Siemens SIMATIC ET 200SP Manual page 17

Operating mode DI
3.1 Wiring up
Wiring: 1 and 2-wire connection
The figure below shows the block diagram and an example of pin assignment for the
DI 8×24VDC HS digital input module on the BaseUnit BU type A0 without AUX terminals (1
and 2-wire connection).
①
1-wire connection
②
2-wire connection
③
Backplane bus interface
④
Input electronics
⑤
Color-coded label CCxx (optional)
⑥
Supply voltage filter circuit (only available with
light BaseUnit)
M Ground
DI Input signal, channel n
n
Figure 3-1 Pinout and block diagram for 1 and 2-wire connection of encoders
16
L+ Encoder supply, channel n
n
L+ 24 V DC (infeed only with light BaseUnit)
DIAG LED error or diagnostics (green, red)
.0 to .7 LED channel status (green)
PWR LED power (green)
CNT LED operating mode Count (green)
OVS LED operating mode Oversampling (green)
P1, P2, AUX Internal self-configuring voltage buses
Connection to the left (dark BaseUnit)
Connection to the left interrupted (light Ba-
seUnit)
Digital input module DI 8x24VDC HS (6ES7131-6BF00-0DA0)
Equipment Manual, 11/2019, A5E35243810-AD