FPΣ User's Manual
7.3 High-Speed Counter Function
107
7.3 High-Speed Counter Function
The high-speed counter function counts the input signals and sets the desired output to TRUE
or to FALSE when the target value is reached.
Setting the system registers
In order to use the high-speed counter function, it is necessary to set the inputs in the system
registers.
1.
2.
3.
Procedure
1. Double-click "PLC" in the navigator
2. Double-click "System Registers"
3. Double-click "High-Speed Counter, Pulse-Catch Input, Interrupt Input"
4. Select the desired inputs for each channel
7.3.1 Count Input Modes
Input mode Input signals
1
Input: X0 (X1, X3, or X4)
2
Count
Incremental
TRUE
FALSE
1 2 3 4 n-3 n-2 n-1 n0
Decremental
n-1 n-2 n-3 n- 4 3 2 1 0n
TRUE
FALSE
1
Inputs: X0+X1 (X3+X4)
2
Count
Incremental input: CW
TRUE
FALSE
TRUE
FALSE
n-1
0 1 2 n
Two-phase
Decremental input: CCW
n-3n-1n n-2
TRUE
FALSE
TRUE
FALSE
2
1
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