Siemens SIMATIC S7-300 Reference Manual page 155
Programmable logic controllers module data
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- Manual (676 pages) ,
- Installation and operating manual (356 pages) ,
- Hardware and installation manual (256 pages)
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Technical specifications of the SM 322; DO 8 x 24 VDC/2 A
Dimensions and Weight
Dimensions W x H x D
(in millimeters)
Weight
Data for Specific Module
Supports clocked
operation
Number of outputs
Length of cable
•
Unshielded
•
Shielded
Voltages, Currents, Potentials
Rated load voltage L+
Total current of the outputs
(per group)
•
Horizontal configuration
Up to 60 _C
•
Vertical configuration
Up to 40 _C
Isolation
•
Between channels and
backplane bus
•
Between the channels
In groups of
Permitted potential difference
•
Between the different
circuits
Insulation tested with
Current consumption
•
From the backplane bus
•
From load voltage L+
(without load)
Power dissipation of the module typ. 6.8 W
Status, Interrupts, Diagnostics
Status display
Interrupts
Diagnostic functions
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
40 x 125 x 117
Approx. 190 g
No
8
max. 600 m
max. 1000 m
24 VDC
max. 4 A
max. 4 A
Yes
Yes
4
75 VDC / 60 VAC
500 VDC
max. 40 mA
max. 60 mA
Green LED per channel
None
None
Data for Selecting an Actuator
Output voltage
•
At signal "1"
Output current
•
At signal "1"
Rated value
Permitted range
•
At signal "0"
(leakage current)
Output delay (for resistive load)
•
From " 0" to "1"
•
At "1" to "0"
Load resistor range
Lamp load
Parallel connection of
2 outputs
•
For redundant triggering of
a load
•
To increase performance
Triggering a digital input
Switch rate
•
For resistive load
•
Inductive loads
according to IEC 947-5-1,
DC 13
•
For lamp load
Limit (internal) of the inductive
circuit interruption voltage up
Short-circuit protection of the
output
•
Threshold on
Digital Modules
min. L + –0.8 V
2 A
5 mA to 2.4 A
max. 0.5 mA
max. 100 ms
max. 500 ms
12 W to 4 kW
max. 10 W
Possible (only outputs
of the same group)
Not possible
Possible
max. 100 Hz
max. 0.5 Hz
max. 10 Hz
typ. L + (–48 V)
Yes, electronic
typ. 3 A
3-71
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