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180
Memory Areas Related to Duplex Operation
Section 8-6
A316
03
Duplex Communications Error Flag
Turns ON when there is an error in a Duplex
Communications Unit (either active or standby).
This flag can be used to check whether or not
there are errors in any Duplex Communications
Units.
ON: There is an error in a Duplex
Communications Unit.
OFF: All Duplex Communications Units are
operating normally.
This flag will turn ON if any of the flags below
turn ON.
A43600 to A43615: Duplex Communications
Switched Flags
A43700 to A43715: Duplex Communications
Standby Unit Error Flags
A434
00 to 15
Duplex Communications Error
Recognition Flags
Turns ON when a Duplex Unit is not mounted for
a unit number specified for Duplex
Communications Units (i.e., a Unit is missing or
the mounted Unit does not support duplex
operation).
Bits 00 to 15 correspond to unit numbers 0 to F.
ON: Duplex communications recognition error
OFF: No duplex communications recognition
error
A435
00 to 15
Duplex Communications Setting
Error Flags
Turns ON when the unit number or node address
of 2 Units specified as a pair of Duplex
Communications Units in the PLC Setup does
not agree.
Bits 00 to 15 correspond to unit numbers 0 to F.
ON: Duplex communications setting error
OFF: No duplex communications setting error
A436
00 to 15
Duplex Communications Switched
Flags (non-fatal communications
error)
Turns ON when an error occurs in the active
Communications Unit and operation is switched
to the standby Communications Unit.
Communications will be continued by the
standby Communications Unit.
Bits 00 to 15 correspond to unit numbers 0 to F.
ON: Operation switched
OFF: Operation not switched
This flag is turned OFF when online replacement
is performed for the faulty Communications Unit.
A code indicating the cause of the switch is
stored in A042 to A049.
A437
00 to 15
Duplex Communications Standby
Unit Error Flags (non-fatal
communications error)
Turns ON when an error occurs in the standby
Communications Unit (from self-diagnosis).
Communications will be continued by the active
Communications Unit.
Bits 00 to 15 correspond to unit numbers 0 to F.
ON: Standby Communications Unit error
OFF: Standby Communications Unit normal
This flag is turned OFF when online replacement
is performed for the faulty Communications Unit.
Word(s)
Bit(s)
Name
Function
Summary of Contents for CS1W-CLK12-V1
Page 3: ...iv ...
Page 5: ...vi ...
Page 9: ...x TABLE OF CONTENTS ...
Page 11: ...xii ...
Page 59: ...42 Component Names and Functions Section 3 1 Dimensions Unit mm ...
Page 62: ...45 Component Names and Functions Section 3 1 Dimensions Unit mm ...
Page 91: ...74 CVM1 and CV series Optical Ring Controller Link Units Section 4 2 ...
Page 108: ...91 Setting Data Links Section 5 2 Device Information Setting Data Link Tables ...
Page 125: ...108 Checking Data Link Status Section 5 4 ...
Page 181: ...164 Setting Routing Tables Section 7 4 ...
Page 199: ...182 Memory Areas Related to Duplex Operation Section 8 6 ...
Page 275: ...258 Handling Precautions Section 10 7 ...
Page 298: ...281 CS series Optical Bus Controller Link Units Appendix C Dimensions Unit mm 101 35 130 ...
Page 299: ...282 CS series Optical Bus Controller Link Units Appendix C ...