Connecting; Pin Assignment - Siemens S7-1200 System Manual
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Also See for S7-1200:
- Operating instructions manual (132 pages) ,
- Programming manualline (74 pages) ,
- Manual (46 pages)
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15.2
Connecting
15.2.1
Pin assignment
For details about pin assignment, see the "IO-Link Master signal module" technical
specification in Appendix A (Page 934).
The following table shows the terminal assignments for the SM 1278 4xIO-Link Master:
Pin
X10
7
M
1
6
C/Q
1
5
L
1
4
RES
3
(functional earth)
2
M
1
L+
The following table contains illustrations of connection examples, where n = port number:
IO-Link operating mode
Note
Connected sensors must use the device supply provided by the Master module L
connection.
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
X11
X12
X13
M
M
M
2
3
4
C/Q
C/Q
C/Q
2
3
L
L
L
2
3
4
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
RES
Operating mode DI
Notes
M
: ground to slave
•
n
C/Q
: SDLC, DI or DQ
•
4
n
L
: 24 VDC to slave
•
n
M: ground
•
L+: 24 VDC to Master
•
RES: reserved; may not be assigned
•
SM 1278 4xIO-Link Master
15.2 Connecting
BaseUnits
A1
Operating mode DQ
n
819
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