Siemens S5-155U System Manual page 453

The 466 Analog Input Module
Setting the type of
measurement
Current/voltage measurement
for individual channel groups
9 - 82
Measurement with respect to ground/differential measurement
The type of measurement (with respect to ground or differential
measurement) is set with switch S9. The switch settings relate to the
locations on the module shown in Figure 9-27:
Type of Measurement
Measurement with respect to
ground
Differential measurement
If you have preset differential measurement on switch S9, two channel
groups of four channels each are available. You can configure each
channel group separately for current or voltage measurement. You set
this with switches S5, S6, S7 and S8. Switches S5 and S7 allow three
settings (left, midpoint and right); switches S6 and S8 allow two
settings (left and right). The switch settings relate to the locations on
the module shown in Figure 9-27:
Setting the current/voltage measurement for channel group I
Channel Group I
(Channels 0 to 3)
Current
Voltage
Setting the current/voltage measurement for channel group II
Channel Group II
(Channels 4 to 7)
Current
Voltage
Switch Setting S9
1 9
ON
OFF
1 9
ON
OFF
Switch S5 Switch S6
Switch S7 Switch S8
System Manual
C79000-B8576-C109-03