2/28/2018 9:39 AM | |
Joined: 4/28/2015 Last visit: 9/19/2024 Posts: 397 Rating: (56)
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Hello #dP, maybe you have to manipulate the analog output value in OB "MC-PostServo" and to split the analog output value into absolute value and algebraic sign. The handling of the analog output value you could find in system manual, chapter A.10.7. The algebraic sign you send to an digital output of the CPU, connected to the drive. |
2/28/2018 10:42 AM | |
Posts: 2826 Rating: (685) |
Hello. Thank you for your answer and I apologize for not being clear.
How to manipulate the result to the actual analog output is clear to me. This is not the source of my problem. Please see my previous post for a picture. The red encircled entry is a WORD specifically DB3.DBW0. It is this DB3.DBW0 that will be read in OB95 and manipulated to give an analog output. My question: Thanks for your attention. |
2/28/2018 3:18 PM | |
Joined: 4/28/2015 Last visit: 9/19/2024 Posts: 397 Rating: (56)
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Hello, I think, it is ranged like it is written in system manual in chapter A.10.7. System manual says: I would try to use SCL-command "WORD_TO_INT..." to see the value as an integer value... |
2/28/2018 3:42 PM | |
Posts: 2826 Rating: (685) |
Hello.
There is logic to your suggestion. Possibly huggy_d1 was thinking in the same way. Sincerely. |
Last edited by: #dP at: 2/28/2018 3:45:03 PM |
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3/2/2018 11:25 AM | |
Joined: 4/28/2015 Last visit: 9/19/2024 Posts: 397 Rating: (56)
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Hello, sorry for the delay. I did some research for you and I think, maybe this application example will help you using analog input or output. See the application example here: Otherwise, I think, it would be better for you to open a support request at "MC-PostServo / S7-1500 / Motion Control" to discuss your problems directly... Thank you very much! |
This contribution was helpful to1 thankful Users |
3/2/2018 12:25 PM | |
Posts: 2826 Rating: (685) |
Hello. Good to hear from you.
The application example you sourced for me looks like a very good one! Thank you. Just too bad I have no way to open an S7-1500 (TIA14) project. I have a Basic license.
Strange that the configuration hijack the analog output given by the motion control and then modifies it. This is not what I understood from the Motion Control V6 manual. But then the Motion Control shown in the example is V3(?). The manual I have read suggest to use a DB word tag. I will study the material further and consider making a support request. Thank you VERY MUCH for sourcing this very good demo on pre- and post-servo OBs. |
3/2/2018 3:38 PM | |
Posts: 2826 Rating: (685) |
Thank you for your patience and your help. |
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