Siemens 6ES7131-6BF00-0DA0 - Page 14

Operating mode DI
3.1 Wiring up
Digital input module DI 8x24VDC HS (6ES7131‑6BF00‑0DA0)
14 Manual, 03/2015, A5E35243810-AA
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
L+
n
Encoder supply, channel n
②
2-wire connection
L+
24 V DC (infeed only with light BaseUnit)
③
Backplane bus interface
DIAG
LED error or diagnostics (green, red)
④
Input electronics
.0 to .7
LED channel status (green)
⑤
Color-coded label CCxx (optional)
PWR
LED power (green)
⑥
Supply voltage filter circuit (only available with
light BaseUnit)
CNT LED operating mode Count (green)
M
Ground
OVS
LED operating mode Oversampling (green)
DI
n
Input signal, channel n P1, P2, AUX Internal self-configuring voltage buses
Connection to the left (dark BaseUnit)
Connection to the left interrupted (light BaseUnit)
Figure 3-1 Pinout and block diagram for 1 and 2-wire connection of encoders