S7-200 Modbus Slave

[marcelodsl 0]

Dears, I´m need of a example of S7-200 in Modbus Slave using the freeport... If anybody have a application running without the library of SIEMENS please, send to me... Thaks Marcelo Lima

[lorenz2512 0]

Hello, look heresiemens it's the 7. example.

[marcelodsl 0]

Hi lorenz2512, Thank you! I try this program and now I can do Modbus Slave Communication with S7-200. Marcelo Lima

[Crossbow 295]

Siemens sells an add-on instruction library for the S7-200 that includes Modbus and USS (their drive protocol). Might be worth looking into?

[schva 0]

Hi All; Which communication protocols integrated to S7-200 and which communication protocols using by modules.

[Crossbow 295]

You already asked the question once. Please wait for answers instead of replying to a thread which has been unused since 2005.