Siemens SIMATIC FM 351 - Description of the Front Connector

Wiring the FM 351
4-4
FM 351 Positioning Module
C79000-G7076-C351-02
4.3 Description of the Front Connector
Front Connector
You connect the power supplies of the encoder and the digital outputs at the 20-pin
front connector (see Figure 4-2). The digital outputs and inputs assigned to the
channels are also connected.
Pinout of the Front Connector (X1)
Terminal Name Meaning Incremental Encoders Absolute
Encoders
1 1L+ 24 V DC auxiliary supply for the encoders
2 1M Encoder power supply ground
3 1I0 Channel 1: Digital input 0 Reference-point switch Not used
4 1I1 Channel 1: Digital input 1 Reverse switch Not used
5 1I2 Channel 1: Digital input 2 Enable input
6 1I3 Channel 1: Digital input 3 Not used
7 2I0 Channel 2: Digital input 0 Reference point switch Not used
8 2I1 Channel 1: Digital input 2 Reverse switch Not used
9 2I2 Channel 2: Digital input 2 Enable Input
10 2I3 Channel 2: Digital input 3 Not used
11 1Q0 Channel 1: Digital output 0
12 1Q1 Channel 1: Digital output 1
13 1Q2 Channel 1: Digital output 2
14 1Q3 Channel 1: Digital output 3
15 2Q0 Channel 2: Digital output 0
16 2Q1 Channel 2: Digital output 1
17 2Q2 Channel 2: Digital output 2
18 2Q3 Channel 2: Digital output 3
19 2L+ 24 V DC auxiliary supply for the load current
20 2M Load power supply ground