Omron CJ2M-CPU Series - Page 149

7-39
7 High-speed Counters
CJ2M CPU Unit Pulse I/O Module User’s Manual
7-4 Related Auxiliary Area Words and Bits
7
High-speed
Counter 2 Compar-
ison In-progress
Flag
A320.08 This flag indicates whether a com-
parison operation is being executed
for high-speed counter 2.
OFF: Stopped.
ON: Being executed.
Read • Cleared when power is
turned ON.
• Cleared when starting
operation.
• Refreshed when start-
ing/stopping compari-
son.
High-speed
Counter 2 Over-
flow/Underflow
Flag
A320.09 This flag indicates when an over-
flow or underflow has occurred in
the high-speed counter 2 PV.
(Used only when the counting mode
is set to Linear Mode.)
OFF: Normal
ON: Overflow or underflow
Read • Cleared when power is
turned ON.
• Cleared when opera-
tion starts.
• Cleared when the PV is
changed.
• Refreshed when an
overflow or underflow
occurs.
High-speed
Counter 2 Count
Direction
A320.10 This flag indicates whether high-
speed counter 2 is currently being
incremented or decremented. The
counter PV for the current cycle is
compared with the PV in last cycle
to determine the result.
OFF: Decrementing
ON: Incrementing
Read • Setting used for high-
speed counter, valid
during counter opera-
tion.
• Refreshed each cycle
during overseeing pro-
cess.
• Refreshed when
PRV(881) instruction is
executed to read the PV
or status.
Name Word/Bit Function Read/Write Refresh timing