144
DNP 3.0 and MODBUS Data Structures
DNP
Modbus
Quantity
Full Scale
Type:Index
Input Reg.
PIc:36
30801–30802
A Qh Received Register
32-bit integer
PIc:37
30803–30804
C Qh Received Register
32-bit integer
PIc:38
30805–30806
B Qh Received Register
32-bit integer
PIc:39
30807–30808
Total Qh Received Register
32-bit integer
PIc:40
30809–30810
A Volt-Squared Hour Register
32-bit integer
PIc:41
30811–30812
C Volt-Squared Hour Register
32-bit integer
PIc:42
30813–30814
B Volt-Squared Hour Register
32-bit integer
PIc:43
30815–30816
Total Volt-Squared Hour Register
32-bit integer
PIc:44
30817–30818
A Amp-Squared Hour Register
32-bit integer
PIc:45
30819–30820
C Amp-Squared Hour Register
32-bit integer
PIc:46
30821–30822
B Amp-Squared Hour Register
32-bit integer
PIc:47
30823–30824
Total Amp-Squared Hour Register
32-bit integer
PIc:48
30825–30826
A Volt-Hour Register
32-bit integer
PIc:49
30827–30828
C Volt-Hour Register
32-bit integer
PIc:50
30829–30830
B Volt-Hour Register
32-bit integer
PIc:51
30831–30832
Total Volt-Hour Register
32-bit integer
PIc:52
30833–30834
A Amp-Hour Register
32-bit integer
PIc:53
30835–30836
C Amp-Hour Register
32-bit integer
PIc:54
30837–30838
B Amp-Hour Register
32-bit integer
PIc:55
30839–30840
Total Amp-Hour Register
32-bit integer
PIc:56–63
30841–30842
Reserved Registers (8) (16 values)
32-bit integer
For technical details on how the Model 1133A measures energy data, see Section 11.8
Returned values are count values and are scaled in customers application software.
Indices in boldface represent 32-bit values, 2 16-bit values each. Little endian means that the lower-
indexed value contains the lower half (16 least-significant bits) of the 32-bit quantity. Example:
to find the A Active Energy Delivered 32-bit value, use: 65536 * DNP[729]+ DNP[728]. 32-bit
register values are scaled according to the values of Kp set separately using PSCSV configuration.
13.9
Trigger Status
DNP
Modbus
Quantity
Full Scale
Type:Index
Input Reg.
BI:0
30843–30844
DSP Trigger Status
32-bit bitfield
Table 13.7: Trigger Status Values
Notes:
Bitfield:
AI indicates analog-input point, CT indicates Counter Point, BI indicates Binary Input
Values are “Little Endian. See Introduction at the beginning of Appendix A.
