Siemens SINUMERIK 840D sl TCU 30.3 Equipment Manual page 38

Connection
5.1 Pin assignment of the interfaces
16 digital inputs (5 V) can be fetched via the X11 connector.
Connector designation:
Connector type:
Max. cable length:
Table 5-7
Pin
1
...
16
17
18
19
20
16 digital inputs can be polled by the X70/X205/DTM connector.
Connector designation:
Connector type:
Max. cable length:
Table 5-8
Pin
1
...
16
17
18
19
20
The inputs are electrically isolated for MCP / MPP / HAM and DTM.
1)
2) For the TCU, it is evaluated whether the direct keys have been connected.
Power consumption: 100 mA for MCP / MPP / HAM; 500 mA for DTM
3)
Table 5-9
HIGH level:
Low level
38
X11
20-pin plug connector
0.85 m
Assignment of connector X11
Name
DT1
...
DT16
P5V
P5V
GND
GND
X70/X205/DTM
20-pin plug connector
0.85 m
Assignment of connector X70 (MCP, MPP, HAM) / X205 (TCU) / DTM
Name
DT1
...
DT16
P5V / CON1
2)
P5V / CON2
2)
GND
GND
Signal level
Type Meaning
Direct key 1
O ...
Direct key 16
+ 5 V (fused)
+ 5 V (fused)
V
Ground
Ground
Type Meaning
Direct key 1
I
1) ...
Direct key 16
+ 5 V input voltage
+ 5 V input voltage
V
Ground
Ground
5 V or open
<= 0.8 V
Equipment Manual, 03/2023, A5E40874197B AD
3)
3)
TCU 30.3