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Read out fault codes from MM4 connected on Profibus-DP
Created by: Joakim Waldau at: 12/3/2009 9:37 PM (3 Replies)
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| 12/3/2009 10:15 PM | |
Joined: 5/28/2008 Last visit: 12/23/2025 Posts: 4522 Rating:
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Dear Joakim Waldau, I am afraid, I do not think that you can transmit the error code via profibus to display on the HMI. But you can monitor that there's a fault. Then you have to go to the drive and to see the fault code from your AOP / BOP and clear it. There's a FC to control the MM4 via profibus. Please find it in the following link: MICROMASTER 4 & SINAMICS G Function block (FC14) to control an MM4 via Profibus-DP Regards, |
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Ayman Elotaify |
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| 12/3/2009 11:15 PM | |
Joined: 9/27/2006 Last visit: 12/24/2025 Posts: 12472 Rating:
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Hello Joakim; Ayman is basically correct, there is no included mechanism for transmission of the fault codes of a MM4 over Profibus, However (and there is almost always a "however" clause) Siemens proposes an application, using Profibus and DrivesES, which includes a special function that will read out the fault buffer of a MM4. See here for the application: http://support.automation.siemens.com/WW/view/en/23322610 The function that would be of interest here is described as: FB38 = DEV_FLT3: Reads-out the fault buffer of a MICROMASTER 4xx Once the data has been read in to the PLC (Using the appropriate UDT provided) then it should be an easy matter to read the fault data i the HMI program. Hope this helps, Daniel Chartier |
Last edited by: dchartier at: 12/3/2009 11:16 PM |
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| 12/4/2009 9:17 AM | |
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Posts: 160 Rating:
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Hi, You can read out the current fault number, value or any other such parameter cyclically by using the PKW channel of configured PPO structure. This is alsohow the DriveES Simatic Package achieves this. Have a look at the Profibus ModuleOperating Instructionsfor the MicroMaster on how to achieve this. Refer to section 3.4 http://support.automation.siemens.com/WW/view/en/6586565 The parameter to read is Parameter P947 |
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