Bradley Smoker PLC-5 Benutzerhandbuch

Publication 1785-UM012D-EN-P - July 2005

E-6        Switch Setting Reference

If you set this switch to the ON position, when a 
communication fault is detected, outputs connected 
to this chassis remain in their last state to allow machine 
motion to continue. We recommend that you set switch 1
to the OFF position to de-energize outputs wired to this 
chassis when a fault is detected.
Also, if outputs are controlled by inputs in a different rack 
and a remote I/O rack fault occurs (in the inputs rack), the 
inputs are left in their last non-faulted state. The outputs 
may not be properly controlled and potential personnel 
and machine damage may result. If you want your inputs to 
be anything other than their last non-faulted state, then 
you need to program a fault routine.

Set this switch to ON if you plan to use I/O rack 
auto-configuration. The 1771-ASB series A adapter does 
not support 1/2-slot addressing.

USING 
POWER SUPPLY 
MODULE IN 
THE CHASSIS?

1.   Locate the chassis configuration plug (between 
      the first two left-most slots of the chassis).
2.   Set the I/O chassis configuration plug.
      The default setting is N (not using a power 
      supply module in the chassis).

N

Y

N

Y

N

Y

Set Y when you install 
a power supply module 
in the chassis.

Set N when you 
use an external 
power supply.

Important:  You cannot power a single I/O chassis 
with both a power supply module and an external 
power supply.

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