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B.1: Introduction
The Modbus Map for the Shark 100 Meter gives details and information about the possible readings
of the meter and about the programming of the meter. The Shark 100 can be programmed using the
buttons on the face plate of the meter (Chapter 7). The meter can also be programmed using
software. For a Programming Overview, see section 5.2 of this manual. For further details see the
Communicator EXT 3.0 Manual.
B.2: Modbus Register Map Sections
The Shark 100 Modbus Register Map includes the following sections:
Fixed Data Section, Registers 1- 47, details the Meter's Fixed Information described in Section 7.2.
Meter Data Section, Registers 1000 - 5003, details the Meter's Readings, including Primary
Readings, Energy Block, Demand Block, Maximum and Minimum Blocks, THD Block, Phase Angle
Block and Status Block. Operating Mode readings are described in Section 7.3.4.
Commands Section, Registers 20000 - 26011, details the Meter's Resets Block, Programming Block,
Other Commands Block and Encryption Block.
Programmable Settings Section, Registers 30000 - 30067, details the Meter's Basic Setups.
Secondary Readings Section, Registers 40001 - 40100, details the Meter's Secondary Readings
Setups.
B.3: Data Formats
ASCII:
SINT16/UINT16: 16-bit signed/unsigned integer.
SINT32/UINT32: 32-bit signed/unsigned integer spanning 2 registers. The lower-addressed
FLOAT:
e
Electro Industries/GaugeTech
Appendix B
Modbus Mapping for Shark
ASCII characters packed 2 per register in high, low order and without any
termination charcters.
Example: "Shark 100" would be 4 registers containing 0x5378, 0x6172,
0x6B31, 0x3030.
register is the high order half.
32-bit IEEE floating point number spanning 2 registers. The lower-addressed
register is the high order half (i.e., contains the exponent).
Doc # E145701
B-1
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