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the slave. The slave responds with a packet containing the requested parameter values within the

range specified in the original request.

In the following example, the master device requests a slave at 01 to send the values in two

registers, the start register being 00001, and the slave replies with the values 3031H and 3037H

from registers 00001 and 00002.

Host send format:

Slave Address Function No. Data Start Address Number of Data Read CRC

Slave sending format:

Slave Address Function Number Bytes Value of each data CRC

Table 1.2 Function Number 03 Example

host

package hexadecimal

Slave Package Definition hexadecimal address

definition

address

slave address

01H

slave address

01H

function number

03H

function number

03H

Data start address high 00H

Number of bytes

04H

byte

Data start address low 01H

Data 1 High Byte

30H

byte

Register Number High 00H

Data 1 Low Byte

31H

Byte

Register Number Low 02H

Data 2 High Byte

30H

Byte

CRC Low Byte

95H

Data 2 Low Byte

37H

CRC High Byte

CBH

CRC Low Byte

F1H

CRC High Byte

2AH

10.4.2 Function No. 06: Adjust a single register

This feature allows the master to modify a single register on the Nexus slave, the data register

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