10-610.3 Time Constant ProcessingThe input time constants for 16 points of the CPU input X0 to XF can be set by the system registers 430to 433.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 contactXn = Image memory of input XnNote:-- If the partial update instruction is executed for the input in the time constant processing, the timeconstant processing will be invalid, and the input status at the time will be read out and set.The input signal of X contact is retrieved at the timing of the normal I/O update.- The time constant processing can be performed for the input other than X0 to XF (add-on cassettes orexpansion 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 beenspecified.Input time constant setting function and applicable modelsSystem registerNo.Control unit inputI/O No.Applicable modelC10/C14/C16 C32/T32/F32430 X0 to X3 A A431 X4 to X7 A A432 X8 to XB N/A A433 XC to XF N/A AA: Available N/A: Not available
