Siemens SIMATIC ET 200SP Manual page 19

Pin assignment of the BaseUnit
The table below shows the pin assignment, using the BaseUnit BU15-P16+A0+2B as an
example.
Table 3- 1 Pin assignment of the BaseUnit BU15-P16+A0+2B
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Technology module TM PosInput 1 (6ES7138-6BA00-0BA0)
Manual, 02/2014, A5E33015755-AA
Signal name
incremental encoder
with
signal N
1 A or D Encoder signal A
3 /A or /D Encoder signal /A
5 B or C Encoder signal B
7 /B or /C Encoder signal /B
9 N Encoder
signal N
11 /N Encoder
signal /N
(RS422
only)
2 DI0
4 DI1
8 DQ0
10 DQ1
6 —
12 —
13 —
Supply voltage, encoder supply and ground
15 24VDC
14 M
16 M
L+
M
RS422/TTL
without with
signal N direction
signal
Counting signal A
Counting signal /A
(RS422 only)
Direction
signal B
Direction
(RS422 only) signal /B
(RS422
only)
Digital output DQ0
Digital output DQ1
24 V encoder supply
Ground for encoder supply, digital inputs and digital outputs
DC 24V supply voltage
Ground for supply voltage
Designation
RS422/TTL pulse encoder
without up/down
direction
signal
Up counting
signal A
Up counting
(RS422 only) signal /A
(RS422
only)
— Down
counting
signal B
Down
counting
signal /B
(RS422
only)
—
—
Digital input DI0
Digital input DI1
—
—
—
Wiring
3.1 Pin assignment
SSI
absolute
encoder
SSI data
signal DAT
SSI data
signal
/DAT
SSI clock
signal CLK
SSI clock
signal
/CLK
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