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Write a PLC program to measure the scan cycle (scans per second) of PLC continuosly. Share your solution along with your PLC scan cycle settings and the measured scan cycle value.
Happy coding! 😊
@twincontrols are you looking to read the Task Cycle time, for example, from PlcTaskSystemInfo.CycleTime or are you looking to see how long your task took to execute PlcTaskSystemInfo.LastExecTime?
I guess that scans per second would always be consistent with the CycleTime, unless you are seeing PlcTaskSystemInfo.CycleTimeExceeded. In which case you could recalculate your scans / second accordingly. I'd advise against allowing your task to exceed. Rather to increase the Task time to accommodate the actual time required, or move some lower priority code to a slower task.
@benhar-dev It is actually a simple challenge question to calculate how many cycle it takes a plc task in a second. For example, the plc task cycle time below is set to 10ms, therefore it will be executed 100 times in one second.
Thank you for mentioning the PlcTaskSystemInfo type. I make use of it in my programs sometimes.
@runtimevictor Thank you for sharing your solution! Could you also share your program output and the screenshot of PlcTask settings page?
Hi All,
Not sure if this is helpful, but I also like to measure the PLC code execution itself, the task related times encapsulate all the task related operations, like process data mapping updates for example, you can see more info in the TE1010 docus on infosys.
But to monitor execution times i use the Profiler block, call it before and after a code section to see how long it really took.