Siemens SIMATIC S7-300 Reference Manual page 199
Programmable logic controllers module data
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- Manual (676 pages) ,
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Technical specifications of the SM 323; DI 8/DO 8 x 24 VDC/0.5 A
Dimensions and Weight
Dimensions W x H x D
(in millimeters)
Weight
Data for Specific Module
Supports clocked
operation
Number of inputs
Number of outputs
Length of cable
•
Unshielded
•
Shielded
Voltages, Currents, Potentials
Rated load voltage L+
Number of inputs that can be
triggered simultaneously
•
Horizontal configuration
Up to 60 _C
•
Vertical configuration
Up to 40 _C
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
Inputs in groups of
Outputs 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. 3.5 W
Status, Interrupts, Diagnostics
Status display
Interrupts
Diagnostic functions
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
40 x 125 x 117
Approx. 200 g
No
8
8
max. 600 m
max. 1000 m
24 VDC
8
8
max. 4 A
max. 4 A
Yes
Yes
8
8
75 VDC / 60 VAC
500 VDC
max. 40 mA
max. 40 mA
Green LED per channel
None
None
Data for Selecting a Sensor
Input voltage
•
Rated value
•
For signal "1"
•
For signal "0"
Input current
•
At signal "1"
Input delay
•
At "0" to "1"
•
At "1" to "0"
Input characteristic curve
Connection of Two-Wire
BEROs
•
Permitted bias current
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)
•
At "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 load according to
IEC 947-5-1, 13 DC
•
For lamp load
Limit (internal) of the inductive
circuit interruption voltage up
Short-circuit protection of the
output
•
Threshold on
Digital Modules
24 VDC
13 to 30 V
–30 to 5 V
typ. 7 mA
1.2 to 4.8 ms
1.2 to 4.8 ms
According to
IEC 61131, type 1
Possible
max. 1.5 mA
min. L + (–0.8 V)
0.5 A
5 mA to 0.6 A
max. 0.5 mA
max. 100 ms
max. 500 ms
48 W to 4 kW
max. 5 W
Possible (only outputs
of the same group)
Not possible
Possible
max. 100 Hz
max. 0.5 Hz
max. 10 Hz
L + (–53 V), typ.
Yes, electronic
1 A, typ.
3-115
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