Handheld terminal HT 6
Prerequisites for start-up
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
The HT 6 (Handheld Terminal with 6" screen diagonal) is a compact operator
component consisting of an HMI and a machine control panel component.
Fig. 5-15 Handheld terminal HT 6 front side
The following hardware components are required to start up the HT 6:
The distributor box incorporates the MPI module interface, the HT 6 interface,
as well as a terminal block for connecting EMERGENCY STOP, enable keys,
handwheel and 24V power supply. For the distributor box, see Section 3.3,
HT 6 connection cable
The HT 6 is connected to the distributor box using the HT 6 cable. For the HT 6
connection cable, see Section 3.3, page 3-131.
MPI bus cable
Under no circumstances may the MPI bus cable contain an integrated bus ter-
minating resistor, since a bus terminating resistor is already integrated in the HT
6. For the MPI cable, see Section 3.3, page 3-131.
5 MPI Communication
5.7 Handheld terminal HT 6