Appendix B Task Codes Specifications
Task
Subcommand
Response task code
Return code
Error cause
code
Code
Code
Code
H18
Setting the calendar
H01
Not-executable
H03
Operation error
H0C
Abnormal set value
clock
RTC cannot be accessed
H10
Abnormal RTC, or not mounting
30 second
H02
Normal execution
H00
adjustment
Not-executable
H03
RTC cannot be accessed
H10
Abnormal RTC, or not mounting
Undefined
H03
to
HFF
Abnormal task code
H01
Undefined
subcommand
H02
Undefined subcommand is set.
H1C
Normal
execution
H00
H20
Initialize all user
H00
Normal execution
H00
memory area
Not-executable
H03
Occupancy
code
mismatch
H03
Local station is READ-occupying CPU
Not occupied
H07
Local station is not occupying CPU
RAM
error
H0A
READ/WRITE check results did not
match
CPU is running
H0B
CPU is running
Initialize HI-FLOW
H01
Normal execution
H00
area
Not-executable
H03
Occupancy
code
mismatch
H03
Local station is READ-occupying CPU
Not occupied
H07
Local station is not occupying CPU
CPU is running
H0B
CPU is running and “modify during
RUN” mode is not set
Initialize HI-LADDER
H02
Normal execution
H00
area
Not-executable
H03
Occupancy
code
mismatch
H03
Local station is READ-occupying CPU
Not occupied
H07
Local station is not occupying CPU
CPU is running
H0B
CPU is running and “modify during
RUN” mode is not set
Zero clear all user
H03 Normal
execution
H00
memory
area
Not-executable
H03
Occupancy
code
mismatch
H03
Local station is READ-occupying CPU
Not occupied
H07
Local station is not occupying CPU
CPU is running
H0B
CPU is running
Undefined
H04
to
HFF
Abnormal task code
H01
Undefined
subcommand
H02
Undefined subcommand is set.
H23
Write to parameter
H00
Normal execution
H00
area (A)
Abnormal task code
H01
Abnormal address
H04
Transfer address is outside the specified
range of parameter area (A)
Abnormal
number
of
steps/words
H05
Number of transfer steps are outside the
specified range
Memory over
H09
“A number of steps” exceeds the
parameter area
Not-executable
H03
Occupancy
code
mismatch
H03
Local station is READ-occupying CPU
Not occupied
H07
Local station is not occupying CPU
CPU is running
H0B
CPU is running
Write to HI-FLOW area
H01
Normal execution
H00
Abnormal
task
code H01
Abnormal address
H04
Transfer address is outside the designated
range of HI-FLOW area
Abnormal
number
of
steps/words
H05
Number of transfer steps are outside the
designated range
Memory over
H09
“A number of steps” exceeds the
flow area
Not-executable
H03
Occupancy
code
mismatch
H03
Local station is READ-occupying CPU
Not occupied
H07
Local station is not occupying CPU
CPU is running
H0B
CPU is running
Write to HI-LADDER
H02
Normal execution
H00
area
Abnormal task code
H01
Abnormal address
H04
Transfer address is outside the designated
range of HI-LADDER area
Abnormal
number
of
steps/words
H05
Number of transfer steps are outside the
designated range
Memory over
H09
“A number of steps” exceeds the
ladder area
B-46