Figure 13-21 Troubleshooting Procedure For The Remote I/O Line - Hitachi S10VE User Manual

(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.
b
No
Has a timeout occurred?
See 13.2.3.3, and then check the status of the
registered station and timeout station of the
system register.
Has a timeout occurred somewhere
with respect to the address of a
connected station module?
Check and correct the CPU module settings
according to Table 13-34 Detailed check items
1. Correct any mistakes.
Yes
Has the timeout been eliminated?
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.
Are the LEDs of the station modules and
the remote I/O optical adapter on correctly?
Yes
Has the timeout been eliminated?
Check and correct the cabling and the power
supply to each unit according to Table 13-34
Detailed check items 3. Correct any mistakes.
Yes
Has the timeout been eliminated?
Replace the station module with the address for
which the timeout occurred.
Finish

Figure 13-21 Troubleshooting procedure for the remote I/O line

Start
Yes
Yes
No
Yes
No
No
13-85
No
a
Go to a in the troubleshooting
flow shown in Figure 13-22.
No Replace the station module and the
remote I/O optical adapter.
13. Troubleshooting