Mpi Parameterization Of The Hhu - Siemens SINUMERIK 840Di Manual

5 MPI Communication
5.6 Handheld unit (HHU)
5.6.3

MPI parameterization of the HHU

Setting the MPI
parameters
Data transfer rate
5-154
The relevant parameters for the MPI communication of the HHU:
S
MPI address
S
Data transfer rate
S
IDLE time
are set using DIP switches. The relevant DIP switches S1 and S2 are integrated
in the HHU.
To check or modify the parameters, disconnect the HHU from mains. After loos-
ening the fastening screws, you can remove the HHU front plate.
ON OFF
S1
S2
Fig. 5-10 Settings required on the HHU for SINUMERIK 840Di
The data transfer default setting must be changed from 187.5 kbaud to
1.5 Mbaud. To do so, set switch 3 of DIP switch S1 to ON.
Notice
To run the HHU on the MPI bus of the SINUMERIK 840Di, the data transfer rate
has to be set to 1.5 Mbaud.
ON OFF
Reserved
4
1.5 Mbaud
3
S1
2 IDLE time
100msecs
1
4
Default MPI
3
address 15
S2
2
1
 Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
06.03
D