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motion control write drive parameter

Created by: hamed12580 at: 5/27/2019 3:37 PM (3 Replies)

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5/27/2019 3:37 PM	Rate (0)
hamed12580 Posts: 241 Rating: (1)	hi experts is it possible to write drive parameter by using MC_writeparameter technology function block even if we have not use message telegram with pkw word in communicating with profibus? thx for helping
hamed12580 Posts: 241 Rating: (1)
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5/27/2019 3:47 PM	Rate (0)
Mister T Silver Member Joined: 4/28/2015 Last visit: 3/21/2023 Posts: 393 Rating: (52)	Hello, are you using SIMATIC S7-31xT controller, like S7-315T or S7-317T(F)? As it is written in the manual, with the function "MC_WriteParameter", you could only write technology parameter on the CPU. Manual SIMATIC Engineering Tools S7 Technology (09/2017) https://support.industry.siemens.com/cs/ww/en/view/30119663 See chapter 6.8.5. If you want to write drive parameter, use function "MC_WriteDriveParameter". For more information, have a look to chapter 6.8.11. of the manual.

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5/28/2019 2:59 PM	Rate (0)
miami Platinum Member Joined: 8/31/2005 Last visit: 3/6/2023 Posts: 2194 Rating: (319)	Im my eyes: Yes, but with MC_WriteDriveParameter The parameter transfer is using acyclic communication. This runs independend to the process data. The 4 PKW words in the telegrams was a posibility to transfer parameter data through the cyclic process data. Now we have the acyclic commonication, it is not necessary any more to use this telegrams with PKW words.
	Last edited by: miami at: 05/28/2019 15:03:16
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5/29/2019 12:47 PM	Rate (0)
hamed12580 Posts: 241 Rating: (1)	thank you
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