User Guide

ManualsBrandsSeeedStudio ManualsInternet of Things (IoT)ORCH S4 4-in-1 Weather Sensor (Temperature/Humidity/Pressure/Light)

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User Guide

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read-only

0：None

1：Odd

2：Even

Stop Bit

0x0013

uint16,

read-write

3、6

0 ~ 1

0：1 Stop Bit

1：2 Stop Bit

0

Modbus

protocol

0x0014

uint16,

read-write

3、6

0-1

0：Modbus-RTU

1：Modbus-ASCII

0

Function Configuration Register

Delay

Response

0x0020

uint16,

read-write

3、6

0 ~ 65535

Unit: millisecond

10

Reserved

0x0021

⚫ Error Code

If an error occurs from the slave, an error response is returned.

Address

Error Function Code

Error Code

CRC Check

1 byte

1 byte

1 byte

2 byte

Request Code+0x80

0x1 ：Function code error

0x2 ：Register address error

0x3 ：Write or read data out of range

0x4 ：Slave internal error