The PLCs in the Modicon M340 range offer counting functions (downcounting, counting, counting/downcounting) by utilizing the application-specific counting modules.
Two counting modules are offered:
BMX EHC 0200 module with two counting channels and a maximum acquisition frequency of 60 kHz
BMX EHC 0800 module with eight counting channels and a maximum acquisition frequency of 10 kHz
Illustration
The following illustration shows a BMX EHC 0200 counting module:
The following illustration shows a BMX EHC 0800 counting module:
