8/11/2019 6:45 AM | |
Joined: 9/9/2015 Last visit: 8/27/2024 Posts: 727 Rating:
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Dear Tekabi, The error message is coming from a function block named "CPU_RT", it is to observe cycle load. When you exceed its limit, it will come out with the alarm "Net Time consumption of all OBs exceeds Max Limit" I think you have put too many blocks in one OBs, and some of them took a too long time to process two suggestions here to troubleshoot. 1. in the Same OB runtime group, (runtime group editor), arrange the Digital Input and Analog input at the beginning of the runtime group, just drag and drop to the front. Then arrange the digital output and Analog output at the back. 2. If the above method not works, separate the runtime group, put Analog input (slower inputs like temperature related instruments) to slower runtime group. Please see session 8.1.8 AS resource utilization for more information. Download the manual below. |
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8/12/2019 2:31 AM | |
Joined: 9/9/2015 Last visit: 8/27/2024 Posts: 727 Rating:
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yea, move to OB3X group. For Example, if you have temperature Signals IW120, TT240, you can move the chart runtime group from OB33 to OB32. something like this. Hope it helps |
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8/13/2019 4:26 AM | |
Joined: 9/9/2015 Last visit: 8/27/2024 Posts: 727 Rating:
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See above answer and hope it helps. Attached with CPU RT manual extract from Basic Library AttachmentCPU_RT.pdf (93 Downloads) |
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8/16/2019 7:41 AM | |
Joined: 9/9/2015 Last visit: 8/27/2024 Posts: 727 Rating:
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1- one of runtime groups in ob1 is highlighted by green colour. what is the meaning of that? is that inactivated?? [Jaz]: It is insertion position pointer. There are two types of pointers, the first is runtime group insertion position pointer (predecessor) and the second is block insertion position pointer . You can right click -> predecessor for Insertion position or press on the OBXX or blocks, press Shift+F11 to set the group/blocks to predecessor. It means, the next CFC chart you created or the next blocks you insert, it will be placed inside this group/blocks. 2- some of blocks in ob1 and in as_restart are identical. why? [Jaz]: I am not sure what you mean by this. Could you take pictures/screenshot? 3- I need to professional controlling the runtime group editor, please. Is there a manual for this? [Jaz]: This is the link for the latest document for you. Check on Chapter 10.11 Defining runtime properties to get more information on runtime editor. CFC for SIMATIC S7 (V9.0 SP3) Here also attached with all the manuals in various version of PCS 7 for your information. Technical Documentation SIMATIC PCS 7 |
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4/17/2021 7:43 AM | |
Joined: 7/2/2018 Last visit: 8/1/2024 Posts: 16 Rating:
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Hi, Have you found any solution? My rack failure will have net time alarm come and go. |
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