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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.
F0
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
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