Fc6A Series Microsmart Operating Status, Output, And Err Led During Errors; Error Causes And Actions - IDEC MICROSmart FC6A Series User Manual

13: T
ROUBLESHOOTING

FC6A Series MICROSmart Operating Status, Output, and ERR LED during Errors

Error Items
Power failure
Watchdog timer error
Data link connection error
User program ROM CRC error
TIM/CNT preset value change error
Keep data error
User program syntax error
User program download error
System error
Clock error
Expansion bus initialization error
SD memory card transfer error
User program execution error
SD memory card access error
*1 Operation starts to run and outputs are turned on or off according to the user program as default, but it is also possible to stop operation and
turn off outputs using the Function Area Settings on WindLDR. See "Run/Stop Selection at Keep Data Error" on page 5-9.

Error Causes and Actions

0001h: Power Failure
This error indicates when the power supply is lower than the specified voltage. This error is also recorded when the power is
turned off. Clear the error code using WindLDR.
0002h: Watchdog Timer Error
The watchdog timer monitors the time required for one program cycle (scan time). When the time exceeds the allowed time, the
watchdog timer indicates an error. Clear the error code using WindLDR. If this error occurs frequently, the FC6A Series
MICROSmart has to be replaced.
0004h: Data Link Connection Error
A data link function area settings are incorrect or the cable is not connected correctly. Correct the data link function area settings
or connect the cable correctly, and then turn the power off and on or initialize the data link.
0008h: User Program ROM CRC Error
The user program stored in the FC6A Series MICROSmart ROM is corrupted. Download a correct user program to the FC6A Series
MICROSmart, and clear the error code using WindLDR.
0010h: Timer/Counter Preset Value Change Error
The execution data of timer/counter preset values is corrupted. The timer/counter preset values are initialized to the values of the
user program automatically. Note that changed preset values are cleared and that the original values are restored. Clear the error
code using WindLDR.
0040h: Keep Data Sum Check Error
This error indicates that the data designated to be maintained during power failure is corrupted because of memory backup failure.
Note that the "keep" data of internal relays and shift registers are cleared. Data of counters and data registers are also cleared.
Clear the error code using WindLDR. Replace the backup battery.
For details on replacing the backup battery, see "Replacing the Backup Battery" on page 3-32.
0080h: User Program Syntax Error
This error indicates that the user program has a syntax error. Correct the user program, and download the corrected user program
to the FC6A Series MICROSmart. The error code is cleared when a correct user program is transferred.
13-4
Operating Status
Stop
Stop
Stop
Stop
Maintained
*1
Maintained/Stop
Stop
Stop
Stop
Maintained
Maintained
Download: Stop
Upload: Maintained
Maintained
Maintained
FC6A S MICROS U
ERIES MART
Error LED
Output
[ERR]
OFF
OFF
OFF
OFF
Maintained
OFF
OFF
OFF
OFF
Maintained
Maintained
Download: OFF
Upload: Maintained
Maintained
Maintained
' M FC9Y-B1722
SER S ANUAL
Checked at
― Any time
ON Any time
ON When initializing the data link
ON Starting operation
When checking a change in
ON
timer/counter settings
― Turning power on
ON Downloading user program
ON Downloading user program
ON Turning power on
ON Turning power on
Turning power on/
ON
downloading user program
When executing an SD memory
ON
card download/upload
ON Executing user program
When an SD memory card is
ON
inserted