Omron CP1L CPU UNIT - 06-2007 Operation Manual page 323

Inverter Positioning
Word Bits Function
A26 07 Error Counter Alarm
Flag
08 to 14 Not used.
15 Inverter Positioning
Output Value Sign
Flag
A270 00 to 15 Lower 4 digits of
high-speed counter
present value
A271 00 to 15 Upper 4 digits of
high-speed counter
present value
Word Bits Function
A22 00 to 15 Error counter 0
present value
(signed)
A28 00 to 15 Lower 4 digits of
present value of
pulse output to
inverter (relative
value)
A29 00 to 15 Upper 4 digits of
present value of
pulse output to
inverter (relative
value)
290
Data range
ON: Error counter Turned ON at following times:
alarm
• When pulse output to error counter is
OFF: No error stopped and absolute value of error
counter alarm counter present value is greater than
or equal to error counter alarm detec-
tion value
Turned OFF at following times:
• When error counter alarm is reset
• When power to CPU Unit is turned ON
• When CPU Unit operation starts
• When CPU Unit operation stops
ON: Positive value Turned ON at following times:
OFF: Negative • When signed output value is between
value 0000 0000 and 7FFF FFFF hex.
Turned OFF at following times:
• When signed output value is between
FFFF FFFF and 8000 0000 hex.
8000 000 to 7FFF The present value of the feedback
FFFF hex pulse from the encoder.
(−2,147,483,648 to
Operation is the same as for a high-
2,147,483,647)
speed counter.
Use the following for the present values of the internal pulse and error counter
of inverter positioning.
Data range
8000 to 7FFF hex Cleared to zero at following times:
(−32,768 to
• When power to CPU Unit is turned ON
32,767)
• At start of operation
• When an error counter error occurs
Updated at following times:
• Cyclically according to error counter
cycle
Held at following times:
• When Error Counter Disable Bit
(A562.01) is turned ON.
8000 0000 to 7FFF Contains relative internal pulse output
FFFF hex value when pulses are output to error
(−2,147,483,648 to counter.
2,147,483,647)
Cleared to zero at following times:
• When power to CPU Unit is turned ON
• When operation is started
• When pulse output to error counter is
started
Updated at following times:
• Cyclically on error counter cycle
Refresh timing
Refresh timing
Section 5-3
Application
examples
This flag can be
used to provide
notification of
excessive pulses in
the error counter,
e.g., when encoder
wiring breaks dur-
ing positioning.
This flag can be
used as a direction
signal
Use as the abso-
lute position of the
workpiece posi-
tioned with inverter
positioning.
Application
examples
Use to monitor the
difference between
the target value
and the present
value.
These values can
be used to monitor
the present value
of internal pulse
output.