Parameterising 2/4xcounter module
Encoder with GATE (modes 36 ... 38)
12
Parameter setting
12.4
12.4.19
l
12.4-53
EDSPM-TXXX-3.0-04/2004
12.4.19 Encoder with GATE (modes 36 ... 38)
epm-t164
Fig. 12.4-72 Terminal assignment of the 2/4xcounter in the modes 36 ... 38
The modes 36 to 38 offer two encoders that can be pre-assigned with a starting
value.
The modes differ in the number of edges which are evaluated:
Mode 36: 1 edge
Mode 37: 2 edges
Mode 38: 4 edges
See signal characteristics.
During the counting process, a HIGH level must be applied to input IN1 / IN4
(GATE). With a LOW level the counter content is frozen.
When the counter reaches zero, the output OUT0 / OUT1 is set to HIGH level for
at least 100 ms, even if the counter continues to count. When the counter stops
at zero, the output OUT0 / OUT1 remains on the HIGH level.
Terminal assignment
A/ B signal
GATE signal
OUT signal
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