Installing Or Removing The Module While Power Is Applied; Install The Serial Adapter Cables - Rockwell Automation Allen-Bradley ControlLogix 1756-MVI Installation Instructions Manual

12 ControlLogix Multi-Vendor Interface Module

Installing or Removing the Module While Power Is Applied

You can install or remove the module while chassis power is
applied.
ATTENTION
!

Install the Serial Adapter Cables

Three identical serial adapter cables are supplied. Each cable has a
locking-type RJ45 plug on one end and a DB-9 male connector on
the other end. Insert the RJ45 connector on each cable into the RJ45
receptacles marked PRT1, PRT2, and PRT3 on the module.
Publication 1756-IN001A-US-P - May 2000
When you insert or remove a module while
backplane power is on, an electrical arc may occur.
An electrical arc can cause personal injury or
property damage by:
sending an erroneous signal to your system's
•
actuators causing unintended machine motion or
loss of process control.
causing an explosion in a hazardous
•
environment.
Repeated electrical arcing causes excessive wear to
contacts on both the module and its mating
connector. Worn contacts may create electrical
resistance that can affect module operation.
To install the locking-type RJ45
connector, slide the plug into
the receptacle. The locking
mechanism prevents the cable
from being removed during
normal operation. To remove
the cable, press the locking tab
and remove the plug.