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How to create timers on Step 7

7/13/2023 4:09 PM	Rate (0)
manutenção_elétri... Posts: 1 Rating: (0)	Hi, I'm already using all my 511 timers of Step 7. But, I have to create a program and I need more. Is it possible create timers without using the clock?
manutenção_elétri... Posts: 1 Rating: (0)
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7/13/2023 4:46 PM	Rate (0)
qwazee Platinum Expert Joined: 3/30/2020 Last visit: 12/11/2025 Posts: 5656 Rating: (1083)	manutenção_elétrica154 Hi, I'm already using all my 511 timers of Step 7. But, I have to create a program and I need more. Is it possible create timers without using the clock? Assuming: Step7 V5.x is used; not Step7 V1x; not Edge. A comprehensive answer to your question can be found: [ LINK: How do you measure the time in STEP 7 V5.x? ]
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This contribution was helpful to 1 thankful Users dchartier

7/24/2023 8:52 AM	Rate (0)
Piotr.M Platinum Expert Joined: 6/24/2013 Last visit: 11/14/2025 Posts: 1696 Rating: (433)	Hi you can use SFB TON / TOF timers where setpoint and time is measured in ms and limitation is only memory size. each timer will need instance data block or multiple instance variable. SFB4 is TON (on-delay IEC timer)

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