Siemens SIMATIC ET 200AL System Manual page 376

Configuration modes for digital inputs/outputs
3.2 Wiring
3.2 Wiring
3.2.1 Terminal and block diagram
The figure below shows an example of the pin assignment of signal inputs with 2-wire and
3-wire connection and of signal outputs in the configuration modes for digital inputs and
outputs.
①
DI/DQ circuit (1L+ non-switched)
②
Microcontroller
③
Monitoring
④
ET-Connection interface
⑤
Internal supply voltage
⑥
DI/DQ circuit (2L+ switched)
⑦
Parameterized as inputs: 2-wire connection
⑧
Parameterized as outputs
⑨
Configured as input: 3-wire connection
⑩
Configured as output
⑪
Configured as input: 2-wire connection
X10 to X17 Channels 0 to 15
X80 Infeed of supply voltages
Figure 3-1 Wiring and block diagram of configuration modes for digital inputs and outputs
16
X81
X30
X31
1L+
1M
2L+
2M
1U
S
2U
S
DIQ
n
DIQ
DIAG Diagnostic status LED (red/green)
PWR LED supply voltage 2L+ (green)
Digital input/Digital output module DIQ 16x24VDC/0.5A 8xM12 (6ES7143-5AH00-0BA0)
Loop-through of supply voltages
Infeed of the ET-Connection
Loop-through of the ET-Connection
Supply voltage 1L+ (non-switched)
Ground 1M (non-switched)
Load voltage 2L+ (switched)
Ground 2M (switched)
24 V encoder supply
24 V encoder supply
Input/output signal
LEDs channel status (0..15) (green)
Manual, 09/2017, A5E38688112-AB