Siemens S7-300 Manual page 7

Further information
You will find further information on clock synchronization in the online help system
of STEP 7, in the manual ET 200M Distributed I/O System and in the manual
Clock Synchronization.
1.2 Parameterizing the SM 321; DI 16
Parameter assignment
Section 3.3 of the reference manual describes how digital modules are generally
parameterized.
Parameters of the SM 321; DI 16
You will find an overview of the parameters that can be set for the SM 321;
DI 16
The default settings apply if you have not performed parameter assignment in
STEP 7.
Table 1 Parameters of the SM 321; DI 16
Parameter
Enable
S
Diagnostic interrupt
S
Hardware interrupt
Input delay/voltage type
Diagnosis
S
Sensor supply missing
S
Wire break
Trigger for hardware interrupt
S
Rising edge
S
Falling edge
Assignment of the sensor supplies to channel groups
The module's two sensor supplies supply two channel groups: inputs 0 to 7 and
inputs 8 to 15. In these channel groups you also parameterize the diagnosis for the
sensor supply.
Product Information on the Manual S7-300 Module Specifications, Edition 11/2002
A5E00213444-02
DC 24 V
DC 24 V, together with the default settings, in the following table.
DC 24 V
DC 24 V
Value Range Default
Settings
Yes/no No
Yes/no No
0.1 ms (DC) (DC)
0.5 ms (DC)
3 ms (DC)
15 ms (DC)
20 ms (DC/AC)
Yes/no No
Yes/no No
Yes/no No
Yes/no No
Para- Scope
meter
Type
Dynamic Module
Static Module
Static Channel
group
Dynamic Channel
group
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