S7 for Raspberry Pi

contactform · 2016-04-21 12:00:45

S7 for Raspberry Pi, Ref.Code: REX-RPi-S7

Exactly which model S7 can you connect to? S7: 200, 300, 400, 1200, 1500?

tomáš čechura · 2016-04-22 11:13:31

It is possible to use REX on Raspberry Pi to communicate with all Siemens PLCs with Ethernet communication using S7 communication protocol. The Siemens Communication Processor can be external such as CP343/CP443 or internal (e.g. in 3XX-PN or 4XX-PN CPUs).

Regards, Tomas

jaroslav_sobota · 2016-04-29 11:53:11

All the newer PLCs (S7-1200, S7-1500) have Ethernet communication built-in so you can always connect to these.

rexpeter · 2016-10-18 21:31:09

Is it possible using a Serial Server and than use the S7 driver to connect to a S7-200 PLC serie? For instance an ADAM 4571 or similar type of device.
The S7-200 has by default only RS485 communication, but using such a serial server will add a TCP/IP port connection.
Would that work?

Regards,
Peter

jaroslav_sobota · 2016-10-19 10:31:02

Hi Peter,
unfortunatelly not. Siemens PLCs without Ethernet port do not support communication via S7 protocol.

Maybe you could program the S7-200 to act as Modbus slave and read the data via RS485?

Jaroslav

rexpeter · 2016-10-20 13:27:30

Thanks Jaroslav for the update on this. Than I don't have to give that a trial with the serial server.
I will try using ModBus.
Thanks for the advise.

Peter

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#1 2016-04-21 12:00:45