Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 488

Online Replacement of I/O Units, Special I/O Units, and CPU Bus Units
5 Units removed.
Units to replace:
5 Units
Online Replacement
Completed Bit
(A80215)
452
Example
Mount 2 Units and turn
A80215 from OFF to ON.
Units to replace:
3 Units
Restart data exchange
with 2 Units.
Example
Replacement Completed Switch
The switch is connected to an Input Unit
and turns A80215 in the ladder program.
Ladder Programming for the Online Replacement Bit and Maintenance
Start Bit
Example
Input from external switch
(for Online Replacement
Completed Bit)
Input from external switch
(for Maintenance Start Bit)
A80015
Creates a self-holding bit.
If the Maintenance Start Bit is turned ON by mistake, an error will
not be generated even if a Unit fails. Therefore, the Maintenance
Start Bit is turned OFF after a short time. (In this example, it is
turned OFF by the 5-minute timer.)
Mount 2 more Units Mount 1 more Unit
and turn A80215 from and turn A80215 from
OFF to ON. OFF to ON.
Units to replace:
1 Unit
Restart data exchange
with 2 more Units.
Online Replacement
Completed Bit (A80215)
Turn A80215 ON from the PT with
a button operation.
Turn bit ON with the corresponding switch.
TIM a
Section 11-4
Replacement
complete
Restart data exchange
with 1 more Unit.
PT
Replacement
Completed
A80215
Online Replacement
Completed Bit
A80015
Maintenance Start Bit
TIM Timer (5 minutes)
a
#3000