< 8. Appendix>
8-4
TI 34M6A82-01E
2nd Edition : Nov. 1, 2002-00
Self-diagnosis Status
Self-diagnostics status relays reflect the results of sequence CPU self-diagnosis.
Table Self-diagnosis
Status
Item Self-diagnosis
status
No. Name
Value
Description
M193
Self-diagnosis error ON: An error is found
OFF: No error is found
The results of the self-diagnosis
are loaded in special registers
Z17-Z19
M194
Battery error
ON: Error
OFF: Normal operation
Indicates a backup battery error.
M195
Momentary power
failure
ON: A momentary power
failure occurs
OFF: No momentary
power failure
Indicates that a momentary
power failure has occurred.
M196
Error in
communication
between CPUs
ON: Error
OFF: Normal operation
Indicates an error in
communication through shared
relays/registers.
M197
CPU 1
ON: Exists
OFF: Does not exist
Indicates whether a CPU exists
in slot 1.
M198
CPU 2
ON: Exists
OFF: Does not exist
Indicates whether a CPU exists
in slot 2.
M199
CPU 3
ON: Exists
OFF: Does not exist
Indicates whether a CPU exists
in slot 3.
M200
CPU 4
ON: Exists
OFF: Does not exist
Indicates whether a CPU exists
in slot 4.
M201
Instruction
processing error
ON: An error occurs
OFF: No error
Details of the instruction
processing error are loaded in
special registers Z22-Z24
M202
I/O match error
ON: Error
OFF: Normal operation
Indicates that a module
installation state does not match
program settings.
M203
I/O module error
ON: Error
OFF: Normal operation
Indicates that the CPU cannot
access an input/output module.
The slot number of the
corresponding module is loaded
into special registers Z33-Z40.
M204
Scan timeout
ON: Error
OFF: Normal operation
Indicates that scan time exceeds
scan time monitoring time.
M210 Subunit
transmission path
error
ON: Error
OFF: Transfer path not
established
or Transfer path normal
M211 Subunit
transmission path
switching error
ON: Error
OFF: Transfer path not
established
or Transfer path normal
When an error occurs in an
optical FA bus module, the slot
number of the FA bus module is
loaded in special registers Z89-
Z96.
M212 Sensor
control
block scan timeout
ON: Error
OFF: Normal operation
The execution period of the
sensor control block cannot be
maintained.
M225
Sequence program
execution in CPU 1
ON: Program executing
OFF: Program stopped
Indicates whether the sequence
program in CPU1 is running
M226
Sequence program
execution in CPU 2
ON: Program executing
OFF: Program stopped
Indicates whether the sequence
program in CPU1 is running
M227
Sequence program
execution in CPU 3
ON: Program executing
OFF: Program stopped
Indicates whether the sequence
program in CPU1 is running
M228 Sequence
program
execution in CPU 4
ON: Program executing
OFF: Program stopped
Indicates whether the sequence
program in CPU1 is running
SEE ALSO
For more information on subunit
transmission
path error (M210) and subunit
transmission
path switching
error (M211), refer to the special relay/special register section in the “Optical FA Bus Module, Optical
FA Bus 2 Module Instruction Manual” (IM34M6H45-01E)