Electro Industries Shark 200 Installation & Operation Manual page 247

same channel. The Return PQ record, which represents the end of a PQ event, will end
the TRUE sequence by having its flag set to FALSE for that channel.
From the event channel byte array perspective, whenever a change occurred within
the present states byte array, it sets its flag for that channel to TRUE. Whenever that
channel reverts back to its previous state, then the event channel flag will be trig-
gered again (set to TRUE) for that channel.
The following is a snippet of the present state and event channel byte arrays:
NOTE: x = TRUE, empty = FALSE)
Present State (snippet)
PQ Va Vb
Record Surge Surge
0
1
2 x
3 x x
4 x
5 x
6 x
7 x
8
9
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The Leader In Power Monitoring and Smart Grid Solutions
Vc
Timestamp
Surge
2013/04/01
02:10:13
PM
2013/04/01
02:10:14
PM
2013/04/01
02:10:15
PM
2013/04/01
02:10:16
PM
x 2013/04/01
02:10:17
PM
x 2013/04/01
02:10:18
PM
2013/04/01
02:10:19
PM
2013/04/01
02:10:20
PM
2013/04/01
02:10:21
PM
2013/04/01
02:10:22
PM
B: Modbus Map and Retrieving Logs
Event Channel (snippet)
PQ Va Vb
Record Surge Surge
0
1
2 x
3
4
5
6
7
8 x
9
#
Doc E149701
Vc
Timestamp
Surge
2013/04/01
02:10:13 PM
2013/04/01
02:10:14 PM
2013/04/01
02:10:15 PM
2013/04/01
02:10:16 PM
x 2013/04/01
02:10:17 PM
2013/04/01
02:10:18 PM
2013/04/01
02:10:19 PM
2013/04/01
02:10:20 PM
2013/04/01
02:10:21 PM
2013/04/01
02:10:22 PM
B-63