Digital Modules
4-72
S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07
Technical Specifications of the SM 422; DO 32
24 VDC/0.5 A
Programming package
Associated programming
package
As of STEP 7 V 2.0
Dimensions and Weight
Dimensions W
H
D
(in millimeters)
25
290
210
Weight
Approx. 600 g
Data for Specific Module
Number of outputs
32
Length of cable
•
Unshielded
•
Shielded
600 m
1000 m
Voltages, Currents, Potentials
Power rated voltage of the
electronics L+
24 VDC
Rated load voltage L+
24 VDC
Aggregate current of
the outputs (per supply group
of 8 outputs)
Up to 40
C
Up to 60
C
Max. 4 A
Max. 2 A
Isolation
•
Between channels and
backplane bus
Yes
•
Between the channels
No
Permitted potential difference
•
Between the different
circuits
75 VDC / 60 VAC
Insulation tested with
•
Channels against
backplane bus and load
voltage L+
500 VDC
•
Load voltage L+ against
backplane bus
500 VDC
Current consumption
•
From the backplane bus
•
Power supply and load
voltage L+ (no load)
Max. 200 mA
Max. 30 mA
Power dissipation of the
module
Typ. 4 W
Status, Interrupts, Diagnostics
Status display
Green LED per channel
Interrupts
None
Diagnostic functions
None
Data for Selecting an Actuator
Output voltage
•
At signal “1”
Min. L+ (-0,3 V)
Output current
•
At signal “1”
Rated value
Permitted range
0.5 A
5 mA to 0.6 A
•
At signal “0” (leakage
current)
Max. 0.3 mA
Output delay (for resistive
load)
•
From “ 0” to “1”
Max. 1 ms
•
At “1” to “0”
Max. 1 ms
Load resistor range
48
to 4 k
Lamp load
Max. 5 W
Parallel connection of 2
outputs
•
For redundant triggering of
a load
Possible (only outputs
of the same group)
•
To increase performance
Possible (only outputs
of the same group)
Triggering a digital input
Possible
Switch rate
•
For resistive load
Max. 100 Hz
•
For inductive load
to IEC 947-5-1, DC 13
Max. 2 Hz at 0.3 A
Max. 0.5 Hz at 0.5 A
•
For lamp load
Max. 10 Hz
Limit (internal) of the inductive
circuit interruption voltage up
to
Typ. – 27 V
Short-circuit protection of the
output
•
Threshold on
Electronically cyclic
Typ. 0.7 A to 1.5 A
1)
A supply group always consists of eight adjacent
channels starting with channel 0. Channels 0 to 7, 8 to
15, 16 to 23 and 24 to 32 therefore form one supply
group.
