Siemens SIMATIC S7-300 Module data - Page 192

Digital Modules
3-108
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Technical specifications of the SM 322; DO 8 x Rel. 230 VAC/5 A
Dimensions and Weight
Dimensions W x H x D
(in millimeters)
40 x 125 x 120
Weight Approx. 320 g
Data for Specific Module
Supports clocked
operation
No
Number of outputs 8
Length of cable
• Unshielded
• Shielded
max. 600 m
max. 1000 m
Voltages, Currents, Potentials
Rated supply voltage of the
relay L +
24 VDC
Total current of the outputs
(per group)
• Horizontal configuration
Up to 30 C
Up to 60 C
• Vertical configuration
Up to 40 C
max. 8 A
max. 5 A
max. 5 A
Isolation
• Between channels and
backplane bus
Yes
• Between the channels
In groups of
Yes
1
Permitted potential difference
• Between M
internal
and
supply voltage of the
relays
75 VDC / 60 VAC
• Between M
internal
and
supply voltage of the
relays and the outputs
250 VAC
• Between the outputs of the
different groups
500 VAC
Insulation tested with
• Between M
internal
and
supply voltage of the
relays
500 VDC
• Between M
internal
and
supply voltage of the
relays and the outputs
1500 VAC
• Between the outputs of the
different groups
2000 VAC
Current consumption
• From the backplane bus
• From supply voltage L+
max. 40 mA
max. 125 mA
Power dissipation of the
module
typ. 4.2 W