How fast does the PLC scan my inputs? I have a sensor signal that turns on but the PLC does not seem to read it because it is on for a really fast time. Is there a way to increase the scan rate speed?
Hello, It is possible to change the period of the cyclic task that is executing your program, in the “PLCnext” branch of the project tree: ![2020 05 14 21 08 32]()
However, if your input is changing faster than (say) once every 10 milliseconds, your program may not be able to run fast enough to detect these changes on an AXC F 1152/2152. If this is your situation, then the solution depends on the application. If the input only changes (briefly) once every few seconds, for example, then a latching relay will help. If you want to count the input pulses, then a high-speed counter module will help. If you are able to give more details about the application, then we might be able to suggest a solution that works for you. ~ Martin.
