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NUMBER OF PID BLOCKS IN S7-1200 PLC

Created by: Seni at: 6/6/2013 10:39 PM (4 Replies)

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6/6/2013 10:39 PM	Rate (0)
Seni Posts: 25 Rating: (0)	HI ALL HOW MANY NUMBER OF PID BLOCKS CAN YOU DO ON S7-1200 PLC? THANKS A LOT.
Seni Posts: 25 Rating: (0)
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6/7/2013 4:03 AM	Rate (0)
hdhosseini Diamond Member Joined: 1/28/2009 Last visit: 10/11/2024 Posts: 6852 Rating: (1365)	chili sbo HI ALL HOW MANY NUMBER OF PID BLOCKS CAN YOU DO ON S7-1200 PLC? THANKS A LOT. Hello, For a starting point, you can try reading the following previously discussed threads (that is available with a simple search): Max number of PID loops in S7-1214C Pegaia some time ago Iwas inaworkshop where the "teacher" says something like that. Imediataly I download a program with more than 16 PID to "see what will happens", and it works. I don't remenber now how many PID I program at end, but I think that was 21. Without problem. At list while the presentation ran. This thema, remember me of the start of S7-300 whenwas in the catalog that the S7314 could just 16 PID run... PID isa subroutine, like any other. The limitstays principally insize of CPU memory, and runtime cycle. Best regards Hamid Hosseini
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6/7/2013 2:33 PM	Rate (0)
Seni Posts: 25 Rating: (0)	Hi Thanks a lot.... do we have information or reference on this, is it on the S7-1200 manual? or FAQ Thanks
Seni Posts: 25 Rating: (0)
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6/7/2013 2:51 PM	Rate (0)
Marcjan Platinum Member Joined: 4/22/2010 Last visit: 5/3/2024 Posts: 5697 Rating: (715)	Hello, Never seen any information on this subject. All there is was said in the thread refered to earlier. The limits are in the CPU memory and cycle time. Regards, Marcjan
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6/7/2013 2:57 PM	Rate (0)
hdhosseini Diamond Member Joined: 1/28/2009 Last visit: 10/11/2024 Posts: 6852 Rating: (1365)	chili sbo Hi Thanks a lot.... do we have information or reference on this, is it on the S7-1200 manual? or FAQ Thanks Hello, Just to add some information related to this topic.I also checked official control reference published by SIEMENS but I could not find such a discussion.S7-1200,as a solution in micro-automation serves to control small size machines and in such a machine you may not need regulation of several loops.When control loops increased, the machine or process would be really expensive and then we use more complex solutions such as S7 400 with fault tolerance and fail-safety options. Best regards Hamid Hosseini
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