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S7 Graph - Timers in Action

Created by: hshen-sync at: 7/1/2013 7:28 PM (5 Replies)

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7/1/2013 7:28 PM	Rate (0)
hshen-sync Posts: 18 Rating: (1)	Dear Experts I am trying to use the timer in one of the step's action in my S7 Graph code. I have followed the instruction manual on how to define the timer in the action. I defined a timer in the attched file (T200). Can someone please help me on how to actually use this timer? I want to use its timing value (for comparing used in transition and time of the multiple steps), timer timing bit and timer done bit. I couldnt figure out the format for the above parameters. It looks like a standard S5 timer, which should have a BCD output. But T200.BCD does not work. Much appreciated! Attachment S7 Graph Timer.pdf (690 Downloads)
hshen-sync Posts: 18 Rating: (1)
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7/1/2013 8:33 PM	Rate (0)
AMAZINGAHMED Gold Member Joined: 8/27/2006 Last visit: 10/22/2024 Posts: 719 Rating: (88)	shenhao610 Dear Experts I am trying to use the timer in one of the step's action in my S7 Graph code. I have followed the instruction manual on how to define the timer in the action. I defined a timer in the attched file (T200). Can someone please help me on how to actually use this timer? I want to use its timing value (for comparing used in transition and time of the multiple steps), timer timing bit and timer done bit. I couldnt figure out the format for the above parameters. It looks like a standard S5 timer, which should have a BCD output. But T200.BCD does not work. Much appreciated! The step having the timer pauses until the timer expires... that's it.
	The more you know, The more you know that you don't know
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7/2/2013 8:07 AM	Rate (0)
hshen-sync Posts: 18 Rating: (1)	Hi Ahmed Thank you for the reply! I can use the step timer for timing of each step. Can you please tell me what timer to use to time the elapsed period of a sequencer? I have a lot of sequencers in one of the FB. I need to display on HMI the elapsed time when the sequencer is activated. Thank you.
hshen-sync Posts: 18 Rating: (1)
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7/2/2013 9:29 AM	Rate (0)
AMAZINGAHMED Gold Member Joined: 8/27/2006 Last visit: 10/22/2024 Posts: 719 Rating: (88)	shenhao610 Hi Ahmed Thank you for the reply! I can use the step timer for timing of each step. Can you please tell me what timer to use to time the elapsed period of a sequencer? I have a lot of sequencers in one of the FB. I need to display on HMI the elapsed time when the sequencer is activated. Thank you. When I used S7 Graph (only once), I used to set bits in the Graph and used those bits to start timers in LAD program. When the timers expire, I use them to set the next Graph step. By this way, you can use normal timers to set their time and monitor the elapsed time as well from HMI.
	The more you know, The more you know that you don't know
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7/2/2013 10:20 AM	Rate (0)
SolutionFinder Posts: 559 Rating: (87)	Dear shenhao610, You can use stepNo.U as a time value of your current running step. If you want to use to diplay in SCADA or HMI, you can find it from that perticular DB where yu have defined to call the garph FB. it is defined as G7S[stepno.].U. You can use it.
SolutionFinder Posts: 559 Rating: (87)
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7/2/2013 10:48 AM	Rate (0)
hshen-sync Posts: 18 Rating: (1)	Hi SolutionFinder Thank you for the help. I need two displays on HMI: Sequence Time and Step Time. I want a timer to time the elapsed period of a sequencer which is composed of more than 20 steps. I have a step timer for each step as Step.T. I need a Sequence timer to time how long this entire process was activated. I need to activate the timer in the first step of the sequencer and de-activate it in the last step of the sequencer. I cant simply add all the step timers timing duration, since I have jump steps, loop back and also activate steps between sequencers. If there is no way to do the sequencer timing in S7 graph, I will use Ahmed's suggestion.
hshen-sync Posts: 18 Rating: (1)
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