Product description
2-16 Application Module FM 458-1 DP - User Manual
A5E01078222-02 Edition 03.2009
2.2 I/O expansion module EXM 438-1
Designation Order No.
I/O expansion module EXM 438-1 6DD1607-0CA1
2.2.1 Application and design
The EXM 438-1 expansion module provides additional binary and analog
I/O as well as incremental- and absolute value encoders. Fast data
transfer with the FM 458 application module is realized via the internal
LE bus. The power supply is obtained via the P bus of SIMATIC S7-400.
It is not possible to directly transfer process data via the P bus.
To connect the 24V DC power supply of the binary inputs and outputs,
terminals 9 and 10 on the SU13 interface module must be used:
Terminal 9: 24V
Terminal 10: M
These terminals have been designed so that the polarity cannot be
interchanged.
X2
X1
X3
SIMATIC P-BUS
LE-BUS
S3
S1
10 x LED
8
7
6
5
4
3
2
1
OFF ON
Switches S1 to S3 for incremental encoder
setting for Switch signal level 0 V or 7,0 V
(incremental encoder documentation)
Analog I/O and
incremental encoder connections
Incremental encoder connections
Binary I/O and absolute value
encoder connections
Fig. 2-4 Mechanical design of the I/O EXM 438-1 expansion module
Application
Design
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