Count input
Instruction
operation
(Power on)
Counted
Not counted
● Be careful when using this instruction with an instruction that changes the order of instruction
execution such as MC - MCE or JP - LBL (1 to 6, shown below), because the operation of
the instruction may change depending on the timing of the instruction execution and count
input.
1) MC - MCE instructions
2) JP - LBL instructions
3) LOOP - LBL instructions
4) CNDE instruction
5) Step ladder instructions
6) Subroutine instructions
■
Mechanism of down counter operation
● This is an example when the U constant is used to specify the set value. See below for the
operation when specifying the set value area number. (This example shows a case in which
“100” is specified for the counter.)
1) When the operation mode is switched to RUN or the power is turned ON in the RUN mode,
the counter set value is transferred to the set value area "CS" with the same number.
2) At the trailing edge of the reset input, the value in the set value area "CS" is preset to the
elapsed value area "CE."
3.20 CT (Down Counter)
WUME-FP7CPUPGR-12 3-55
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