Appendix
A.3 MODBUS
SENTRON PAC4200
236
System Manual, 09/2009, A5E02316180B-02
Offset
Number of
registers
Name
Format
Unit Value range
Access
491
2
Demand active power import in the current
period
Float
W
-
R
493
2
Demand reactive power import in the
current period
Float
VAR -
R
495
2
Demand active power export in the current
period
Float
W
-
R
497
2
Demand reactive power export in the
current period
Float
VAR -
R
499
2
Cumulated apparent power in the current
period
Float
VA
-
R
501
2
Cumulated active power import in the
current period
Float
W
-
R
503
2
Cumulated reactive power import in the
current period
Float
VAR -
R
505
2
Cumulated active power export in the
current period
Float
W
-
R
507
2
Cumulated reactive power export in the
current period
Float
VAR -
R
509
2
Maximum active power in the current period Float
W
-
R
511
2
Minimum active power in the current period Float
W
-
R
513
2
Maximum reactive power in the current
period
Float
VAR -
R
515
2
Minimum reactive power in the current
period
Float
VAR -
R
517
2
Length of the current period
Unsigned long s
-
R
519
2
Time since the start of the instantaneous
period
Unsigned long s
-
R
521
2
Actual Subinterval Time
Unsigned long s
-
R
Byte 0 Bit 0 Tariff
information
Byte 1 Bits 0 ... 3
Quality information
Byte 2 Reserve
523
2
Information on Last Period
Float
VA
Byte 3 Bits 0 ... 3
Reactive power
information
R
525
2
Maximum apparent power in the current
period
Float
VA
-
R
527
2
Minimum apparent power in the current
period
Float
VA
-
R
529
2
Cumulated active power import in the
instantaneous period
Float
W
-
R
531
2
Cumulated reactive power import in the
instantaneous period
Float
VAR -
R
533
2
Cumulated active power export in the
instantaneous period
Float
W
-
R