Siemens DI 8x24VAC/48VUC BA Manual page 15

Wiring
3.1 Wiring and block diagram
Connection: 1-wire and 2-wire connection
The following figure shows the block diagram and an example of the terminal assignment of
the digital output module DI 8x24VAC/48VUC BA on the BaseUnit BU type U0 (1-wire and
2-wire connection).
①
1-wire connection
②
2-wire connection
③
Backplane bus interface
④
Input electronics
P1, P2, AUX Internal self-assembling voltage buses
Connection to left (dark-colored BaseUnit)
Connection to left interrupted (light-colored
BaseUnit)
.0 to .7 Channel status LED (green)
Figure 3-1 Wiring and block diagram for 1-wire and 2-wire connection of encoders
14
DI Input signal, channel n
n
L1 Encoder supply, channel n
L Supply 24 V AC / 48 V UC
N N-conductor connection
DIAG Error or diagnostics LED (green, red)
PWR Power LED (green)
Digital input module DI 8x24VAC/48VUC BA (6ES7131-6CF00-0AU0)
Manual, 07/2018, A5E42285997-AA