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User Manual of A90 Series Inverter

273

Common function

code

User-defined

function code

Common function

code

User-defined function

code

Common function

code

1（0x1）

65（0x41）

72（0x48）

127（0x7F）

100（0x64）

110（0x6E）

Fig. 0-2 Classification of MODBUS Function Codes

As shown in Table 0-1, A90 series products mainly involve

common function codes

For example, 12.3.3.1 0x03: function code used to read multiple registers or status words,

12.3.3.5

0x06: function code used to write a single register or command, 12.3.3.6 0x10:

function code used to write multiple registers or commands, and 12.3.3.4 0x08: function

code for diagnosis.

In addition, for some specific functions, such as register writing (RAM) without

EEPROM storage, the

user-defined function codes

include 12.3.3.2 0x41: function code

used to write a single register or command (without saving), and 12.3.3.3 0x42: function

code used to write multiple registers or commands (without saving).

When the abnormal valid data is received from a device, a related abnormality

message will be returned (see 0 Exception response). The abnormality function code is

defined to distinguish the abnormal data from normal communication data. Corresponding

to the normal request function code, the

abnormality function code = request function

code + 0x80

Table 0-1 Function Code Definitions of A90 series Product

Function

code

Abnormality

function code

Function

This function code is used to read multiple registers or

status words.

This function code is used to write a single register or

Brand	Sinee
Model	A90-4T5R6B
Category	Inverter
Language	English

Sinee A90-4T5R6B User Manual

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Sinee A90-4T5R6B Specifications

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