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IO-Link - Design
14.5.5 Pin assignment (port class A or B)
Pin Designation Assignment (IO-Link
operation mode)
Wire colour
1 L+ 24 V DC brown
2 DIO / 2L+ Not used (white)
3 L-
0V(GND) blue
4 C/Q IO-Link black
Table 4: Pin assignment for connecting port Class A (M12 connection, 4-pole)
Pin Designation Assignment (IO-Link
operation mode)
Wire colour
1 L+
24VDC(Power1) brown
2 DIO / 2L+
24VDC(Power2) white
3 L-
0V(GND-Power1) blue
4 C/Q IO-Link black
5 2M
0V(GND-Power2) grey or yellow/
green
Table 5: Pin assignment for connecting port Class B (M12 connection, 5-pole)
ThediagrambelowillustratesthedierencebetweenportclassAandB:
Fig. 37: Assignment principles for port class A and B
english
Control Head Type 8681