A-125
Appendices
CJ2 CPU Unit Software User’s Manual
A-3 Auxiliary Area
App
A-3-1 Read-only Area (Set by System)
A315 A315.12 Tag Memory
Error Flag (Non-
fatal Error)
(CJ2H-CPU6@-
EIP only.)
ON when an error occurs in the tag memory where network sym-
bols are stored.
Retained Cleared ---
A315.13 Option Board
Error Flag
Turns ON when the Option Board is removed while the power is
being supplied or an Option Board that is not supported is
mounted.
OFF: No error, ON: Error
Cleared Cleared • Written when
power is turned
ON.
• Refreshed each
cycle during over-
seeing process.
A315.15 Backup Memory
Error Flag
ON when writing to the backup data area, source memory area,
or comment memory area in the internal flash memory fails.
This bit will turn OFF when writing is completed successfully.
Retained Cleared ---
A316
and
A317
--- High-speed
Counter 2 PV
Contains the PV of high-speed counter 2.
Lower 4 digits: A316, Upper 4 digits: A317
Cleared Cleared ---
A318
and
A319
--- High-speed
Counter 3 PV
Contains the PV of high-speed counter 3.
Lower 4 digits: A318, Upper 4 digits: A319
Cleared Cleared ---
A320 A320.00 High-speed
Counter 2 Range
Comparison
Condition 1 In-
range Flag
These flags indicate whether the PV is within any of the eight
ranges when high-speed counter 2 is being operated in range-
comparison mode with upper and lower limits. The In-range
Flags, however, will be ON whenever the comparison value is
within the range regardless of the whether the high-speed counter
is set to execute the interrupt task when the range is entered or
left.
OFF: Not in range, ON: In range
Cleared Cleared • Refreshed each
cycle during over-
seeing process.
• Refreshed when
PRV(881) instruc-
tion is executed to
read the results of
range compari-
son.
• Refreshed when
INI(880) instruc-
tion is executed to
change PV or ring
counter maxi-
mum value.
• Refreshed when
reset.
A320.01 High-speed
Counter 2 Range
Comparison
Condition 2 In-
range Flag
A320.02 High-speed
Counter 2 Range
Comparison
Condition 3 In-
range Flag
A320.03 High-speed
Counter 2 Range
Comparison
Condition 4 In-
range Flag
A320.04 High-speed
Counter 2 Range
Comparison
Condition 5 In-
range Flag
A320.05 High-speed
Counter 2 Range
Comparison
Condition 6 In-
range Flag
A320.06 High-speed
Counter 2 Range
Comparison
Condition 7 In-
range Flag
A320.07 High-speed
Counter 2 Range
Comparison
Condition 8 In-
range Flag
A320.08 High-speed
Counter 2 Com-
parison In-
progress Flag
This flag indicates whether a comparison operation is being exe-
cuted for high-speed counter 2.
OFF: Stopped, ON: Comparing
Cleared Cleared Refreshed when
comparison opera-
tion starts or stops.
Address
Name Function
Status
after mode
change
Status at
startup
Write timing/
Related flags, set-
tings
Words Bits
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