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HOW S5 PROGRAM WORKS

Created by: Lei at: 3/12/2009 1:24 AM (8 Replies)

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3/12/2009 1:24 AM	Rate (0)
Lei Posts: 3 Rating: (0)	Could you please tell me how S5 work? Thank you very much for your help. Segment 30: O F 0.3 BEC = F 105.3 = F 105.1 = F 109.3 = F 109.1 = I 5.1 BE Segment 34: ON F 0.3 BEC = F 101.3 = I 4.5 = I 4.3 BE
Lei Posts: 3 Rating: (0)
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3/12/2009 10:45 AM	Rate (0)
kris Posts: 18 Rating: (0)	Hi Lei The S5 program shown by you is wrong. There can be only one "BE" statement in one block. Your program shows 2 such ststements. "BE" means Block End. No other statements are allowed after this. Kris.
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3/12/2009 11:18 AM	Rate (0)
StavrosGR Posts: 52 Rating: (4)	The BE are in different segments so i I dont think the program is wrong (On the other hand you might be right)
StavrosGR Posts: 52 Rating: (4)
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3/12/2009 2:52 PM	Rate (0)
UMENCHO Diamond Expert Joined: 3/21/2006 Last visit: 4/12/2023 Posts: 10221 Rating: (1176)	Hello There important is command BEC. Look at If RLO = 1, then BEC (block end conditional) interrupts the program scan in the current block and causes a jump to the block that called the current block. The program scan resumes with the first instruction that follows the block call. The RLO (= 1) is carried over from the terminated block to the block that called. If RLO = 0, then BEC is not executed. The RLO is set to 1 and the program scan continues with the instruction following BEC. In your case for segment 30.If F0.3 is "0"( RLO = 0), then F 101.3, I 4.5 and I 4.3 is set "1". For segment 34 the logic is opposite.

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3/13/2009 4:22 AM	Rate (0)
Lei Posts: 3 Rating: (0)	Umencho,Thank you very much indeed. I can understand: A F 0.3 BEC = I 0.2 BE. This is logic "AND". but O F 0.3 BEC = I 0.2 BE. This is logic "OR" condition. Do I need to do two "OR" conditions or one "OR" can do the function. O F 0.3 ON F 0.1 BEC = I 0.2 BE.
Lei Posts: 3 Rating: (0)
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3/13/2009 9:34 AM	Rate (0)
UMENCHO Diamond Expert Joined: 3/21/2006 Last visit: 4/12/2023 Posts: 10221 Rating: (1176)	Hello It's deppends from logic. When the program scan reach BEC, program "look at" RLO. If RLO is 0 then program scan continue with instructions after BEC. If RLO is 1, program scan is interupt. For me is better to put in "one OR". Hope this will helps. regards

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3/18/2009 11:22 PM	Rate (0)
Lei Posts: 3 Rating: (0)	Thank you Umencho, actually my question is : ON F 0.3 BEC. and AN F0.3 BEC. Will they be same function? Cheers.
Lei Posts: 3 Rating: (0)
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3/19/2009 8:34 AM	Rate (0)
UMENCHO Diamond Expert Joined: 3/21/2006 Last visit: 4/12/2023 Posts: 10221 Rating: (1176)	Hello I think, it's the same. regards

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3/23/2009 5:46 PM	Rate (0)
JMJ Posts: 487 Rating: (44)	Lei, This is correct. if you look at the way RLO is processed, there is not difference between an OR and AND instructions in the first line of a segment.
JMJ Posts: 487 Rating: (44)
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