IDEC SmartAXIS Touch FT1A Series, User Manual

Page: 1189 / 1232

SmartAXIS Touch User's Manual
30-3
2 Error Information
30
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There are two kinds of errors with the control functions of the Touch: general errors and program execution errors.
General errors can be checked by the state of a Special Data Register (D8005), and they can be cleared.
Program execution errors can checked by the state of a Special Data Register (D8006).
2.1 General Error Codes
The error code is stored in Special Data Register D8005. If '1' is stored in each bit of D8005, the corresponding error
is occurring.
Also, general errors (D8005) and program execution errors (D8006) can be cleared by writing "1" to the most
significant bit of Special Data Register D8005, using a ladder program or FBD program. Due to parts and
communication, writing "1" to the most significant bit of D8005 will not clear errors.
●
General Error Code List
2 Error Information
15 14 13
Error clear bit
12 11 10 9 8 7 6 5 4 3 2 1 0
Error information bits
D8005
bit bit bit bit
Bit No. Item Cause Solution
0 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.
1
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 Touch
has to be replaced.
2, 3 Reserved – –
4
Timer/Counter
Preset Value
Sum Check
Error
The execution data of timer/counter preset values
is corrupted. The timer/counter preset values are
initialized to the values of the ladder program
automatically. Note that changed preset values are
cleared and that the original values are restored.
Clear the error code using WindLDR.
5 Reserved – –
6
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.
If this error occurs in a short period of
power interruption after the battery
has been charged as specified, the
battery is defective and the Touch has
to be replaced. Clear the error code
using WindLDR.
7
Program Syntax
Error
This error indicates that the ladder program or FBD
program has a syntax error.
Correct the ladder program or FBD
program, and then download it to the
Touch.
8 to 12 Reserved
– –
13
Program
Execution Error
This error indicates that invalid data is found
during execution of a ladder program or FBD
program. When this error occurs, special internal
relay M8004 (program execution error) is turned
on.
Refer to “2.2 Program Execution Error”
on page 30-5 and fix and clear the
error code. Clear the error code with
WindO/I-NV3.
14 Reserved – –
15 Error clear bit – –