Appendix
A.2 Modbus RTU
SENTRON PAC3100
132 Manual, 07/2009, A5E02385159B-01
Offset Number of
registers
Name Format Unit Value range Access
131 2 Minimum apparent power c Float VA - R
133 2 Minimum active power a Float W - R
135 2 Minimum active power b Float W - R
137 2 Minimum active power c Float W - R
139 2 Min. reactive power a (VAR1) Float var - R
141 2 Min. reactive power b (VAR1) Float var - R
143 2 Min. reactive power c (VAR1) Float var - R
145 2 Min. neutral current Float A - R
147 2 Min. frequency Float Hz 45 ... 65 R
155 2 Min. total apparent power Float VA - R
157 2 Min. total active power Float W - R
159 2 Min. total reactive power (VAR1) Float var - R
161 2 Min. total power factor Float - R
205 2 Device diagnostics and device status* Unsigned long - Byte 1 system
status
R
207 2 Status of the digital outputs* Unsigned long - Byte 3
Bit 0 = output 0
Bit 1 = output 1
R
209 2 Status of the digital inputs* Unsigned long - Byte 3
Bit 0 = input 0
Bit 1 = input 1
R
217 2 Relevant parameter changes counter Unsigned long - - R
219 2 Counter all parameter changes Unsigned long - - 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
801 4 Active energy (import, export, balance) Double Wh Overflow 1.0e+12 RW
805 4 Reactive energy (import, export,
balance)
Double varh Overflow 1.0e+12 RW
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