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Do someone have the modbus communicate to s7-200 sample?

Created by: hondog at: 6/4/2008 6:56 AM (2 Replies)

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6/4/2008 6:56 AM	Rate (0)
hondog Posts: 17 Rating: (0)	Dear everyone, i want to find the modbus communicate to s7-200 example programme, do anyone have this programme?thanks
hondog Posts: 17 Rating: (0)
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6/4/2008 1:10 PM	Rate (0)
Darius Platinum Expert Joined: 9/28/2005 Last visit: 11/5/2024 Posts: 2957 Rating: (242)	Hello, Just look at CPU S7-200 system manual's chapter 12. There you find all you need to get modbus working. If you want I can send you real example of working modbus, but I highly suggest you to read that chapter to understand what is going on. You can find manual here: http://support.automation.siemens.com/WW/view/en/1109582 Regards,
	Best regards, Darius
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6/26/2008 4:12 AM	Rate (0)
yesid.hernandez Posts: 11 Rating: (0)	Hi Darius, Have in mind that the chapter in the S7-200 manual uses a additional library for Micro/Win: STEP 7-Micro/WIN add-on Instruction library V1.1, control of drives (USS protocol) and data transmission via Modbus protocol, for STEP 7- Micro/WIN, V4 More information: https://www.automation.siemens.com/_en/s7-200/Products/03Software/microwin.html Or you can see this example: https://www.automation.siemens.com/microset/html_00/support/tipps/tt-kommunizieren.htm?HTTPS=REDIR In the Modbus RTU Slave for S7-200 CPU (Tip 41) you have a open source version of it, I think it is older than the Add-on´s. I have worked with the Library and worked ok, I did a communication with a Telemecanique PLC. Hope this helps.
yesid.hernandez Posts: 11 Rating: (0)
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