A-127
Appendices
CJ2 CPU Unit Software User’s Manual
A-3 Auxiliary Area
App
A-3-1 Read-only Area (Set by System)
A321 A321.10 High-speed
Counter 3 Count
Direction
This flag indicates whether high-speed counter 3 is currently
being incremented or decremented. The counter PV for the cur-
rent cycle is compared with the PV in last cycle to determine the
direction.
OFF: Decrementing, ON: Incrementing
--- --- • Setting used for
high-speed
counter, valid dur-
ing counter oper-
ation.
• Refreshed each
cycle during over-
seeing process.
• Refreshed when
PRV(881) instruc-
tion is executed to
read the PV or
status.
A322
and
A323
--- Pulse Output 2
PV
Contain the number of pulses output from the corresponding
pulse output port.
Contain the number of pulses output from the corresponding
pulse output port.
8000 0000 to 7FFF FFFF hex (−2,147,483,648 to 2,147,483,647)
When pulses are being output in the CW direction, the PV is
incremented by 1 for each pulse.
When pulses are being output in the CCW direction, the PV is
decremented by 1 for each pulse.
PV after overflow: 7FFF FFFF hex
PV after underflow: 8000 000 hex
Lower 4 digits: A276/A278/A322/A324
Upper 4 digits: A277/A279/A323/A325
Cleared Cleared • Refreshed each
cycle during over-
seeing process.
• Refreshed when
INI(880) instruc-
tion is executed to
change the PV of
the corresponding
counter.
• Cleared when
Pulse Output
Reset Bit is
turned ON.
• Cleared when
pulse output is
started (when the
origin is not
defined).
• Refreshed when
PRV(881) instruc-
tion is executed to
read the PV or
status.
A324
and
A325
--- Pulse Output 3
PV
Cleared Cleared
A326 A326.00 Pulse Output 2
Pulse Output
Status Flag
This flag will be ON when pulses are being output from pulse out-
put 2 according to an ORG(889), ACC(888), PLS2(887), or
IFEED(892) instruction and the output frequency is being
changed in steps (accelerating or decelerating).
OFF: Constant speed, ON: Accelerating/decelerating
Cleared Cleared Refreshed each
cycle during over-
seeing process.
A326.01 Pulse Output 2
Overflow/Under-
flow Flag
This flag indicates when an overflow or underflow has occurred in
the PV of pulse output 2.
OFF: Normal, ON: Error
Cleared Cleared • Cleared when the
INI(880) instruc-
tion is executed to
change the PV.
• Refreshed when
an overflow or
underflow occurs.
A326.02 Pulse Output 2
Number of
Pulses Set Flag
ON when the number of output pulses for pulse output 2 has been
set with the PULS(886) instruction.
OFF: Not set, ON: Set
Cleared Cleared • Refreshed when
the PULS(886)
instruction is exe-
cuted.
• Cleared when
pulse output is
stopped.
A326.03 Pulse Output 2
Output Com-
pleted Flag
ON when the number of output pulses set with the PULS(886),
PLS2(887), or IFEED(892) instruction has been output through
pulse output 2.
OFF: Output not completed, ON: Output completed
Cleared Cleared Refreshed at the
start or completion
of pulse output in
independent mode.
A326.04 Pulse Output 2
Outputting
Pulses Flag
ON when pulses are being output from pulse output 2.
OFF: Stopped, ON: Outputting
Cleared Cleared Refreshed when
pulse output 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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