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C200HW-SRM21-V1 Master Unit for CS-series, C200HX/C200HG/C200HE-(Z)E, and C200HS PLCs
Section 4-1
CS-series PLCs
C200HX/C200HG/C200HE-(Z)E PLCs
Data Area
Bit(s)
Name
Function
Auxiliary
Area (A)
A33000 to
A33015
Special I/O Unit Restarting
Flags
These flags are turned ON while a Special I/O Unit is
restarting. Each bit corresponds to the Unit with the same
unit number.
A40113
Dual Number Use Error Flag
(Fatal Error)
This flag is turned ON in the following situations:
When the same unit number has been set on more than
one CS1 CPU Bus Unit.
When the same unit number has been set on more than
one Special I/O Unit.
When the same word is allocated more than once for Basic
I/O Units.
A40206
Special I/O Unit Error Flag
This flag is turned ON when the same unit number has
been set on more than one Special I/O Unit, or when an
error has occurred during data transfer between the PLC
and the Special I/O Unit. The unit number of the Unit is writ-
ten to word A418.
A41100 to
A41115
Special I/O Unit Number
Duplication Flags
These flags are turned ON when the same unit number has
been set on more than one Special I/O Unit (i.e., when
A40113 is ON). Each bit corresponds to the Unit with the
same unit number.
A41800 to
A41815
Special I/O Unit Error Flags
These flags are turned ON when the same unit number has
been set on more than one Special I/O Unit, or when an
error has occurred during data transfer between the PLC
and the Special I/O Unit. Each bit corresponds to the Unit
with the same unit number.
A50200 to
A50215
Special I/O Unit Restart Bits
Turn the corresponding bit ON and then OFF to restart a
Special I/O Unit. Each bit corresponds to the Unit with the
same unit number.
PLC Setup
22600 to
22615
Special I/O Unit Refresh Dis-
able Bits
Turn the corresponding bit ON to disable refreshing of the
corresponding Special I/O Unit (except those on Slave
Racks).
Data area
Bit(s)
Name
Function
SR Area
SR 25415
Special I/O Unit Error Flag
This flag is turned ON when there is an error in data trans-
fers between the PLC and a Special I/O Unit or the same
unit number has been set on more than one Special I/O
Unit.
The unit number of the affected Unit is written to AR 00 and
SR 282.
SR 27400 to
SR 27415
Special I/O Unit Restarting
Flags
These flags are turned ON while a Special I/O Unit is
restarting. Each bit corresponds to the Unit with the same
unit number.
SR 28100 to
SR 28115
Special I/O Unit Restart Bits
Turn the corresponding bit OFF
→
ON
→
OFF to restart a
Special I/O Unit. Each bit corresponds to the Unit with the
same unit number.
(Bits AR 0100 to AR 0109 can also be used to restart Spe-
cial I/O Units 0 to 9.)
SR 28200 to
SR 28215
Special I/O Unit Error Flags
These flags are turned ON when there is an error in data
transfers between the PLC and the corresponding Special
I/O Unit or the same unit number has been set on more
than one Special I/O Unit. Each bit corresponds to the Unit
with the same unit number.
(Bits AR 0000 to AR 0009 show the same information for
Special I/O Units 0 to 9.)
