Siemens Simatic M7-400 Reference Manual page 192

Digital Modules
4.19 Digital Output Module SM 422; DO 32
(6ES7422-1BL00-0AA0)
Characteristics
The SM 422; DO 32 x 24 VDC/0.5 A has the following features:
• 32 outputs, isolated in a group of 32
• Power is supplied to 8 channels in groups.
• 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
• Each of these supply groups can be switched off separately by isolating L+,
however you have to take note of the common ground connection.
• 0.5 A output current
• 24 VDC rated load voltage
The status LEDs also indicate the system status even when the front connector is
not inserted.
4-70
S7-400, M7-400 Programmable Controllers Module Specifications
24 VDC/0.5 A;
A5E00069467-07