Parameters Of Digital Input Modules - Siemens SIMATIC S7-400 Reference Manual

4.3.2

Parameters of digital input modules

Overview
The configurable digital input modules use a subset of the parameters and ranges of values
listed in the table below, depending on functionality. For information on subsets "supported"
by specific digital modules, refer to the chapter dealing with the relevant module. Do not forget
that some digital modules have different input delays after parameter assignment.
The defaults apply if you have not set any parameters in
Table 4-4
Enable
● Diagnostic interrupt
● Hardware interrupt
● Destination CPU for
Diagnostics
● Wire break
● No load voltage L+/sensor
Hardware interrupt trigger
● Positive edge
● Negative edge
Input delay
Reaction to error
Set substitution value "1"
If you use the module in ER-1/ER-2, you must set this parameter to "No" because the interrupt lines
1
are not available in ER-1/ER-2.
Only in the CR (central rack) is it possible to start up the digital modules with the default settings and
2
without support from HWCONFIG.
Channels not selected for substitute value "1" are assigned substitute value "0".
3
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08
Parameters of digital input modules
Parameters
1
1
interrupt
supply
4.3 Assigning parameters to digital modules
Value range Default
Yes/no No
Yes/no No
1 to 4 -
Yes/no No
Yes/no No
Yes/no No
Yes/no No
0.1 ms (DC) 3 (DC)
0.5 ms (DC)
3 ms (DC)
20 ms (DC/AC)
Set substitution SV
value (SSV)
Keep last value
(KLV)
Yes/no No
STEP 7 .
Parameter
2
type
Dynamic
Static
Static
Dynamic
Static
Dynamic
Dynamic
Digital modules
Scope
Module
Module
Channel
Channel
Channel
Module
Channel
3
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