Siemens SIMATIC User Manual

Digital modules
3.11 Digital input module SM 321; DI 16 x 24 VDC; with hardware and diagnostic interrupts (6ES7321-7BH01-0AB0)
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
87
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
Range of values
Default
Parameter
type
Scope
Enable
• Diagnostic interrupt
• Hardware interrupt
Yes/No
Yes/No
No
No
dynamic
Module
Input delay/voltage type 0.1 ms (DC)
0.5 ms (DC)
3 ms (DC)
15 ms (DC)
20 ms (DC/AC)
(DC) static Module
Diagnosis encoder supply missing
• Wire break
Yes/No
Yes/No
No
No
static Channel group
Hardware interrupt trigger
• Positive edge
• Negative edge
Yes/No
Yes/No
No
No
dynamic Channel group
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...
Programmable in the following
channel groups
Channel group number
• Hardware interrupt (triggered at the positive, nega-
tive, or both edges)
• Diagnostic interrupt for wire break
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
1
2
3
4
5
6
7
• Diagnostic interrupt for missing encoder supply
0 to 7
8 to 15
-

Siemens SIMATIC Specifications

General

Product type designation	SIMATIC
CPU	Varies by model
Memory	Varies by model
Input/Output	Varies by model
Communication	Varies by model
Programming Language	STEP 7
Operating Temperature	0°C to 60°C (varies by model)
Protection Class	IP20
Category	Programmable Logic Controller (PLC)