Siemens SIMATIC ET 200AL - Page 239

Digital input module DI 8x24VDC 8xM8 (6ES7141-5BF00-0BA0)
12 Manual, 02/2016, A5E32349579-AC
Wiring
3
3.1
Terminal and block diagram
The following figure shows an example of the pin assignment of signal outputs with 2- and
3-wire connection.
①
2-wire connection
X30
Infeed of the ET-Connection
②
3-wire connection
X31
Loop-through of the ET-Connection
③
DI circuit
1L+
Supply voltage 1L+ (non-switched)
④
Microcontroller
1M
Ground 1M (non-switched)
⑤
ET-Connection interface
2L+
Load voltage 2L+ (switched)
⑥
Internal supply voltage
2M
Ground 2M (switched)
X10 to X17
Channels 0 to 7
1U
S
24 V encoder supply
X80
Infeed of supply voltages
DI
n
Input signal
X81
Loop-through of supply voltages
DI
Channel status LEDs (0 to 7) (green)
DIAG
LED diagnostic status (red/green)
Image 3-1 Terminal and block diagram