Omron CJ - 08-2008 - Page 112

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Function Tables Section 1-8
Maintenance
and Debug-
ging
Changing the program
while it is being executed.
Use the online editing function from a
Programming Device.
(Several instruction blocks can be
changed with CX-Programmer.)
Programming
Manual
(W394)
7-2-3 Online
Editing
Sampling I/O Memory data.
• Periodic sampling
• Sampling once each
cycle
• Sampling at specified
times
Data trace at regular intervals
Data trace at the end of each cycle
Data trace each time that TRSM(045)
is executed
7-2-4 Data
Tracing
Confirming there are no
errors in instruction execu-
tion.
Set the PLC Setup to specify the
desired operating mode at start-up.
(Startup Mode)
6-4 Startup
Settings and
Mainte-
nance
Recording the time that
power was turned on, the
last time that power was
interrupted, the number of
power interruptions, and
the total PLC ON time.
Read the Auxiliary Area words con-
taining power supply information.
Startup Time: A510 and A511
Power Interruption Time: A512 and
A513
Number of Power Interruptions: A514
6-4-5 Clock
Functions
Replacing the program
without stopping operation.
Reading the time/date
when the user program
was changed.
Reading the time/date
when the parameter area
was changed.
Set the PLC Setup so that instruction
errors are treated as fatal errors.
(Instruction Error Operation)
2-3-3
Checking
Programs
Programming/monitoring
the PLC remotely.
• Programming or monitor-
ing a PLC on the network
through Host Link.
• Programming or monitor-
ing a PLC through
modems.
Host Link → Network Gateway func-
tion
Host Link through modems
Operation
Manual
2-5
Expanded
System
Configura-
tion
Programming/monitoring
PLCs in other networks
Communicate with PLCs up to two
network levels away through Control-
ler Link or Ethernet.
Error Pro-
cessing and
Troubleshoot-
ing
Generating a non-fatal or
fatal error for user-defined
conditions.
• Non-fatal errors (PLC
operation continues.)
• Fatal errors (PLC opera-
tion stops.)
• Not recording user-
defined alarms and errors
in the error log.
FAILURE ALARM: FAL(006)
SEVERE FAILURE ALARM:
FALS(007)
Set the PLC Setup so that user-
defined FAL errors are not recorded in
the error log.
Programming
Manual
(W394)
6-5 Diag-
nostic and
Debugging
Functions
Analyzing time and logic in
execution of an instruction
block.
FAILURE POINT DETECTION:
FPD(269)
Recording the time/date of
errors and error details.
Reading recorded error
details.
Use the error log function. Up to 20
error records can be stored.
Purpose Function Manual Reference