Digital Output Module Sm 422; Do 16 X Dc 24 V/2 A; (6Es7422-1Bh11-0Aa0) - Siemens SIMATIC S7-400 Reference Manual

4.14 Digital output module SM 422; DO 16 x DC 24 V/2 A;
(6ES7422-1BH11-0AA0)
Properties
SM 422; DO 16 x DC 24 V/2 A has the following features:
● 16 outputs, isolated in two groups of 8
● Output current 2 A
● Rated load voltage 24 V DC
The status LEDs indicate the system state even if the front connector is not connected.
Special points to note when commissioning
Digital output module SM 422; DO 16 x DC 24 V/2 A, order number 6ES7422-1BH11-0AA0,
differs from digital output module SM 422; DO 16 x DC 24 V/2 A, order number
6ES7422-1BH10-0AA0, in the following feature:
To commission the module, it is not necessary to supply each group of 8 outputs with load
voltage (e.g. connection of 1L+ and 3L+). The module is fully functional even if only one group
is supplied with L+.
Note
Any switch-off of all outputs by switching off a single L+ supply implemented with the previous
module 6ES7422-1BH10-0AA0 is no longer possible.
S7-400 Automation System Module Data
Reference Manual, Ausgabe 11/2016, A5E00850736-08

4.14 Digital output module SM 422; DO 16 x DC 24 V/2 A; (6ES7422-1BH11-0AA0)

Digital modules
129