Omron CJ2 CPU UNIT SOFTWARE User Manual page 603

Address
Name
Words Bits
A276 --- Pulse Output 0
and PV
A277
A278 --- Pulse Output 1
and PV
A279
A280 A280.00 Pulse Output 0
Pulse Output
Status Flag
A280.01 Pulse Output 0
Overflow/Under-
flow Flag
A280.02 Pulse Output 0
Number of
Pulses Set Flag
A280.03 Pulse Output 0
Output Com-
pleted Flag
A280.04 Pulse Output 0
Outputting
Pulses Flag
A280.05 Pulse Output 0
No-origin Flag
CJ2 CPU Unit Software User's Manual
Function
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
This flag will be ON when pulses are being output from pulse out-
put 0 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
This flag indicates when an overflow or underflow has occurred in
the PV of pulse output 0.
OFF: Normal, ON: Error
ON when the number of output pulses for pulse output 0 has been
set with the PULS(886) instruction.
OFF: Not set, ON: Set
ON when the number of output pulses set with the PULS(886),
PLS2(887), or IFEED(892) instruction has been output through
pulse output 0.
OFF: Output not completed, ON: Output completed
ON when pulses are being output from pulse output 0.
OFF: Stopped, ON: Outputting
ON when the origin has not been determined for pulse output 0
and goes OFF when the origin has been determined.
OFF: Origin established, ON: Origin not established
Appendices
Status Write timing/
Status at
after mode Related flags, set-
startup
change tings
Cleared Cleared • Refreshed each
cycle during over-
seeing process.
• Refreshed when
INI(880) instruc-
tion is executed to
change the PV.
• 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.
Cleared Cleared • Refreshed each
cycle during over-
seeing process.
Cleared Cleared • Cleared when the
INI(880) instruc-
tion is executed to
change the PV.
• Refreshed when
an overflow or
underflow occurs.
Cleared Cleared • Refreshed when
the PULS(886)
instruction is exe-
cuted.
• Cleared when
pulse output is
stopped.
Cleared Cleared Refreshed at the
start or completion
of pulse output in
independent mode.
Cleared Cleared Refreshed when
pulse output starts
or stops.
Turned ON Turned • Turned ON when
when oper- ON when the pulse output
ation starts. opera- is reset.
tion
• Turned ON when
starts.
an origin search
is started.
• Turned ON when
a limit input is
received and
clearing is set.
• Turned ON when
an overflow or
underflow occurs.
• Turned OFF when
an origin search
is completed.
• Turned OFF when
INI(880) instruc-
tion is executed to
change the PV.
A-119