Eaton IQ 250, User & Installation Manual

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Appendix C:
IQ 250/260 Meter Using DNP Mapping for IQ 250/260
www.eaton.com IB02601006E C-3
DNP Lite Register Map
Object 10 – Binary Output States
Object Point Var Description Format Range Multiplier Units Comments
10 0 2 Reset Energy
Counters
BYTE Always 1 N/A None Read by Class 0 Only
10 1 2 Change to Modbus
RTU Protocol
BYTE Always 1 N/A None Read by Class 0 Only
10 2 2 Reset Demand
Cntrs (Max / Min )
BYTE Always 1 N/A None Read by Class 0 Only
Object 12 – Control Relay Outputs
Object Point Var Description Format Range Multiplier Units Comments
12 0 1 Reset Energy
Counters
N/A N/A N/A none Responds to Function 5
(Direct Operate), Qualifier
Code 17x or 28x, Control
Code 3, Count 0, On 0 msec,
Off 1 msec ONLY.
12 1 1 Change to
Modbus RTU
Protocol
N/A N/A N/A none Responds to Function 6
(Direct Operate - No Ack),
Qualifier Code 17x, Control
Code 3, Count 0, On 0 msec,
Off 1 msec ONLY.
12 2 1 Reset Demand
Counters (Max /
Min)
N/A N/A N/A none Responds to Function 5
(Direct Operate), Qualifier
Code 17x or 28x, Control
Code 3, Count 0, On 0 msec,
Off 1 msec ONLY.
Object 20 – Binary Counters (Primary Readings) - Read via Class 0 only
Object Point Var Description Format Range Multiplier Units Comments
20 0 5 W-hours,
Positive
UINT32 0 to
99999999
Multiplier = 10(n-d),
where n and d are
derived from the
energy format. n =
0, 3, or 6 per
energy format scale
and d = number of
decimal places.
W hr example:
energy format = 7.2K and W-
hours counter = 1234567 n=3
(K scale), d=2 ( 2 digits after
decimal point), multiplier =
10(3-2) = 101 = 10, so energy
is 1234567 * 10 Whrs, or
12345.67 KWhrs
20 1 5 W-hours,
Negative
UINT32 0 to
99999999
W hr
20 2 5 VAR-hours,
Positive
UINT32 0 to
99999999
VAR
hr
20 3 5 VAR-hours,
Negative UINT32 0 to
99999999
VAR
hr
20 4 5 VA-hours, Total UINT32 0 to
99999999
VA hr