3/2/2007 3:52 PM | |
Joined: 4/24/2006 Last visit: 9/23/2024 Posts: 8742 Rating: (1168) |
Hi Daniel, Have you seen this faq: http://support.automation.siemens.com/WW/view/en/23992560 Perhaps it's usefull Best regards, Wizard |
3/2/2007 8:44 PM | |
Joined: 3/27/2006 Last visit: 5/16/2023 Posts: 90 Rating: (13) |
I use some small conversion FC's that a gentleman wrote for me. It converts an integer setpoint to S5Time format. See the attached library. The downside to this is you don't get a readout of the time as it counts down. Also the S5 timers have the extra problem of once the timer begins counting the preset time is ignored. For example if the time setpoint is 90 seconds at the instant the timer begins timing, changing the preset to 10 seconds has no affect on the timer. I suggest you build your own timers when you need the timer to respond to a change in preset or when you need to display the time countdown. A simple ADD_I (Add Integer) instruction with a 1-shot bit that pulses on time can be used to create your own timer. I'll be glad when Siemens fixes their timer issues. Another problem is there is not enough timers. I recently did a job with a CPU-317 and out of 512 possible timers I only have about 15 spare. And this was after I made my own timers for around 60 things. Good luck! AttachmentS5time_conversion_Harris.zip (1216 Downloads) |
"I never let a cowboy make the coffee." |
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