Special Data Registers For Error Information; General Error Codes - IDEC MICROSmart FC6A Series User Manual

Special Data Registers for Error Information

Two data registers are assigned to store information on errors.
D8005
D8006
Example: This ladder program clears the error information using the error clear bit of special data register D8005.

General Error Codes

The general error status is written to special data register D8005. If "1" is stored in each bit of D8005, the corresponding error is
occurring.
The general error (D8005) and user program execution error (D8006) can be cleared by writing "1" to the most significant bit of
special data register D8005 in a user program. The most significant bit of D8005 then changes to 0 automatically. Errors are not
cleared if the most significant bit of D8005 is turned on by WindLDR over communications or by the operator interface.
Bit 15 14
D8005
General Error Code
User Program Execution Error Code
Turn on M0 and turn on the upper bit of D8005.
The error information is cleared during the scan end processing of the ladder program.
13 12 11 10 9 8 7
System error
Clock error
Expansion bus initialization error
SD memory card transfer error
User program execution error
SD memory card access error
Error clear bit
FC6A S MICROS
ERIES
6 5 4 3 2 1 0
Data link connection error
User program ROM CRC error
Timer/counter preset value change error
Reserved
Keep data sum check error
User program syntax error
User program download error
U ' M
MART SER S ANUAL
13: T
Power failure
Watchdog timer error
Error information bits
FC9Y-B1722
ROUBLESHOOTING
13-3