Product Overview
1-2
FM 351 Positioning Module
C79000-G7076-C351-02
1.1 What is the FM 351?
The FM 351 positioning module is used in the S7-300 programmable logic
controller (PLC) for controlled positioning with rapid/creep feed speeds. The
module has two independent channels each of which can control a rotary or linear
axis. Each channel of the module supports an incremental or absolute encoder
(SSI).
You can operate a number of FM 351 positioning modules simultaneously.
Combinations with other FM/CP modules are also possible. A typical application is
the combination with an FM 352 electronic cam controller.
S7-300
CPU
FM 351
PC/PG
Configuration package with
parameter assignment dialogs,
blocks and manual
with user program and
blocks for the FM 351
Figure 1-1 Structure of a SIMATIC S7-300 PLC with an FM 351
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