41
Counter Reset Conditions
Section 4-10
4-10 Counter Reset Conditions
The count value can be reset with the internal Reset Bit, external control input
IN1, and counter input Z. There are 12 counter reset modes as shown in the
following table. Counter reset modes are set with bits 08 to 15 of words m+1
and m+2.
Word m+1 is for counter 1 and word m+2 is for counter 2.
Counter Reset Mode
Counter 1 Example
Abbreviations Used in
Table
I:
Internal Reset Bit
E:
External control input IN1
Z:
Counter input Z
1 to 11: Counter reset modes
In the following table, when two or more conditions are combined, they are
treated as a logical AND. For example “Z, E, I” means that the count value will
be reset when counter input Z is H, external control input IN1 is L, and internal
Reset Bit is 1.
0 to 11 (Modes 0 to 11)
Input
Counter reset condition and timing
Internal Reset Bit
0
1
Not reset
Counter input Z + external
control input IN1 + internal
Reset Bit
2
3
Counter input Z + external
control input IN1
4
5
Counter input Z + internal
Reset Bit
6
7
External control input IN1 +
internal Reset Bit
8
9
(I)
Reset
(I)
(E)
(Z)
Reset
(I)
(Z)
(E)
(I)
.
.
Reset
(Z)
(E)
(I)
(E)
(Z)
(I)
.
.
(Z)
(E)
Reset
(E)
(Z) .
(E)
(Z)
(Z)
(E)
Reset
.
(Z)
(I)
Reset
(Z) (I)
.
(Z)
Reset
(Z)
(E)
(I)
Reset
(E) (I)
.
(E) (I)
(E)
(I)
Reset
.
Содержание C200H-CT021
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