06.03
5.6 Handheld unit (HHU)
5-154
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
5.6.3
MPI parameterization of the HHU
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.
1
2
3
4
1
2
3
4
ON OFF
S1
S2
ON
OFF
S1
S2
Reserved
1.5 Mbaud
Default MPI
address 15
D
IDLE time
100msecs
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.
Setting the MPI
parameters
Data transfer rate
5 MPI Communication
Содержание SINUMERIK 840Di
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