70
MODSCAN,the read-out value Val_t=110000, then Val_s =Val_t*0.01=1100W.
For example: To read phase positive active energy IMP, the data can be read at address 3050-3051 in Floating Pt reading mode by
MODSCAN,the read-out value Val_t=589000, then Val_s ＝Val_t*1=589000Wh=589kWh.
2.5 Harmonic data of voltage and current
The series of measured values are read with 03 command of the Modbus-RTU communication protocol. Each item occupies 1 word.
The resolution is 0.01, and the correspondence between the communication value and the actual value is as follows:
Val_s=(Val_t*0.01).
For example: To read current 3rd harmonic content, the data can be read at address 4501 in Integer reading mode by MODSCAN,
the communication readout Val_t is 157, then Val_s = (Val_t*0.01)%=1.57%.
2.6 Demand
Demand includes three phase currents and active power, reactive power, and the maximum demand of apparent power and time of
occurrence. The demand data format is as follows:
Year (Only a bit is reserved, ten bit
needs to be filled in according to the
current time)
Note: H8 indicates eight high bits, L8 indicates eight low bits,and others are similar.
Take reading the maximum demand of phase A current (1200~1203) as an example, the read-out value is 0x0000 0x157C 0x7512
0x0E16
17 (ten bit needs to be filled in
according to the current time)
The maximum demand for Phase A current is: At 14:22 on May 18, 2017, the demand value is 5.500A.
2.7 Event Record
Event record 1 - event record 16, recorded in order of time, that is, event record 1 records the data of the most recent event, and
event record 16 records the data of the earliest event, the data format of each event record is as follows:
Take reading the event record 1 (2200~2203) as an example, the read-out value is 0x4000 0x1101 0x160D 0x3820.
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