9.24
SEL-2032 Communications Processor Instruction Manual Date Code 20120126
Protocols
Modbus RTU Protocol
Register Maps for
Demand Meter
Data,
Integer Type
The first eight registers of Modbus demand meter data are the collection date
and time stamp. This is the time the SEL-2032 received the demand data.
Register Maps for
History Data,
Integer Type
The first eight registers of the Modbus history data are the collection date and
time stamp. This is the time the SEL-2032 received the history data. The data
following the collection date and time stamp are a series of history records,
from most recent to oldest. The number of history records for each relay is
also indicated.
Table 9.9 Example Map for Demand Meter Data, Integer Type
Reg.# Description Units Range
For SEL-151/251,-1,-2,-3; SEL-151C/251C,-1,-2,-3; SEL-151CD/251CD,-1,-3; SEL-151D/251D,-1,-3:
2300(R) Demand Date stamp Month 1–12
2301(R) Demand Date stamp Day of the Month 1–31
2302(R) Demand Date stamp Year 0–99
2303(R) Demand Time stamp Hours 0–23
2304(R) Demand Time stamp Minutes 0–59
2305(R) Demand Time stamp Seconds 0–59
2306(R) Demand Time stamp Milliseconds 0–999
2307(R) Demand Date stamp Day of the week
(Sunday–0
•
•
•
Saturday–6)
0–6
2308(R) Phase Current IA A, primary Integer
2309(R) Phase Current IB A, primary Integer
2310(R) Phase Current IC A, primary Integer
2311(R) Residual Current IR A, primary Integer
2312(R) Negative Sequence 3I2 A, primary Integer
2313(R) Real Power P MW/10, primary ±3276.7 MW, pri
2314(R) Reactive Power Q MVAR/10, primary ±3276.7 MVAR, pri
2315(R) Peak Demand Phase Current IA A, primary Integer
2316(R) Peak Demand Phase Current IB A, primary Integer
2317(R) Peak Demand Phase Current IC A, primary Integer
2318(R) Peak Demand Residual Current IR A, primary Integer
2319(R) Peak Demand Negative Sequence 3I2 A, primary Integer
2320(R) Peak Demand Real Power P MW/10, primary ±3276.7 MW, pri
2321(R) Peak Demand Reactive Power Q MVAR/10, primary ±3276.7 MVAR, pri
Courtesy of NationalSwitchgear.com
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