
Guidelines for electrical installation
D301171 - IO-Link master 1108
6-4
Potential relationships
The potential relationship of the IO-Link master with PROFIBUS-DP is characterized as
shown in the following figure:
Figure 39:
Block diagram
of SPDX-IOL4-
0001
U
B
U
B
PROFIBUS
U
L
U
L
GND
GND
GND
GND
Inputs/
IOLD
I >