Quick-Response Inputs (Cpm1/Cpm1A Only) - Omron CPM1 Programming Manual

Quick-response Inputs (CPM1/CPM1A Only)

!Caution The analog setting may change with changing temperatures. Do not use the
2-6

Quick-response Inputs (CPM1/CPM1A Only)

Quick-response Operation
analog adjustment controls for applications that require a precise, fixed set-
ting.
CPM1/CPM1A Program Example
The following ladder program uses the CPM1/CPM1A's analog settings. The
analog setting in SR 250 (0000 to 0200 BCD) is determined by adjusting ana-
log adjustment control 0. This value is used to adjust the timer's set value from
0.0 to 20.0 seconds.
Start condition
TIM 000
The CPM1/CPM1A have quick response inputs that can be used to enable
inputting shorter signals.
All 10-point CPU Units have 2 quick-response input terminals and the 20-,
30-, and 40-point CPU Units have 4 quick-response input terminals. The
same terminals are used for quick-response inputs and interrupt inputs.
Quick-response inputs have an internal buffer, so input signals shorter than
one cycle can be detected. Signals with a pulse width as short as 0.2 ms can
be detected, regardless of their timing during the PC cycle.
Overseeing
processes
Input signal
(00003)
IR 00003
CPU Unit
10-point CPU Units
20-, 30-, 40-point CPU Units
SR 250 is specified as
TIM
000
the timer's set value.
01003
Program I/O Overseeing
execution refreshing processes
One cycle
Input bits
IR 00003 to IR 00004
IR 00003 to IR 00006
Section 2-6
Program I/O
execution refreshing
Min. input pulse width
0.2 ms
133