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Auxiliary Area
Name
Removal/Addition of Units
without a Programming
Device Setting Flag
Turn ON Error Unit Number
Flag when Removing a Spe-
cial Unit Setting Flag
Communications Port Auto-
allocation Instruction
Non-fatal Duplex Error Flag
■
Duplex Power Supply Information
Name
Duplex Power Supply Unit
Error Flag
Error Power Supply Unit
Location
■
Duplex Communications Unit Information for I/O Table Generation
Name
Duplex Communications Unit
Missing or Non-Duplex Com-
munications Unit Flag
Duplex Communications Unit
Verification Error Flag
278
Address
A80402
ON: The unit version of the standby CPU Unit is earlier than
the unit version of the active CPU Unit and the active CPU
Unit uses a PLC Setup setting (Removal/Addition of Units
without a Programming Device Setting) that is not supported
by the standby CPU Unit.
A80403
ON: The unit version of the standby CPU Unit is earlier than
the unit version of the active CPU Unit and the active CPU
Unit uses a PLC Setup setting (Turn ON Error Unit Number
Flag when Removing a Special Unit Setting) that is not sup-
ported by the standby CPU Unit.
A80404
ON: The unit version of the standby CPU Unit is earlier than
the unit version of the active CPU Unit and the active CPU
Unit uses an instruction (automatically allocating the com-
munications port) that is not supported by the standby CPU
Unit.
A40214
ON: One of the following errors occurred: Non-fatal duplex
error, duplex verification error, duplex bus error, duplex
power supply unit error, or duplex communications error
Address
A31602
ON: An error occurred in the Power Supply Unit or power sup-
ply system on a duplex CPU Rack, Expansion Rack, or Long-
distance Expansion Rack.
A31900 to
When an error in a Power Supply Unit results in an error in the
A31915
5-V/26-V output, one of the following bits will turn ON to show
the location of the Power Supply Unit with the error.
A31900: Right Power Supply Unit on CPU Rack (rack 0).
A31901: Left Power Supply Unit on CPU Rack (rack 0).
A31902: Right Power Supply Unit on Expansion Rack (rack 1).
A31903: Left Power Supply Unit on Expansion Rack (rack 1).
...
A31914: Right Power Supply Unit on Expansion Rack (rack 7).
A31915: Left Power Supply Unit on Expansion Rack (rack 7).
A32000 to
When the voltage on the primary side of the Power Supply Unit
A32015
drops or is interrupted, one of the following bits will turn ON to
show the location of the Power Supply Unit with the error.
A32000: Right Power Supply Unit on CPU Rack (rack 0).
A32001: Left Power Supply Unit on CPU Rack (rack 0).
A32002: Right Power Supply Unit on Expansion Rack (rack 1).
A32003: Left Power Supply Unit on Expansion Rack (rack 1).
...
A32014: Right Power Supply Unit on Expansion Rack (rack 7).
A32015: Left Power Supply Unit on Expansion Rack (rack 7).
Address
A26111
ON: Duplex Units are not mounted for a unit number speci-
fied for Duplex Communications Units (i.e., one Unit is miss-
ing or the mounted Units do not support duplex operation).
The I/O tables will not be created and an I/O Table Creation
Error will occur.
A26112
ON: The duplex setting in the PLC Setup for a unit number
specified for Duplex Communications Units does not agree
with the setting on the Duplex Communications Units. The
I/O tables will not be created and an I/O Table Creation Error
will occur. Refer to the Operation Manual for the Communi-
cations Units for details on Unit settings.
Description
Description
Description
Section 8-11
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Troubleshooting
