25 HIGH-SPEED INPUT/OUTPUT FUNCTION
25.1 High-speed Counter Function
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■FX5S/FX5U/FX5UC CPU module
• Input
The following functions occupy inputs of the high-speed input/output function.
*1 If used simultaneously with another function, the input logic of the other function is applied.
*2 When external preset input and external enable input are used, the number of usable channels is decreased depending on the counter
type.
• Output
The following functions occupy outputs of the high-speed input/output function. The following functions cannot be combined
with other high-speed input/output functions.
*1 When positioning is not used, the output devices (Y) for which the positioning setting is enabled with parameters can be used as PWM
outputs or general-purpose devices having no parameter.
Do not specify an output device (Y) used by the high-speed input/output function as the output destination of the high-speed
comparison table. This may cause an unexpected operation.
Function Up to CH/axis Device Simultaneous useable function
Input interrupt
*1
Interrupt (Rising) 8 CH X0 to X17 The functions other than high-speed
counter (input A phase, input B phase)
Interrupt (Falling)
Interrupt (Rising + Falling)
Interrupt (Rising) + Pulse Catch Cannot be combined
High-speed counter Input A phase 8 CH
*2
X0 to X17
Input B phase
Input external preset Input interrupt
Input external enable
Pulse width measurement 4 CH X0 to X7 Input interrupt
Positioning Near-point dog signal 4 axis X0 to X17 • Input interrupt
• Zero signal
Zero signal 4 axis X0 to X17 • Input interrupt
• Near-point dog signal
Interrupt input signal 1 (Normal mode) 4 axis X0 to X17 Input interrupt
External start signal 4 axis X0 to X17 Input interrupt
Function Up to CH/axis Device
PWM
*1
4 CH Y0 to Y7
Positioning PULSE 4 axis Y0 to Y3
SIGN Y0 to Y17
CW 2 axis Y0, Y1
CCW Y2, Y3
Clear signal 4 axis Y0 to Y17
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