Modbus Overview; Value, Scale Factor, And Units; Read/Write; Xgi1500 Smart Grid Features - YASKAWA SOLECTRIA XGI 1500 SOLECTRIA XGI Manual

Modbus Map SOLECTRIA XGI 1500 (Rev A)
2

Modbus Overview

Registers can be read using Modbus function code three (3) and certain registers can be written with Modbus
function code six (6). When reading or writing to a group of registers, such as reading a string, make sure that
the read command starts at the lowest address of the group and is of the appropriate length size for the
group.
2.1

Value, Scale Factor, and Units

Many registers use a scale factor to communicate the value as an integer. The scale factor and units explain
how the value is read. See Equation 2.1 as an example of how to interpret the result of reading Address 40075,
as shown in Table 2.1.
Address Size Name
40075 1 AphC
40076 1 A_SF
2.2

Read/Write

The R/W column determines whether a value is read-only (R), write-only (W), or read-write (RW). Only write
to W or RW registers.
3

XGI1500 Smart Grid Features

The XGI1500 firmware provides several grid support features to help maintain grid stability and reliability.
These features can either be activated, deactivated or updated via web-based GUI or using software which
supports Modbus TCP/IP.
DOCR-XXXXXX
Table 2.1 - Example of Value, Scale Factor, and Units
Value Type
- uint16
-1 uint16
Equation 2.1 - Example of Applying Value, Scale Factor, and Units
��ℎ������ �� ���� �������������� = ���������� (�������������� 40075) ∗ 10
Units Scale factor R/W Description
A A_SF
- -
R Phase C AC current
R Scale factor - AC current
−1
��
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