modbus TCP/IP Master?

Post by Umencho » Wed Jul 15, 2015 5:48 am

https://support.industry.siemens.com/cs ... nglish.pdf

The maximum number of Modbus clients that can be connected to port 502
of the CPU is CPU-specific and can be found in the technical data of the
CPU.

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