Appendices
A-112
CJ2 CPU Unit Software User’s Manual
A99 00 UM Read Protec-
tion Status
Indicates whether the entire user program in the PLC is read-pro-
tected.
OFF: UM not read-protected.
ON: UM read-protected.
Retained Retained When protection is
set or cleared
01 Task Read Pro-
tection Status
Indicates whether read protection is set for individual tasks.
OFF: Tasks not read-protected.
ON: Tasks read-protected.
---
02 Program Write
Protection Sta-
tus when Read
Protection Is Set
Indicates whether the program is write-protected.
OFF: Write-enabled.
ON: Write-protected.
03 Enable/Disable
Status for Back-
ing Up the Pro-
gram to a
Memory Card
Indicates whether creating a backup program file (.OBJ) is
enabled or disabled.
OFF: Enabled.
ON: Disabled.
14 IR/DR Operation
between Tasks
Turn ON this bit to share index and data registers between all
tasks. Turn OFF this bit to use separate index and data registers
between in each task.
OFF: Independent
ON: Shared (default)
---
A100
to
A199
--- Error Log Area 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:
First Word: Error code (bits 0 to 15)
Second Word: Error contents (bits 0 to 15)
Error contents:
Address of Auxiliary Area word with details or 0000.
Third Word: Minutes (bits 8 to 15), Seconds (bits 0 to 7)
Seconds: 00 to 59, BCD
Minutes: 00 to 59, BCD
Fourth Word: Day of month (bits 8 to 15), Hours (bits 0 to 7)
Hours: 00 to 23, BCD
Day of month: 01 to 31, BCD
Fifty Word: Year (bits 8 to 15),
Month (bits 0 to 7)
Year: 00 to 99, BCD
Month: 00 to 12, BCD
Errors generated by FAL(006) and FALS(007) will also be stored
in this Error Log.
The Error Log Area can be reset from the CX-Programmer.
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 will be shifted down, and the new record will be stored in
A195 to A199.
Retained Retained Refreshed when
error occurs.
A50014
A300
A400
Address
Name Function
Status
after mode
change
Status at
startup
Write timing/
Related flags, set-
tings
Words Bits
To Next Page
Loading...
Need help?
General