Omron CJ2 CPU UNIT SOFTWARE User Manual page 635

Address
Name
Words Bits
A508 A508.13 Trace Busy
Flag
A508.14 Trace Start
Bit
A508.15 Sampling
Start Bit
A510 --- Startup
and Time
A511
A512 --- Power Inter-
and ruption
A513 Time
A514 --- Number of
Power Inter-
ruptions
A515 to --- Operation
A517 Start Time
CJ2 CPU Unit Software User's Manual
Function
ON when the Sampling Start Bit (A508.15) is turned
from OFF to ON. OFF when the trace is completed.
Turn this bit from OFF to ON to establish the trigger
condition. The offset indicated by the delay value (posi-
tive or negative) determines which data samples are
valid.
When a data trace is started by turning this bit from
OFF to ON from the CX-Programmer, the PLC will
begin storing data in Trace Memory by one of the three
following methods:
1. Data is sampled at regular intervals (10 to 2,550
ms).
2. Data is sampled when TRSM(045) is executed in
the program.
3. Data is sampled at the end of every cycle.
The operation of A50815 can be controlled only from
the CX-Programmer.
These words contain the time at which the power was
turned ON. The contents are updated every time that
the power is turned ON. The data is stored in BCD.
A510.00 to A510.07: Second (00 to 59)
A510.08 to A510.15: Minute (00 to 59)
A511.00 to A511.07: Hour (00 to 23)
A511.08 to A511.15: Day of month (01 to 31)
These words contain the time at which the power was
interrupted. The contents are updated every time that
the power is interrupted. The data is stored in BCD.
A512.00 to A512.07: Second (00 to 59)
A512.08 to A512.15: Minute (00 to 59)
A513.00 to A513.07: Hour (00 to 23)
A513.08 to A513.15: Day of month (01 to 31)
These words are not cleared at startup.
Contains the number of times that power has been
interrupted since the power was first turned ON. The
data is stored in binary. To reset this value, overwrite
the current value with 0000 hex.
This word is not cleared at startup, but it is cleared
when the Memory Corruption Detected Flag (A395.11)
goes ON.
The time that operation started as a result of changing
the operating mode to RUN or MONITOR mode is
stored here in BCD.
A515.00 to A515.07: Seconds (00 to 59)
A515.08 to A515.15: Minutes (00 to 59)
A516.00 to A516.07: Hour (00 to 23)
A516.08 to A516.15: Day of month (01 to 31)
A517.00 to A517.07: Month (01 to 12)
A517.08 to A517.15: Year (00 to 99)
The previous start time is stored after turning ON the
power supply until operation is started.
Status
after Status at
Settings
mode
change
ON: Trace in Retained Cleared
progress
OFF: Not tracing
(not sampling)
ON: Trace trigger Retained Cleared
condition estab-
lished
OFF: Not estab-
lished
OFF to ON: Starts Retained Cleared
data trace (sam-
pling)
Turned ON from
Programming
Device.
See Function col- Retained See Func-
umn. tion col-
umn.
See Function col- Retained Retained
umn.
0000 to FFFF Retained Retained
hexadecimal
See Function col- Retained Retained
umn.
Appendices
Write timing/
Related flags,
startup
settings
---
---
---
Refreshed
when power is
turned ON.
Written at
power inter-
ruption
Refreshed
when power is
turned ON.
A395.11
See Function
column.
A-151