Self-Diagnostic Items - Toshiba PROSEC T1-16S User Manual

10. Troubleshooting

10.2 Self-diagnostic items

If an error is detected by the self-diagnostic check of the T1-16S CPU, the error
messages and the related information shown on the following pages will be recorded
in the T1-16S's event history table. If the error is severe and continuation of operation
is not possible, the T1-16S turns OFF all outputs and stops the operation (ERROR
mode).
The latest 15 error messages are stored in the event history table. This event history
table can be displayed on the programming tool. (Power ON/OFF is also registered)
If the T1-16S has entered into ERROR mode, connect the programming tool to the T1-
16S to confirm the error message in the event history table. This information is
important to recover from a trouble. For the key operations on the programming tool to
display the event history table, refer to the separate manual for the programming tool.
(An example of the event history)
Date
1. 98-02-21
2. 98-02-21
3. 98-02-21
4. 98-01-15
5. 98-01-14
6. 98-01-14
In the event history table, No.1 message indicates the latest event recorded.
Each column shows the following information.
Date: The date when the error has detected (Enhanced model only)
Time: The time when the error has detected (Enhanced model only)
Event: Error message
Count: Number of times the error has detected by retry action
Info n: Related information to the error detected
Mode: T1-16S's operation mode in which the error has detected (INIT. means the
power-up initialization)
Down: Shows the T1-16S has entered into ERROR mode by the error detected
If the T1-16S is in the ERROR mode, operations to correct the program are not
accepted.
In this case, execute the Error reset operation by the programming tool to return the
HALT mode before starting the correction operation.
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T1-16S User's Manual
< Event History>
Time Event
16:48:01 I/O no answer
15:55:26 System power on
12:03:34 System power off
09:27:12 System power on
19:11:43 System power off
10:39:11 No END/IRET error
Count Info 1 Info 2 Info 3
3 #00-04
1
1
1
1
3 M-001 H0024
6F3B0253
Mode
RUN Down
INIT.
RUN
INIT.
HALT
HALT Down