Panasonic FP-XH M8N16PD, User Manual

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24.2 Input Time Constant Setting Function
24-3
24.2 Input Time Constant Setting Function
24.2.1 Outline of Function

Actions when setting the input time constant processing
It is easy to set the time constant of the control unit input after changing the values of the
system registers 430 - 431 with the programming tool.
If this setting is carried out, it will run in accordance with the following equivalent circuit. Once
set, you can remove the input interference and vibration.
CXn Xn
S
CXn Xn
R
Timer processing Set value =
system register set value
Timer processing Set value =
system register set value
CXn=Xn contact input signal
Xn=input Xn image memory
• Receiving an input signal of the X contact can be performed by the common
I/O refresh time.
• For the input in the time constant processing, such as executing part of the
refresh instructions, the time constant processing is invalid, and the input
status at this time is read out for setting.
• If use the F182 (FILTR) instruction, the time constant processing can be set
even for the input outside the control unit (expansion unit).
•
Using the time processing in the equivalent circuit requires no time
instruction.
• For the setting to interrupt the high-speed counter or pulse catch, the time
constant processing is ineffective.

Input time constant setting function and applicable models
System register
number
Control unit
controller I/O number
Applicable models
430 X0 - X3 ○
431 X4 - X7 ○