F 5220 (0625)
269
Gate time measuring
In the mode gate time measuring the module counts the incoming pulses over a parameteri-
zable gate time (n
∗ 50 ms).
The gate time is a variable type UINT entered in steps of 50 ms. The gate time range is
0...65,535 (0...3276.75 s).
Cycle independent output switching with comparison operation
The output on the module is independent of the PES cycle time. It switches off when used for
pulse counting if the parameterized value is reached (resolution from value 0...16,500,000) or
when used for gate time measuring when the number of the parameterized pulses do not come
in.
The switching off value is parameterizable at the function block HF-CNT-3 as type DINT.
Recognition of rotation direction
The rotation direction depends on the signal sequence of counter input and direction input.
There has to be a phase shift between them:
Figure 4: Application for clockwise rotation
If the direction of rotation pulse is leading, the function block shows a counter-clockwise rota-
tion. If the pulse is lagging, there is a clockwise rotation. There is the possibility by parameter-
ization to count only the pulses of one direction of rotation.
Test connector Z 7208
For testing the functions of the counter module F 5220 the test plug Z 7208 can be fixed on the
module instead of the normal front cable plug. The plug generates signals to check the func-
tion.
The plug is connected with L+ and L- to the supply voltage for the concerning slot.
counter
input
direction
input
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