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

Product description
2.2

I/O expansion module EXM 438-1

2.2.1

Application and design

Application
Design
10 x LED
Fig. 2-4 Mechanical design of the I/O EXM 438-1 expansion module
2-16
Designation
I/O expansion module EXM 438-1
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.
Analog I/O and
X1
incremental encoder connections
Incremental encoder connections
X2
Binary I/O and absolute value
X3
encoder connections
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
7
6
5
4
3
2
1
OFF
S3
Application Module FM 458-1 DP - User Manual
A5E01078222-02
ON
Edition 03.2009