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7BPOINT MAP
0BMODBUS RTU PROTOCOL
The following three points have a value of 48 bits, ordered from most to least
significant. Represents the date and the number of milliseconds elapsed since
midnight on January 1, 1970 (using format F10).
The following is an example of an event, where the information is read in sections 1102
to 1105:
1102: 0x8001
1103: 0x011D
1104: 0xD367
1105: 0xF588
In the example, the value 0x8001 indicates that the flag whose index is 1 changed to “1”
(bit 15 is “1”). In addition, it indicates that the date of change is 0x011DD367F588,
equivalent to 1’227.612’485.000 milliseconds elapsed since the beginning of January 1,
1970. This equals to November 25, 2008 at 11:28:00 with 0 milliseconds.
As 4 points are used for each event; up to 31 events can be read in a MODBUS
message with function code 3 or 4.
Once the master station has read the events, it must indicate this specifically. This is
done by writing any value at point 1101. Once the smART P500 receives the writing in
point 1101, it considers that the master has already read or does not require the events
available. As many events as indicated in the final reading of point 1100 are discarded.
That is, if in the process of reading the number of available events, reading the event
information and writing of point 1101 additional events occur, they are not lost; they
could be recovered once the master station re-reads the 1100.
Summarizing, to retrieve the events information the master station must implement the
following algorithm (in pseudo code):
Summary of Contents for smART P500
Page 1: ...Instruction Manual Multifunction Protection Relay smART P500...
Page 23: ...2BTABLES INDEX THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY...
Page 39: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 9 Wye Wye Connection measured neutral...
Page 40: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 10 Wye Wye Connection sensitive neutral...
Page 41: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 11 Open Delta Connection measured neutral...
Page 42: ...5BHARDWARE FEATURES INTRODUCTION Figure 1 12 Open Delta Connection sensitive neutral...
Page 511: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 6 Moderately ANSI curve...
Page 513: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 7 Very inverse ANSI curve...
Page 515: ...2BANSI CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 8 Extremely inverse ANSI curve...
Page 532: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 14 Recloser Curves 101 119...
Page 535: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 15 Recloser Curves 120 142...
Page 538: ...4BRECLOSER CURVES 0BCURVES FOR TIME CHARACTERISTICS Figure I 16 Recloser Curves 151 202...