Specifications

Parameters/address space
4.1 Parameter
DI 32x24VDC HF digital input module (6ES7521-1BL00-0AB0)
Manual, 04/2015, A5E03485935-AE
19
Parameter
Range of values
Default setting
Parameter
reassignment
in RUN
Range of effectiveness with con-
figuration software, e.g. STEP 7
Integrated in the
hardware catalog
as of STEP 7,
V13 SP1 with
HSP 0118 or
GSD file
PROFINET IO
GSD file
PROFIBUS DP
Start value
0 ... 4294967295**
0
Yes
Channel
---
Behavior when a
counting limit is
exceeded
• Stop counting
• Continue counting
Stop counting Yes Channel ---
* If you enable diagnostics for multiple channels, you will receive an alarm storm on failure of the supply voltage because
each enabled channel will detect this fault.
You can prevent this message burst 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.