Omron PROFINET NX-PNC202 User Manual page 131

Communications
cable
Precautions for Correct Use
• The cable between any two nodes (L1, L2 ... Ln) must be 100 m or less.
• Do not exceed the ranges that are given in the specifications for the communications dis-
tance and number of connected Units.
• Firmly connect the communications cable connector until it clicks into place.
• When you install the communications cables, observe the cable specifications (e.g., bending
radius) of the cable manufacturer.
• Do not disconnect the communications cables from the Profinet IO Devices during operation.
The outputs from the PROFINET IO Controller may become unstable. However, for the
PROFINET IO Controller, it is OK to disconnect the communications cable from a Profinet IO
Device Terminal that has been disconnected from communications in the software.
NX-series PROFINET Coupler Unit User's Manual (W623)
PROFINET IO Controller Unit
L1
L2
Ln
Last PROFINET
IO Device
7 Wiring
PROFINET
IO Devices
7 - 5
7