Chint Instrument (DSU666,DTSU666) data logging - MODBUS registers map


This data is being extracted with the help of the Advanced Serial Data Logger (MODBUS RTU,ASCII) or Advanced TCP/IP Data Logger (MODBUS TCP) software only. It may not applicable for other software titles.

MODBUS offset
Description
Units
Data type
1
Programming password code
 
smallint
2
Electric energy zero clearing clr.e
 
smallint
6
Current transformer ratio (irat)
 
smallint
7
Potentia1 transformer ratio (urat)
 
smallint
11
Meter type (meter type)
 
smallint
47
Second
 
smallint
48
Minute
 
smallint
49
Hour
 
smallint
50
Day
 
smallint
51
Month
 
smallint
52
Year
 
smallint
8192
Line line voltage (uab)
V
float
8194
Line line voltage (ubc)
V
float
8196
Line line voltage (uca)
V
float
8198
Phase phase voltage (ua)
V
float
8200
Phase phase voltage (ub)
V
float
8202
Phase phase voltage (uc)
V
float
8204
The data of three phase current (ia)
A
float
8206
The data of three phase current (ib)
A
float
8208
The data of three phase current (ic)
A
float
8210
Conjunction active power
W
float
8212
A phase active power (pa)
W
float
8214
B phase active power (pb)
W
float
8216
C phase active power (pc)
W
float
8218
Conjunction reactive power (qt)
var
float
8220
A phase reactive power (qa)
var
float
8222
B phase reactive power (qb)
var
float
8224
C phase reactive power (qc)
var
float
8234
Conjunction power factor (pft)
 
float
8236
A phase power factor (invalid when three phase three wire) (pfa)
 
float
8238
B phase power factor (invalid when three phase three wire) (pfb)
 
float
8240
C phase power factor (invalid when three phase three wire) (pfc)
 
float
8260
Frequency (freq)
 
float
8272
Total active power demand (dmpt)
 
float
16414
Positive active (current, imp)
 
float
16424
Negative active total energy (current, exp)
 
float
16434
Quadrant 1 reactive total energy (current)
 
float
16444
Quadrant 2 reactive total energy (current)
 
float
16454
Quadrant 3 reactive total energy (current)
 
float
16464
Quadrant 4 reactive total energy (current)
 
float
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