Hitachi S10VE, Руководство пользователя

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13. Troubleshooting
13-85
(2) Troubleshooting procedure for the remote I/O line
If a timeout has occurred in a station module connected to the remote I/O line, follow the instructions
in Figure 13-21 to troubleshoot the problem.
Figure 13-21 Troubleshooting procedure for the remote I/O line
Has the timeout been eliminated?
Has the timeout been eliminated?
Has the timeout been eliminated?
Are the LEDs of the station modules and
the remote I/O optical adapter on correctly?
No
Start
See 13.2.3.3, and then check the status of the
registered station and timeout station of the
system register.
Yes
Check and correct the CPU module settings
according to
Table 13-34 Detailed check items
1 . Correct any mistakes.
Yes
No
Yes
Yes
No
Are the LEDs of the station modules and the
remote I/O optical adapter on correctly?
Check and correct the problem according to
Table 13-34 Detailed check items 2 . Correct
any mistakes.
No Replace the station module and the
remote I/O optical adapter.
Check and correct the cabling and the power
supply to each unit according to
Table 13-34
Detailed check items 3 . Correct any mistakes.
Replace the station module with the address for
which the timeout occurred.
Yes
Has a timeout occurred?
Has a timeout occurred somewhere
with respect to the address of a
connected station module?
a
Yes
Finish
Go to a in the troubleshooting
flow shown in Figure 13-22.
b
No
No