Operating instructions IO-Link USB Master SiLink2 Master
Electrical Connection
12
© SICK AG • Presence Detection • Subject to change without notice • 8017387
Wall Plug Usage
As standard, a USB port provides 500 mA at 5 V. Without a wall plug, the
SiLink2 Master IOLA2US supplies approx. 80 mA at 24 V. For lots of IO-Link
devices, a power supply of 80 mA is sufficient.
If the IO-Link device needs more power, e.g., when starting up, then you will
need to use the supplied wall plug.
Fig. 4: Wall plug pin assignment
5.3
Connection Diagram
5.3.1
USB Connection Diagram
1
2
4 3
5
Fig. 5: Mini USB B connection diagram
Contact
Signal
Description
1
+5 V
VBUS +5 V DC/500 mA
2
D–
Data–
3
D+
Data+
4
ID
nc: not assigned
5
GND
Ground (0 V)
Table 2:
Description Mini USB B
5.3.2
IO-Link Connection Diagram
1
2
4
3
5
Fig. 6: IO-Link connection diagram, M12 male connector, 5-pole, A-coding
Contact
Signal
Description
1
+24 V
Supply voltage: DC +24 V
2
SIO
SIO: CH2 (DI/DO)
3
GND
Supply voltage: 0 V
4
IO-Link
IO-Link: CH1 (C/Q)
5
–
nc: not assigned
Table 3:
Description IO-Link, M12 male connector, 5-pole, A-coding
