Siemens S7-1200 - Connecting; Pin Assignment

SM 1278 4xIO-Link Master
15.2 Connecting
S7-1200 Programmable controller
System Manual, 03/2014, A5E02486680-AG
819
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
X11
X12
X13
Notes
BaseUnits
7
M
1
M
2
M
3
M
4
• M
n
: ground to slave
• C/Q
n
: SDLC, DI or DQ
• L
n
: 24 VDC to slave
• M: ground
• L+: 24 VDC to Master
• RES: reserved; may not be assigned
A1
6
C/Q
1
C/Q
2
C/Q
3
C/Q
4
5
L
1
L
2
L
3
L
4
4
RES
RES
RES
RES
3
(functional earth)
RES RES RES
2
M
RES
RES
RES
1
L+
RES
RES
RES
The following table contains illustrations of connection examples, where n = port number:
IO-Link operating mode
Operating mode DI
Operating mode DQ
Note
Connected sensors must u
se the device supply provided by the Master module L
n
connection.