Siemens SIMATIC S7-1500 Manual page 18

Connecting
3.1 Wiring and block diagram
Wiring: 2-wire and 3-wire connection in DI operating mode
The example in the following figure shows the terminal assignment of the IO‑Link
Master CM 8xIO‑Link communication module in DI operating mode.
①
②
③
④
⑤
M
L+
Figure 3-2 Terminal assignment for 2-wire and 3-wire connection in DI operating mode
18
Reverse polarity protection
Backplane bus interface
IO-Link circuitry
Sensor, 3-wire connection
Sensor, 2-wire connection
Ground
Supply voltage 24 V DC
U Supply voltage (positive)
Sn
RUN Status display LED (green)
ERROR Error display LED (red)
PWR Power LED (green)
C/Qn Port n
C Port status/channel error LED (green/red)
n
Q LED channel status in standard DI mode
n
(green)
Communication module IO-Link Master CM 8xIO-Link (6ES7547-1JF00-0AB0)
Equipment Manual, 08/2022, A5E45488510-AB