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Change usr_param_data of Profibus DP slave with Step7

Created by: patrick.rommeluere at: 10/1/2012 11:12 AM (4 Replies)

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10/1/2012 11:12 AM	Rate (0)
patrick.rommeluere Regular Member Joined: 10/1/2012 Last visit: 7/12/2024 Posts: 9 Rating: (0)	Hello, I need to reparametrize a Profibus DP slave from the user program in runtime. A vacuum pump supplier provied me a Profibus compliant device with its GSD file. I have no problem to communicate with this slave using a 315-2DP CPU. I can read and write data in cylcic mode using the input and output buffers. But I also need to acces the data in the configuration buffer without having to stop^the CPU and use the hardware config software inclued in step7 According to what I read previously on this forum, I tried to use the SFB52 ans SFB53 built in functions. I'm not sure I put the right values of ID and INDEX. In the attached test program, let's say I want to read the SetPoint_B_Mantissa value. I put DW#16#8064 as INDEX (the smaller logical adress of my module is 100decimal, and it is a mixed input/output module) I didn't know what value to put as ID but I made a loop to test values from 0 to 255. Unfortunately, I can't get any data, whith various error codes. I have a Profibus slave connected to my CP315-2DP and I would like to change the 14 bytes of the usr_param_data with step7 Is there any SFC to do this? For the moment, the only way I found to change these bytes is to edit them with the HWconfig. Attachment usr_param_data.jpg (75 Downloads)
	Last edited by: patrick.rommeluere at: 3/11/2013 4:00 PM Last edited by: patrick.rommeluere at: 10/1/2012 4:24 PM
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3/11/2013 4:02 PM	Rate (0)
patrick.rommeluere Regular Member Joined: 10/1/2012 Last visit: 7/12/2024 Posts: 9 Rating: (0)	Attached is my test program. Attachment 4uhv.zip (61 Downloads)

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3/11/2013 4:03 PM	Rate (0)
patrick.rommeluere Regular Member Joined: 10/1/2012 Last visit: 7/12/2024 Posts: 9 Rating: (0)	And here is a description of the data Attachment Manuel_4UHV.pdf (67 Downloads)

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5/9/2013 5:31 AM	Rate (0)
AndrewZ Posts: 30 Rating: (7)	patrick.rommeluere Hello, I'm not sure I put the right values of ID and INDEX. In the attached test program, let's say I want to read the SetPoint_B_Mantissa value. I put DW#16#8064 as INDEX (the smaller logical adress of my module is 100decimal, and it is a mixed input/output module) I didn't know what value to put as ID but I made a loop to test values from 0 to 255. -------------------------------------------------------------- Hi Patrick, Sorry for my previous comments, I was wrong, the DW#16#8064 was ok, because you try output module, therefore you are right to set bit 15,TRY recreate a new DB plug onto RECORD. I wish may help.
AndrewZ Posts: 30 Rating: (7)	Last edited by: Slave126 at: 5/10/2013 5:10 AM
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5/16/2013 12:06 PM	Rate (0)
patrick.rommeluere Regular Member Joined: 10/1/2012 Last visit: 7/12/2024 Posts: 9 Rating: (0)	I still have problems with these data transferts. When using the SFB52, I have several different errors: 00700200 or 00700100 with ERROR bit =False C080A200 or C080B000 with ERROR bit =True C080C300 with ERROR bit =True for every INDEX>3 I wonder if the Profibus Slave is DPV1 compliant. There is no mention about this in the manual. Is there a way to see it in the GSD file?

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