Siemens SINUMERIK 840D sl Manual page 34

General information and networking
1.3 Connecting
Pin
12
13
14
15
Note
The handwheels can either be operated with TTL or differential signals.
You set the signal type using S1 (wire bridge) on the COM board.
The handwheels are supplied with 5 V ± 5% and 100 mA via the interface.
Contour and velocity specification via handwheel are not supported.
Interfaces for direct keys
X11 on the operator panel (OP) fronts can be used to fetch the state of the direct keys. The
connection of a 20-pin ribbon cable allows the direct keys to evaluate the following components:
● Direct key module (DTM)
● X70 in the machine control panels (MCP, MPP) and the handwheel connection module
(HAM)
● X205 on the Thin Client Unit (TCU)
The signals are then forwarded to the control over the various communications networks. Note
that DTM and HAM can be operated only with PROFIBUS DP.
Figure 1-7
34
Name
N.C.
N.C.
N.C.
N.C.
Assignment of the direct keys to the vertical softkeys of an operator panel front
Type Meaning
- Not connected
- Not connected
- Not connected
- Not connected
Operator panel front: OP 012
Manual, 09/2016, A5E36371591B