Siemens SIMATIC S7-1500 Manual page 27

Wiring
3.2 RS422 encoder signals
View
Channel 1
Note
Potential jumpers may not be inserted in the front connector.
26
Signal name
RS422 incremental en-
with
signal N
21 +CH1.A/D Encoder signal +A
22 -CH1.A/D Encoder signal -A
23 +CH1.B/C Encoder signal +B
24 -CH1.B/C Encoder signal -B
25 +CH1.N Encoder
signal +N
26 -CH1.N Encoder
signal -N
27 5VDC
28 M
29 24VDC
30 M
31 DI1.0
32 DI1.1
33 —
34 —
35 DQ1.0
36 DQ1.1
37 —
38 M
39 - —
40
Designation
coder
without with direction
signal N signal
Counting signal +A
Counting signal -A
Direction signal
+B
Direction signal
-B
Encoder supply 5 V DC
Ground for encoder supplies and digital inputs
Encoder supply 24 V DC
Ground for encoder supplies and digital inputs
Digital input DI0
Digital input DI1
Digital output DQ0
Digital output DQ1
Digital output ground
Technology module TM PosInput 2 (6ES7551-1AB00-0AB0)
RS422 pulse encoder
without direc-
tion signal
— Down counting
— Down counting
—
—
—
—
—
—
Manual, 06/2018, A5E03982218-AB
Up/
Down
Up counting
signal +A
Up counting
signal -A
signal +B
signal -B