Parameters Of Digital Output Modules; Diagnostics For Digital Modules; General Information About Diagnostic Messages - Siemens SIMATIC S7-400 Reference Manual

Digital modules

4.4 Diagnostics for digital modules

4.3.3

Parameters of digital output modules

Overview
The configurable digital output modules use a subset of the parameters and ranges of values
listed in the table below, depending on the functionality. For information on subsets "supported"
by specific digital modules, refer to the section dealing with the relevant module beginning with
section 4.7.
The defaults apply if you have not set any parameters in
Table 4-5
Enable
● Diagnostic interrupt
● Destination CPU for
Reaction to CPU STOP
Diagnostics
● Wire break
● Load voltage L+
● Short-circuit to M
● Short-circuit to L+
● Fuse blown
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
4.4 Diagnostics for digital modules
4.4.1

General information about diagnostic messages

Programmable and non-programmable diagnostic messages
Using the diagnostics function, we make a distinction between programmable and non-
programmable diagnostic messages.
88
Parameters of digital output modules
Parameters
Yes/no
1
1 to 4
interrupt
Substitute a val‐
ue (SV)
Keep last value
(KLV)
Yes/no
Yes/no
missing
Yes/no
Yes/no
Yes/no
Yes/no
Value range Default
No
-
SV
No
No
No
No
No
No
Reference Manual, Ausgabe 11/2016, A5E00850736-08
STEP 7 .
Parameter type
2
Dynamic
Static
Dynamic
Static
Dynamic
S7-400 Automation System Module Data
Scope
Module
Module
Module
Channel
Channel
3