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

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