Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 319

Auxiliary Area
Name
CPU Bus Unit Error, Unit
Number Flags
Special I/O Unit Error, Unit
Number Flags
Unit Replacement without a
Programming Device Enabled
Flag
Maintenance Start Bit
Online Replacement Com-
pleted Bit
Online Replacement Comple-
tion Error Flag
Online Replacement Comple-
tion Error Details
Address
A41700 to When an error occurs in a data exchange between the CPU
A41715 Unit and a CPU Bus Unit, the CPU Bus Unit Error Flag
(A40207) and the corresponding flag in A417 are turned ON.
If the PLC Setup is set to turn ON the corresponding Error
Unit Number Flag when a Special Unit (Special I/O Unit or
CPU Bus Unit) is being replaced, the corresponding flag will
be turned ON when the Unit is being replaced.
If a duplexed CLK Unit is being replaced, the corresponding
flag will be turned ON during replacement.
Bits 00 to 15 correspond to unit numbers 0 to F.
A41800 to When an error occurs in a data exchange between the CPU
A42315 Unit and a Special I/O Unit, the Special I/O Unit Error Flag
(A40206) and the corresponding flag in these words are
turned ON.
If the PLC Setup is set to turn ON the corresponding Error
Unit Number Flag when a Special Unit (Special I/O Unit or
CPU Bus Unit) is being replaced, the corresponding flag will
be turned ON when the Unit is being replaced.
A09911 ON when the Unit Removal without a Programming Device
or Removal/Addition of Units without a Programming Device
function has been enabled in the PLC Setup.
A80015 This bit is provided to prevent non-fatal errors from occurring
during Unit removal without a Programming Device.
When this bit is ON, a Basic I/O Unit error, Special I/O Unit
error, or CPU Bus Unit error will not occur when a Unit is
removed. In addition, the CPU Unit will not detect an error
even if a Basic I/O Unit error, Special I/O Unit error, or CPU
Bus Unit error occurs in a Unit other than the one being
removed.
When this bit is OFF, a Basic I/O Unit error, Special I/O Unit
error, or CPU Bus Unit error will occur when a Unit is
removed. In addition, the CPU Unit will detect Basic I/O Unit
errors, Special I/O Unit errors, or CPU Bus Unit errors occur-
ring in Units other than the one being removed.
After replacing the Units, turn ON the Online Replacement
Completed Bit (A80215) to restart data exchange. This bit is
turned OFF automatically when the Online Replacement
Completed Bit goes ON. (See note 4.)
This bit can also be turned OFF manually by the user before
all of the online replacements have been completed. Turn
this bit OFF when you want to detect errors in Units other
than the ones being replaced.
A80215 The bit is provided to restart the data exchange between the
replaced Unit and CPU Unit. After a Unit has been replaced
without a Programming Device, turn ON the Online Replace-
ment Completed Bit to restart the data exchange between
the CPU Unit and the slot where the Unit was replaced.
Once data exchange has started, the bit goes OFF.
A80115 ON: Online replacement (see note 3) failed.
This flag indicates the completion status for the last online
Unit replacement that occurred, so it will be turned OFF
when a Unit is successfully replaced even if there is still a
Unit in the PLC which was not replaced successfully.
A80300 to When an online replacement function (see note 3) failed, the
A80303 relevant flag will be turned ON.
A80300: No Unit mounted or Unit mounted in another slot.
A80301: Replaced Unit and new Unit are different models.
A80302: Different unit numbers on replaced and new Units.
A80303: Different node numbers on replaced and new Units
(when replacing a duplex Communications Unit).
Description
Section 8-11
Access
Read-only
Read-only
Read-only
Read/write
Read/write
Read/write
Read/write
283