Siemens SIMATIC S7-300 Reference Manual page 389

Terminal connection diagram and block diagram of the
Fault indicator – red
SF
Figure 4-54 Module View and Block Diagram of the Analog Output Module SM 332; AO 2 12 bits
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
Internal
DAC
supply
Isolation
SF
Backplane
bus
interface
Analog Modules
SM 332; AO 2 x 12 bits
Current
output
L +
24V
QI
0
CH0
M
ANA
QI
1
CH1
M
ANA
M
M
Voltage
outputs
QV
0
S
0 +
CH0
S
0*
M
ANA
QV
1
S
1 +
CH1
S
1*
M
ANA
4-183