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CHAPTER 9 TROUBLE SHOOTING
9-5
9.1.4 CPU and Interface Error during Operation
CPU error type is interface
error of communication
module ?
Yes
No
Yes
Yes
Yes
No
No
No
No
Yes
Interface error during
operation
End
Is CPU error type an
interface error of I/O
module or special
module ?
It’s a hardware error of
communication module.
Contact A/S center.
Is the installation
environment suitable for the
spec. ?
Is the communication
module installed in the main
base correctly ?
Is the impressed power
normal ?
Verify the impressed power/
voltage.
Install the communication
module correctly.
Perform the troubleshooting
for CPU.
Install the error module
correctly.
Change the condition of
installation environment
suitable for the spec.