Explanation Of The Parameters Of The Counting Mode - Siemens Simatic series Manual

Parameters/address space
4.1 Parameter
Parameter
Comparison value
Start value
Behavior when a count-
ing limit is exceeded
* If you enable diagnostics for multiple channels, you will receive an alarm surge on failure of the supply voltage because
each enabled channel will detect this fault.
You can prevent this alarm surge by enabling diagnostics for one channel only.
** Comparison value or start value must be less than or equal to the value for the high counting limit.
4.1.5

Explanation of the parameters of the Counting mode

Missing supply voltage L+
Enabling of the diagnostics, with missing or too little supply voltage L+.
Wire break
Enabling diagnostics if the line to the encoder is interrupted.
Input delay
This parameter can be used to suppress signal disruptions. Changes to the signal are only
detected if they are constantly pending longer than the set input delay time.
Hardware interrupt
Specifies whether or not a hardware interrupt is generated by the event "Comparison event
occurred for DQ" (rising edge at STS_DQ).
20
Range of values
0 ... 4294967295**
0 ... 4294967295**
Stop counting
•
Continue counting
•
Default Parameter
setting reassignment
in RUN
1 Yes
0 Yes
Stop Yes
counter
DI 16x24VDC HF Digital Input Module (6ES7521-1BH00-0AB0)
Range of effectiveness with con-
figuration software, e.g. STEP 7
Integrated in the GSD file
hardware catalog PROFIBUS DP
as of STEP 7,
V13 SP1 with
HSP 0118 or
GSD file
PROFINET IO
Channel ---
Channel ---
Channel ---
Manual, 08/2018, A5E03485952-AG