06.03
5.5 MPI interface
5-148
Siemens AG, 2003. All rights reserved
SINUMERIK 840Di Manual (HBI) – 06.03 Edition
5.5
MPI interface
The MPI (multi-point interface) is a module for connecting custom made opera-
tor panels to a SINUMERIK 840Di.
To this aim, the module provides 3 I/O interfaces with a total of 64 digital outputs
with C-MOS level (5V).
Start-up of an Interface MPI module is to a large degree identical to start-up of a
machine control panel (MCP), Section 5.4, page 5-140.
Therefore, only the differences from an MCP start-up are explained below.
5.5.1
Parameterization of the MPI interface
The MPI module’s electrical connections and connections for MPI communica-
tion are made using the interfaces on the rear side of the module.
X231
LEDs1...4
X20
X10
X221
X211
H3
H1
H4
H2
S3
Power supply interface
S3 DIP switch
3
2
1
SHIELD
M24
P24
I/O interfaces
MPI interface
Connection
for equipotential
bonding conductor
SW version
x.x
SW
Fig. 5-7
Position of the interfaces on the rear side of the MPI module
For a detailed description of the electrical and mechanical design, as well as for
the interfaces of the MPI module, please refer to:
Use
Start-up
Electrical
connection
5 MPI Communication
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