Siemens SIMATIC ET 200AL System Manual page 816

Wiring
3.1 Terminal and block diagram
The figure below shows an example of the pin assignment of signal inputs with 2-wire and
3-wire connection.
①
②
③
④
⑤
⑥
X10 to X17
X35
Figure 3-1
12
3-wire connection
2-wire connection
2-wire connection
DI circuit
Microcontroller
Internal supply voltage
Channels 0 to 7
IO-Link interface
Terminal and block diagram
IO-Link digital input module DI 16x24VDC 8xM12 (6ES7141-5AH00-0BL0)
1L+ Supply voltage 1L+ (non-switched)
1M Ground 1M (non-switched)
1U 24 V encoder supply
S
DI Input signal
n
DI Channel status LEDs (0 to 15) (green)
DIAG Diagnostic status LED (red/green)
Equipment Manual, 08/2021, A5E47926661-AB
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