AccuEnergy Acuvim II, Руководство пользователя

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The register list controls which Modbus registers are recorded in each historical
log record. Since many parameters, such as Voltage, Energy, etc., take up more
than 1 register, multiple registers are allocated for those parameters.
For example: In order to record "Volts AN" into the historical log, Volts AN's
Modbus address (4002H and 4003H) are assigned and programmed to the log
record list so that information can be stored into the historical log registers.
• Each unused register item should be set to 0000H or FFFFH to indicate no
parameters are associated with them.
• The actual size of the record, and the number of items in the register list which
are used, is determined by the registers in the header.
• Valid register address ranges that can be recorded in the historical log registers
are 4000H-412BH, 4294H-42A8H, 4349H-4398H, 4500H-461BH.
3) Item Descriptor List:
Registers: 1177H– 11B1H
Size: 1 byte per item, 117 bytes (59 registers)
While the register list describes what to log, the Item descriptor list describes
how to interpret that information. Each descriptor describes how many Modbus
addresses are used to describe a parameter. Either 1 or 2 addresses will be used
for each parameter.
For example: If the first descriptor is 2, and the second descriptor is 1, then
the first 2 register items belong to the 1
st
descriptor, and the 3
rd
register item
belongs to the 2
nd
descriptor.
NOTE: As can be seen from the example above, it is not a 1-to-1 relation
between the register list and the descriptor list. A single descriptor may refer to
two register items.
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