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C: DNP Mapping
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
Electro
Industries/GaugeTech
The Leader In Power Monitoring and Smart Grid Solutions
C: DNP Mapping
C.1: Overview
This Appendix describes the functionality of the Shark® 200S meter's version of the
DNP protocol. A DNP programmer needs this information to retrieve data from the
Shark® 200S meter. The DNP version used by the Shark 200S is a reduced set of the
Distributed Network Protocol Version 3.0 subset 2; it gives enough functionality to get
critical measurements from the Shark® 200S meter.
The Shark® 200S meter's DNP version supports Class 0 object/qualifiers 0,1,2,6,
only. No event generation is supported. The Shark® 200S meter always acts as a sec-
ondary device (slave) in DNP communication.
A new feature allows DNP readings in primary units with user-set scaling for current,
Voltage, and power (see Chapter 5 in the
Communicator EXT User Manual
for instruc-
tions).
C.2: Physical Layer
The Shark® 200S meter's DNP version uses serial communication. Port 2 (RS485
compliant port) or any communication capable option board can be used. Speed and
data format is transparent for the Shark® 200S meter's DNP version: they can be set
to any supported value. The IrDA port cannot use DNP.
C.3: Data Link Layer
The Shark® 200S meter can be assigned a value from 1 to 65534 as the target
device address. The data link layer follows the standard frame FT3 used by DNP Ver-
sion 3.0 protocol, but only 4 functions are implemented: Reset Link, Reset User,
Unconfirmed User Data, and Link Status, as depicted in the following table.
Table C.1: Supported Link Functions
Function
Function Code
Reset Link
0
Reset User
1
Unconfirmed User Data
4
Link Status
9
Summary of Contents for Shark 200S
Page 1: ...S h a r k 200S ...
