Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 473

Online Replacement of I/O Units, Special I/O Units, and CPU Bus Units
!Caution Before replacing a Unit online, always disable the operation of all connected
!WARNING
!Caution Before replacing a Unit online, always disable the operation of all connected
!Caution If an Output Unit is replaced and ON status is held in memory for that Unit, the
Canceling Online
Replacement
external devices before starting the replacement procedure. Unexpected out-
puts from the Unit being replaced may result in unexpected operation of con-
trolled devices or systems.
5. Start the online replacement operation by pressing the DEL Key and Up
Key. The square displayed at the lower left of the display indicates that on-
line replacement has been enabled.
6. Confirm that online replacement has been enabled using the flags listed in
Related Auxiliary Area Flags, below, and then replace the Unit.
Note After installing the replacement Unit, tighten the mounting screws
to the proper torque to secure the Unit.
Do not touch any live terminals. You will receive an electric shock.
external devices before starting the replacement procedure. Unexpected out-
puts from the Unit being replaced may result in unexpected operation of con-
trolled devices or systems.
corresponding output will turn ON as soon as the online replacement opera-
tion has been completed. Confirm system safety in advance.
Note Always replace the Unit with one of the same model number.
7. After the Unit has been replaced, end the online replacement operation by
pressing the INS Key and Down Key.
Use the following procedure to return to the initial display after starting the
online replacement procedure.
• Instead of the Rack and slot numbers, press the following keys to enter
Online Replacement Mode.
FUN
• Press the INS Key and Down Key to go to the display that appears for
step 6. This will enable ending the online replacement operation.
Replace Start?
DEL
5-8=I32
Replace Start
~5-8=I32
Replace End?
INS
~5-8=I32
Replace End
5-8=I32
Replace?
CLR
?-?=
*EM
CH
SHIFT
*DM
EM_/EXT
Section 11-4
437