Appendix
A.2 Modbus RTU
SENTRON PAC3100
Manual, 07/2009, A5E02385159B-01
135
Offset Number of
registers
Name Unit Format Value range Access
0 = Normal direction
1 = Inverted direction
Bit 0 L1
Bit 1 L2
50019 2 Invert CT polarity
by phase
- unsigned long
Bit 2 L3
RW
50021 2 Demand period Min. unsigned long 1 ... 60 RW
0 = No synchronization50023 2 Synchronization - unsigned long
1 = Synchronization
via bus
RW
LOWORD: kWh
HIWORD: kVARh
0-2
0 = Import
1 = Export
50025 2 Energy counting - unsigned long
2 = Balance
RW
Table A- 12 Settings parameter for the digital output DO 0.0
Offset Number of
registers
Name Unit Format Value range Access
50033 2 DO 0.0 Vector Group
Assignment
- unsigned long 0 ... 99 RW
0 = Off
1 = Remote output
50035 2 DO 0.0 Type of use - unsigned long
2 = Energy pulse
RW
0 = Import kWh
1 = Export kWh
2 = Import kVARh
50037 2 DO 0.0 Source Count
Signal
- unsigned long
3 = Export kVARh
RW
50039 2 Pulses per unit (pulses
per 1000 Wh / VARh)
- unsigned long 1 ... 999 RW
50041 2 Pulse length ms unsigned long 30 ... 500 RW
Table A- 13 Settings parameter for the digital output DO 0.1
Offset Number of
registers
Name Unit Format Value range Access
50043 2 DO 0.1 Vector Group
Assignment
- unsigned long 0 ... 99 RW
0 = Off
1 = Remote output
50045 2 DO 0.0 Type of use - unsigned long
2 = Energy pulse
RW