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V90 and s7 1200, how to read a parameter from drive

Created by: Vladich at: 1/25/2016 10:49 AM (14 Replies)

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1/25/2016 10:49 AM	Rate (1)
Vladich Posts: 14 Rating: (1)	Hello Nashwa, Can I ask you to send me an example how to read a parameter from drive Sinamics V90 with s7 1200 CPU 1214C DC/DC/DC with CB 1241 - communication module by uss protocol with this block USS RPM? The problem is that for this drive there is no enough information how to read parameters. I can send you the program if you want. Can you help? Thank you in advance Out Control Please send to me your program to can check it Best Regards Nashwa ------------------------------------------------------------------------------------------ Split from USS Protocol Instruction / USS_RPM_R /.
Vladich Posts: 14 Rating: (1)	Last edited by: Min_Moderator at: 1/25/2016 3:32:02 PM New subject after splitting
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1/25/2016 3:52 PM	Rate (1)
ChristophD Grandmaster-Expert Joined: 5/12/2006 Last visit: 12/20/2024 Posts: 22482 Rating: (3039)	Hello, you can take a look in the V20 application example, i think the V90 work with uss in the same way like the V20. https://support.industry.siemens.com/cs/ww/en/view/63696870 Regards Christoph

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1/25/2016 11:54 PM	Rate (0)
Jeff Casagrande Posts: 1529 Rating: (203)	The V90 is a different animal than the V20 and its USS interface is not compatible with the USS library. MODBUS may be a better way. I have my suspicions that Siemens did not even develop the V90. It looks more like a name-branded Yaskawa drive (or Mitsubishi).
Jeff Casagrande Posts: 1529 Rating: (203)
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1/26/2016 9:04 AM	Rate (0)
Vladich Posts: 14 Rating: (1)	I have talked to Siemens support in Bulgaria and they told me that I need to write my own code for communication between these devices. This is new for me, can you or someone else to post in LAD Or FBD an example how to do such communication. At least what instructions from TIA Portal v13 SP1 Update 5 I can use to facilitate my work. Thanks a lot, Best regards,
Vladich Posts: 14 Rating: (1)
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1/26/2016 10:04 AM	Rate (0)
Jeff Casagrande Posts: 1529 Rating: (203)	Read the V90 instruction manual (section 7.7.2 - MODBUS communication) to give you some ideas how to do this. If you can wait a few weeks, I'll be going through this exercise myself. Also, see this FAQ https://support.industry.siemens.com/cs/document/47756141/how-do-you-establish-a-modbus-rtu-communication-with-step-7-(tia-portal)-for-the-simatic-s7-1200?dti=0&lc=en-WW
Jeff Casagrande Posts: 1529 Rating: (203)	Last edited by: Jeff Casagrande at: 1/27/2016 12:17:20 AM
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1/27/2016 9:55 AM	Rate (0)
Vladich Posts: 14 Rating: (1)	Thanks to your quick reply, unfortunately I can't wait that long. I have read the whole forum, all the manuals for s7 1200, Sinamics V90, even for V20, because there are examples, however it is not even close to V90 regarding the hardware I have. For other products there is enough information how to configure the telegram and more important to which address you can write or from which you can read. This is the biggest problem in the instructions and manuals for this V90 there is no information from which address you can read. I need to read just the actual position of the axis. Actually in my project I have 4 Servo drivers and have to read from them the actual position. I hope that if I can read from one of them I should be able to read from all them.
Vladich Posts: 14 Rating: (1)
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1/27/2016 10:41 AM	Rate (0)
Jeff Casagrande Posts: 1529 Rating: (203)	Well, I guess you have two options. 1. Wait around until someone gives you code. Not reallyy likely. 2. Look at the FAQ and solve your own problem. You should be able to figure it out.
Jeff Casagrande Posts: 1529 Rating: (203)
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1/27/2016 11:04 AM	Rate (0)
William_B Posts: 5225 Rating: (1197)	..or post the question directly to Siemens Support if user's forum does not provide answers: https://support.industry.siemens.com/my/ww/en/requests#requests
William_B Posts: 5225 Rating: (1197)
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1/27/2016 11:54 AM	Rate (1)
Jeff Casagrande Posts: 1529 Rating: (203)	Thank you William_B. Unfortunately , the V90 is a China product and only the Chinese know the details. ***es me of too and I know the people there. Product was designed to compete with Mitsubishi and no one seems to communicate over serial links.
Jeff Casagrande Posts: 1529 Rating: (203)
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1/27/2016 1:10 PM	Rate (0)
Vladich Posts: 14 Rating: (1)	I am sure that I could write my own program for the correct telegrams, however I don't know at which address the servo driver is expecting telegram with a request for read, so "It...."(Servo driver) could understand what information should send back to PLC as a response to the request. And there is no such information in all manuals, brochures or other additional documentation related to Sinamics V90. So I am really confused, how to proceed further. When I have a solution I will post it! ;) Thank you for the support anyway! I wish you successful projects and all the best
Vladich Posts: 14 Rating: (1)
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