4
1 2
3
4
Counter status
Count pulses
Gate signal
Open
gate
Close
gate
Figure 2-4 Opening and closing a gate
Ending counting process with the gate stop function
You can end the counting process when counting with the SW gate and when counting with the
HW gate with the respective gate stop function. For this purpose you set the GATE_STP input
parameter of the FC CNT_CTRL.
This is how the FM 450-1 counts
2.2 Gate functions
Counter module FM 450-1
20 Equipment Manual, 03/2022, A5E03648739-AC