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model 2000 DeviceNet Module Manual (DN611/DN611A)
Chapter 6 RAS Information (Except for RAS Area in Communication Memory)
6
6.3.2
Event History
When request information type 2 is set for RAS information read request, event history
data can be read into the acknowledgement area.
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 DN611 internal information.
See Table 6-5 and Table 6-6 for the contents of the binary codes. Note, however,
that the time is displayed in BCD.
F
0
Figure 6-1 Event History Composition (2 events read)
02D0H
Request code (0015H)
02D1H
Completion status
02D2H
Number of RAS information
words
n pieces x words
02D3H
Event history
(maximum 80 words)
:
:
02D3H
Event code
02D4H
Detail information 1
02D5H
Detail information 2
1st event history
02D6H
Detail information 3
02D7H
Detail information 4
02D8H
Month
Year
02D9H
Hour
Day
02DAH
Second
Minute
02DBH
Event code
02DCH
Detail information 1
02DDH
Detail information 2
02DEH
Detail information 3
2nd event history
02DFH
Detailed information 4
02E0H
Month
Year
02E1H
Hour
Day
02E2H
Second
Minute