Shenzhen Just Motion Control electromechanics co., ltd

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Host send format:

Slave Address Function Number Data Start Address Number of Modified Data First Data…… CRC

Slave sending format:

Slave Address Function Number Data Start Address Number of Modified Data CRC

10.4.4 Data start address

Hexadecimal range: 0000H-FFFFH

Decimal range: 0001-65535

For example, for some Scada software, to read the value in the save register, the address format

should be 4 (XXXXX), where XXXXX is a decimal address.

Table 1.4 Function number 10 examples

host package definition

hexadecimal

Slave Package Definition

hexadecimal

address

address

slave address

01H

slave address

01H

function number

10H

function number

10H

Data start address high byte E0H

Data start address high byte E0H

Data start address low byte 01H

Data start address low byte 01H

Setpoint Number High Byte 00H

Setpoint Number High Byte

00H

Setpoint Number Low Byte

03H

Setpoint Number Low Byte

03H

Number of bytes

06H

CRC Low Byte

E6H

Data 1 High Byte

00H

CRC High Byte

08H

Data 1 Low Byte

01H

Data 2 High Byte

00H

Data 2 Low Byte

01H

Data 3 High Byte

00H

Data 3 Low Byte

01H

CRC Low Byte

4DH

CRC High Byte

46H

177