I/O Expansion Module Exm 438-1; Application And Design - Siemens SIMADYN D FM 458 User Manual

2.3

I/O expansion module EXM 438-1

2.3.1 Application and design

Application The EXM 438-1 expansion module provides additional digital 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.
Design
10 x LED
Fig. 2-6 Mechanical design of the I/O EXM 438 expansion module
Application Module FM 458 - User Manual
6DD1904-0AE0 Edition 12.2001
Designation
I/O expansion module EXM 438-1
Analog I/O and
X1
incremental encoder connections
Incremental encoder connections
X2
Digital I/O and absolute value
X3
encoder connections
Product description
Order No.
6DD1607-0CA1
Switches S1 to S3 for incremental encoder
setting for Switch signal level 0 V or 7,0 V
(incremental encoder documentation)
S1
8
S2
7
6
5
4
3
2
1
ON OFF
(0 V) (7,0 V)
S3
2
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