Siemens 6ES7131-6BF00-0DA0 - Page 30

Counting operating mode (CNT)
4.1 Connecting
Digital input module DI 8x24VDC HS (6ES7131‑6BF00‑0DA0)
30 Manual, 03/2015, A5E35243810-AA
Wiring: 3-wire connection
The figure below shows an example of pin assignment for the DI 8×24VDC HS digital input
module on the BaseUnit BU type A0 with AUX terminals (3-wire connection).
①
3-wire connection
②
Color-coded labels CCxx (optional)
③
Supply voltage filter circuit (only available with light BaseUnit)
DI
n
Input signal, channel n
L+
n
Encoder supply, channel n
DC 24 V
Supply voltage L+ (infeed only with light BaseUnit)
M
Ground
1A ... 10A
AUX terminals
P1, P2, AUX Internal self-configuring voltage buses
Connection to the left (dark BaseUnit)
Connection to the left interrupted (light BaseUnit)
Figure 4-2 Pinout and block diagram for 3-wire connection of encoders