Module-specific data
Number of outputs
32
Cable length
● unshielded
600 m
● shielded
1000 m
Voltage, current and potential
Rated supply voltage of electronics L+
24 V DC
Rated load voltage L+
24 V DC
Total current of outputs (per group)
● Up to 40°C
Maximum 4 A
● Up to 60°C
Maximum 2 A
Electrical isolation
● Between channels and backplane bus
Yes
● Between channels
Yes
In groups of
8
Permissible potential difference
● Between different circuits
60 V DC/30 V AC (SELV)
Insulation tested at
● Channels to backplane bus and load voltage L+
500 V DC
● Between outputs of different groups
500 V DC
Current consumption
● From backplane bus (5 V)
Maximum 200 mA
● Supply and load voltage L + (no load)
120 mA maximum
Module power loss
Typ. 8 W
Status, interrupts, diagnostics
Status display
Green LED per channel
Interrupts
● Diagnostic interrupt
Configurable
● Hardware interrupt
Configurable
Diagnostic functions
● Load voltage monitoring
Yes
● Group fault display
For internal fault
Red LED (INTF)
For external fault
Red LED (EXTF)
● Diagnostic information can be read out
Yes
Monitoring for
● Short circuit
> 1 A (typ.)
● Wire break
< 0.15 mA
Substitute values can be connected
Yes
Data for selecting an actuator
Output voltage
● For "1" signal
At least L+ (-0.8 V)
Digital modules
4.17 Digital output module SM 422; DO 32 x DC 24 V/0.5 A (6ES7422-7BL00-0AB0)
S7-400 Automation System Module Data
142
Reference Manual, Ausgabe 11/2016, A5E00850736-08