Siemens SIMATIC User Manual

Digital modules
3.29 Digital output module SM 322; DO 8 x DC 24 V/ 0.5 A; with diagnostics interrupt; (6ES7322-8BF00-0AB0)
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
175
Wiring and block diagram of SM 322; DO 8 x DC 24 V/ 0.5 A
①
Group error display -red-
②
Channel number (0 ... 7)
③
Channel fault display -red- (F0 ... F7)
④
Status display -green-
⑤
Backplane bus interface
Figure 3-9 Wiring and block diagram of SM 322; DO 8 x 24 V DC / 0.5
Redundant load control
The output with series diode can be used for redundant load control. Redundant control
without external circuitry is possible using two different signal modules. Both modules must
be connected to the common reference potential M.
Note
It is not possible to detect external short
-circuits to L+ at output with series diode.

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)