Omron CS1D DUPLEX SYSTEM - 10-2009 Operation Manual page 544

Auxiliary Area Allocations
Address Name
Words Bits
A100 to All Error Log
A199 Area
A200 A20011 First Cycle
Flag
A20012 Step Flag
A20014 Task
Started
Flag
A20015 First Task
Startup
Flag
A201 A20110 Online
Editing
Wait Flag
A20111 Online
Editing
Flag
508
Function
When an error has occurred, the
error code, error contents, and
error's time and date are stored in
the Error Log Area. Information on
the 20 most recent errors can be
stored.
Each error record occupies 5 words;
the function of these 5 words is as
follows:
Beginning word:
Error code (bits 0 to 15)
Beginning word +1:
Error contents (bits 0 to 15)
Beginning word +2:
Minutes (bits 8 to 15),
Seconds (bits 0 to 7)
Beginning word +3:
Day of month (bits 8 to 15),
Hours (bits 0 to 7)
Beginning word +4:
Year (bits 8 to 15),
Month (bits 0 to 7)
Errors generated by FAL(006) and
FALS(007) will also be stored in this
Error Log.
The Error Log Area can be reset
from a Programming Device.
If the Error Log Area is full (20
records) and another error occurs,
the oldest record in A100 to A104
will be cleared, the other 19 records
are shifted down, and the new
record is stored in A195 to A199.
ON for one cycle after PLC opera-
tion begins (after the mode is
switched from PROGRAM to RUN or
MONITOR, for example).
ON for one cycle when step execu-
tion is started with STEP(008). This
flag can be used for initialization pro-
cessing at the beginning of a step.
When a task switches from WAIT or
INI to RUN status, this flag will be
turned ON within the task for one
cycle only.
The only difference between this flag
and A20015 is that this flag also
turns ON when the task switches
from WAIT to RUN status.
ON when a task is executed for the
first time. This flag can be used to
check whether the current task is
being executed for the first time so
that initialization processing can be
performed if necessary.
ON when an online editing process
is waiting.
(If another online editing command
is received while waiting, the other
command won't be recorded and an
error will occur.)
ON when an online editing process
is being executed.
Settings Status
after
mode
change
Error code Held
Error contents:
Address of Aux.
Area word with
details or 0000.
Seconds:
00 to 59, BCD
Minutes:
00 to 59, BCD
Hours:
00 to 23, BCD
Day of month:
01 to 31, BCD
Year:
00 to 99, BCD
ON for the first ---
cycle
ON for the first Cleared
cycle after exe-
cution of
STEP(008).
ON for the first Cleared
cycle (including
transitions from
WAIT and IN)
ON: First execu- Cleared
tion
OFF: Not exe-
cutable for the
first time or not
being executed.
ON: Waiting for Cleared
online editing
OFF: Not waiting
for online editing
ON: Online edit- Cleared
ing in progress
OFF: Online
editing not in
progress
Appendix B
Status at Timing Related
startup flags,
settings
Held When A50014
error A300
occurs A400
--- --- ---
--- --- ---
Cleared --- ---
--- --- ---
Cleared --- A527
Cleared --- A527