When The Mode Led Is Not Lit - Mitsubishi Electric Q12DCCPU-V User Manual

16
TROUBLESHOOTING
16.2.2
The following flowchart shows the procedures to be taken when the MODE LED on the C
Controller module does not light up when the C Controller system is powered on.
16
- 5 16.2 Troubleshooting

16.2.2 When the MODE LED is not lit

When the MODE LED is not lit
Error occurred
Is the MODE LED
flashing green?
No
Is the RESET/SELECT
switch set to RESET position?
No
Does the endian
format of the execution file
match the specification of the C
Controller module?
Yes
Is the VX_FP_TASK option
specified to start the task with
floating-point value?
Yes
1
Figure 16.2 When the MODE LED is not lit
* 1 For precautions on the functions, refer to the following.
C Controller Module User's Manual (Utility Operation, Programming)
* 2 Always specify the VX_FP_TASK option for the third argument of taskSpawn when activating a
task that:
• Performs floating-point operations
• Calls a function that returns a floating-point value.
• Calls a function that takes a floating-point value as an argument.
If the above task is activated without the VX_FP_TASK option specified, the operating system may
run away.
When specifying the VX_FP_TASK option in a script file, refer to the following.
C Controller Module User's Manual (Utility Operation, Programming)
For details on the VX_FP_TASK option, refer to the following.
Manuals for VxWorks
Yes
Power off and then on or reset the C
Controller system.
Yes
Turn the RESET/SELECT switch back
from RESET to the middle position.
No
*1
Compile the user program and
regenerate an execution file according
to the C Controller module
specifications.
No
*2
Specify the VX_FP_TASK option to
start the task.
Q12DCCPU-V Q06CCPU-V
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