Toshiba DeviceNet nv Series Instruction Manual page 128

Chapter 6 Troubleshooting
■Event History
When request information type 2 is set for RAS information read request, event history data can be read into
the acknowledgement area.
Event history composition
 Record capacity: 8 words
 Number of records: 160
Operation in case of overflow: Old information is refreshed. Thus, 160 of event traces can always be

checked from new information.
 Format: Binary code is used because the format is for DN611B internal information. See Table 6-18 for
the contents of the binary codes.
Note, however, that the time is displayed in BCD.
112
6F8C1686
Acknowledgement area.
F 8 7
02D0H Request code (0015H)
02D1H Completion status
02D2H Number of RAS information
words
02D3H Event history
:
:
F
02D3H
Event code
02D4H
Detail information 1
02D5H
Detail information 2
02D6H
Detail information 3
02D7H
Detail information 4
02D8H
Month
02D9H
Hour
02DAH
Second
02DBH
Event code
02DCH
Detail information 1
02DDH
Detail information 2
02DEH
Detail information 3
02DFH
Detailed information 4
02E0H
Month
02E1H
Hour
02E2H
Second
Figure 6-2 Event History Composition (2 events read)
0
n pieces x words
(maximum 8 words)
0
1st event history
Year
Day
Minute
2nd event history
Year
Day
Minute