System Flags - Omron CP1L-EL20DR-D Operation Manual

Auxiliary Area Allocations by Function
Name
Error Counter Turn ON this bit to reset the Error Counter Present Value
Reset Bit and turn OFF the Error Counter Error Flag.
Error Counter Dis- Turn ON this bit to hold the error counter value.
able Bit
ON: Error counter value held.
OFF: Error counter value not held.
Present Value of These words contain the present value of the high-speed
High-speed counter.
Counter
Present Value of These words contain the absolute value of the actual
Internal Pulse movement in relation to the internal pulse origin when
Output, Absolute pulses are being output to the error counter.
Value for Abso-
Data range: 8000 0000 to 7FFF FFFF hex
lute Coordinates
(−2,147,483,648 to 2,147,483,647)

System Flags

Name
First Cycle Flag
Initial Task Execution Flag
Task Started Flag
Maximum Cycle Time
Present Cycle Time
10-ms Incrementing Free
Running Timer
100-ms Incrementing Free
Running Timer
678
Description
Address
A200.11 ON for one cycle after PLC operation begins (after the
mode is switched from PROGRAM to RUN or MONI-
TOR, for example).
A200.15 ON when a task is executed for the first time, i.e., when it
changes from INI to RUN status.
A200.14 When a task switches from WAIT or INI to RUN status,
this flag will be turned ON within the task for one cycle
only.
Note The only difference between this flag and
A200.15 is that this flag also turns ON when the
task switches from WAIT to RUN status.
A262 to These words contain the maximum cycle time since the
A263 start of PLC operation. The cycle time is recorded in 8-
digit hexadecimal with the leftmost 4 digits in A263 and
the rightmost 4 digits in A262.
0 to FFFFFFFF: 0 to 429,496,729.5 ms (0.1-ms units)
A264 to These words contain the present cycle time in 8-digit
A265 hexadecimal with the leftmost 4 digits in A265 and the
rightmost 4 digits in A264.
A0 This word contains the system timer used after the
power is turned ON.
A value of 0000 hex is set when the power is turned ON
and this value is automatically incremented by 1 every
10 ms. The value returns to 0000 hex after reaching
FFFF hex (655,350 ms), and then continues to be auto-
matically incremented by 1 every 10 ms.
Note: The timer will continue to be incremented when
the operating mode is switched to RUN mode.
Example: The interval can be counted between
processing A and processing B without requiring timer
instructions. This is achieved by calculating the
difference between the value in A0 for processing A and
the value in A0 for processing B. The interval is counted
in 10 ms units.
A1 This word contains the system timer used after the
power is turned ON.
A value of 0000 hex is set when the power is turned ON
and this value is automatically incremented by 1 every
100 ms. The value returns to 0000 hex after reaching
FFFF hex (6,553,500 ms), and then continues to be
automatically incremented by 1 every 100 ms.
Note: The timer will continue to be incremented when
the operating mode is switched to RUN mode.
Example: The interval can be counted between
processing A and processing B without requiring timer
instructions. This is achieved by calculating the
difference between the value in A0 for processing A and
the value in A0 for processing B. The interval is counted
in 100 ms units.
Read/Write
Read/write
Read/write
Read
Read
Description
Appendix C
Updated
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• Cleared when power is turned ON.
• Cleared when operation starts.
• Updated each cycle during over-
see process.
• Updated when present value is
read using PRV instruction.
• Cleared when power is turned ON.
• Cleared when operation starts.
• Updated each error counter cycle.
Access Updated
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only
Read-only