12/7/2018 12:06 PM | |
Joined: 9/30/2016 Last visit: 8/15/2024 Posts: 914 Rating: (6) |
Please also see the screenshots. I am sending a analog value from the PLC to the drive in a project. In the PLC the value is written to PQW4162 in FB1033 (NW11-13). But how is this value sent to the drive? And how is is received in the drive and put on the correct parameter (I know that the number in this case is 2457 (0.15 *16384) which will be converted to 15 % which is used as a start value for the motor torque. I THINK I have seen parameter P2900 and P2901 being used as manually typed in values for the start torque but I am not sure about this. I would have thought it would be the same parameter the value from the PLC would be sent to but I cannot see if this is the case? AttachmentST.zip (306 Downloads) |
12/7/2018 1:15 PM | |
Joined: 9/30/2016 Last visit: 8/15/2024 Posts: 914 Rating: (6) |
Thank you Christoph and Technology Team for answering. Christoph: It is programmed with "Free telegram configuration" as per the screenshot. How do you know this: "the baseadress of the device is 4150 so the Data are transfered in the 7th word of the the telegram which is configured between PLC and Drive" Technology Team I should probably have mentioned that I am not connected to the drive when I am making this trace and taking the screenshots that is probably why there is no value on the address - would it otherwise be readable in that view? It is true that the value is written to word 8 (again per the screenshot) but how do I interpret the HEX 0000 (and 3FFFF = 63 255) and how is r2050 connected to word 8? It IS indeed a winder and I can see from the text that it IS connected to p1475 which IS the start torque so that is OK. I am almost sure I saw another 2 other parameters used for the start torque yesterday (for manually typed in values for respectively forward and backwards). With this single parameter the value -2457 is sent when it is for a backwards start.
AttachmentST2.zip (304 Downloads) |
Last edited by: xmnj at: 12/7/2018 1:29:39 PM |
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