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B-1
B: Shark® 100 Meter Modbus Map
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B: Shark® 100 and 50 Meter Modbus Maps
B.1: Introduction
The Modbus maps for the Shark® 100/50 meter gives details and information about
the possible readings of the meter and about the programming of the meter. The
Shark® 100/50 can be programmed using the buttons on the face plate of the meter
(Chapter 6). The meter can also be programmed using software (Chapter 6).
B.2: Modbus Register Map Sections
The Shark® 100/50 Modbus register map includes the following sections:
Fixed Data Section, Registers 1- 47, details the Meter’s Fixed Information
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 6.2.6
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:
ASCII characters packed 2 per register in high,
low order and without any termination characters.
SINT16/UINT16:
16-bit signed/unsigned integer.
SINT32/UINT32:
32-bit signed/unsigned integer spanning 2
registers. The lower-addressed register is the
high order half.