CS1D-DPL02D Omron, CS1D-DPL02D Datasheet - Page 470

• Manufacturer Part Number: CS1D-DPL02D
• Description: CS1D Dual IO Exp
• Manufacturer: Omron

Specifications of CS1D-DPL02D

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

11-4 Online Replacement of I/O Units, Special I/O Units, and
11-4-1 Replacing One Unit at a Time
Operating Mode
Online Replacement of I/O Units, Special I/O Units, and CPU Bus Units
CPU Bus Units
!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
!Caution When online replacement is started or completed in a Duplex CPU System,
Note Units cannot be replaced if the CPU is on standby or power is interrupted to
I/O Units, Special I/O Units, and CPU Bus Units can be replaced while power
is being supplied and the PLC is operating in both Single CPU and Duplex
CPU Systems.
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.
duplex initialization will be performed. This will cause a cycle time that is
longer than the normal cycle time. Confirm system safety in advance for the
increase in the cycle time.
As shown below, online replacement is possible in any operating mode.
an Expansion Rack.
OK
• Online replacement is possible from a Programming Console or the CX-
• I/O for the Unit that is being replaced with be interrupted during the
• When a Unit is replaced, some of that Unit's CPU Unit data is retained
Programmer (Ver. 3.1 or later).
replacement operation.
and some is cleared.
A Basic I/O Unit's output data is retained.
A Basic I/O Unit's input data is not retained.
If the Unit is a Special I/O Unit or CPU Bus Unit, the data is retained in
Special I/O Unit Area or CPU Bus Unit Area allocated to that Unit.
RUN
OK
MONITOR
OK
PROGRAM
Section 11-4
435