Panasonic FP-X0 L30R - Time Constant Processing

9.3 Time Constant Processing
The input time constants for 16 points of the CPU input X0 to XF can be set by the system registers 430
to 437.
If this setting is specified, an operation like the equivalent circuit below will be performed.
By the setting, the noises or chattering of input will be removed.
CXn = Input signal of Xn contact
Xn = Image memory of input Xn
Note:
- The input signal of X contact is retrieved at the timing of the normal I/O update.
- If the partial update instruction is executed for the input in the time constant processing, the time
constant processing will be invalid, and the input status at the time will be read out and set.
- The time constant processing can be performed for the input other than X0 to XF (add-on cassettes or
expansion units) by the F182 (FILTR) instruction.
- The timer instruction is not used for the timer processing in this equivalent circuit.
- The time constant processing is invalid when the high-speed counter, pulse catch or interrupt has been
specified.
Input time constant setting function and applicable models
System
register No.
Control unit input
I/O No.
Applicable model
L14
L30
L40
L60
430 X0 to X3 A A A A
431
X4 to X7
N/A
A
A
A
432 X8 to XB N/A A A A
433
XC to XF
N/A
A
A
A
434 X10 to X13 N/A N/A A A
435
X14 to X17
N/A
N/A
A
A
436 X18 to X1B N/A N/A N/A A
437
X1C to X1F
N/A
N/A
N/A
A
A: Available N/A: Not available
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