Siemens SIMATIC S7-300 Module data Reference Manual

Digital Modules
3-107
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Terminal assignment and block diagram of the SM 322; DO 8 x Rel. 230 VAC/5 A
Channel
number
Status display -green
L+
24 V
M
L+
M
L+
M
L+
M
M
L+
M
L+
M
L+
M
L+
L+
M
M
Backplane bus interface
L+
1)
Connection possibility for contact supply
I
aggregate current
v8 A for Ta v30 C
I
aggregate current
v5A for Ta v60 C
1)
1)
1)
Figure 3-34 Module View and Block Diagram of the SM 322; DO 8 x Rel. 230 VAC/5 A
Operation with safe electrical extra-low voltage
When using relay output module 322-1HF10 with safe and electrically isolated
extra-low voltage, take the following special characteristic into account:
If a terminal is operated with a safe and electrically isolated extra-low voltage, the
horizontally adjacent terminal must be operated at a rated voltage of not more
than 120 VUC. With operation at voltages greater than 120 VUC, the creepages
and clearances of the 40-pin front connector do not meet the SIMATIC
requirements for safe electrical isolation.
If one of the two horizontally adjacent termi-
nals is operated with a safe electrical extra-
low voltage, the adjacent terminal must be
operated at not more than UC 120 V.
Figure 3-35 Special Characteristic for Operation with a Safe Electrical Extra-Low Voltage

Siemens SIMATIC S7-300 Module data Specifications

General

Series	S7-300
Manufacturer	Siemens
Protection Class	IP20
System	SIMATIC S7-300
Digital Inputs	Varies by module
Digital Outputs	Varies by module
Analog Inputs	Varies by module
Analog Outputs	Varies by module
Central Processing Unit	Varies by CPU model
Supply Voltage	24V DC or 120/230V AC
CPU Type	Varies (e.g., CPU 312, CPU 315, etc.)
Memory	Varies by CPU model
Communication Interfaces	MPI, PROFIBUS
Programming Languages	LAD, FBD, STL, SCL, GRAPH
Operating Temperature	0°C to 60°C
Storage Temperature	-40°C to 70°C
Relative Humidity	10% to 95% (non-condensing)