Siemens SIMATIC ST-1500 - Counter behavior at limits and gate start

Using the High_Speed_Counter technology object
3.5 Configuring the High_Speed_Counter
Counting, measurement and position detection
Function Manual, 12/2017, A5E32009889-AG
105
3.5.4.2
Counter behavior at limits and gate start
Reaction to violation of a counting limit
You can configure the following characteristics for violation of a counting limit (Page 25):
Reaction
Meaning
Stop counting If a counting limit is violated, counting is stopped
and the internal gate is closed. To restart count-
ing, you must also close and reopen the soft-
ware/hardware gate.
Continue counting
(default)
Counting continues either with the start value or
at the opposite counting limit, depending on the
additional parameter assignment.
Reset when counting limit is violated
You can reset the counter to the following values when a counting limit is violated:
Reset the value
Meaning
To start value
The counter value is set to the start value.
To opposite counting limit
(default)
The counter value is set to the opposite counting
limit.
Reaction to gate start
You can set the following Reaction to gate start (Page 29):
Reaction
Meaning
Set to start value
When the gate is opened, the counter value is set
to the start value.
Continue with current value
(default)
When the gate is opened, counting is continued
with the last counter value.