IFM PI2789 - Interface Connections; IO-Link Parameter Setting; 3-Wire Operation Wiring

12
6.2 Connection for IO-Link parameter setting




4
1
3
2
L
+
L
P
Pin 1 Ub+
Pin 2 Output function according to the OU2 setting
Pin 3 Ub- for programming mode
Pin 4 (P) Communication via IO-Link
6.3 Connection for 3-wire operation
2 x positive switching 2 x negative switching




4
L
L
+
2
1
3
Out 1
Out 2
4:
2:
4
L
L
+
2
1
3
Out 1
Out 2
4:
2:
1 x positive switching / 1 x analogue 1 x negative switching / 1 x analogue
4
1
3
2
L
+
L
Out 1
Out 2
4:
2:
2
1
3
4
L
+
L
Out 1
Out 2
4:
2:
Pin 1 Ub+
Pin 3 Ub-
Pin 4 (OUT1)
•Binary switching output pressure monitoring
•Communication via IO-Link
Pin 2 (OUT2)
Binary switching output pressure monitoring or analogue output for
system pressure�