Siemens SIMATIC Manual page 87

3.11 Digital input module SM 321; DI 16 x 24 VDC; with hardware and diagnostic interrupts (6ES7321-7BH01-0AB0)
The default settings apply if you have not set any parameters in STEP 7.
Table 3- 10 Parameters of SM 321; DI 16 x DC 24 V
Parameters
Enable
•
Diagnostic interrupt
•
Hardware interrupt
Input delay/voltage type
Diagnosis encoder supply missing
•
Wire break
Hardware interrupt trigger
•
Positive edge
•
Negative edge
Allocating the sensor supplies to channel groups
The module's two sensor supplies power the two channel groups: Inputs 0 to 7 and inputs 8
to 15. You also configure the diagnostics for the encoder supply in these channel groups.
Assigning interrupt parameters to channel groups
The table below shows which channels you can group for interrupt processing.
The channel group number is required to program SFC parameters in the user program.
Table 3- 11 Assigning interrupt parameters to the inputs of SM 321; DI 16 x DC 24 V
Parameters...
•
Hardware interrupt (triggered at the positive, nega-
tive, or both edges)
•
Diagnostic interrupt for wire break
•
Diagnostic interrupt for missing encoder supply
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
Range of values Default
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
Programmable in the following
channel groups
0 and 1
2 and 3
4 and 5
6 and 7
8 and 9
10 and 11
12 and 13
14 and 15
0 to 7
8 to 15
Digital modules
Parameter Scope
type
dynamic Module
static Module
static Channel group
dynamic Channel group
Channel group number
0
1
2
3
4
5
6
7
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