Celexon HomeCinema Electric Tension screen Betriebshandbuch - Seite 9

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Celexon HomeCinema Electric Tension screen Betriebshandbuch

Operation of the screen

Using RS485

1) Mode of connection ( marked as 485-A white wire 485-B black wire )

2) Communication parameters

Baud rate:9600 data bits:8 stop bit:1 check bit:None

3) Communication protocol

Advice

485-A White cable

Start

Device address

code

0x55

ID0

1BYTE

485-B Black cable

Start

Device address

code

0xAA

ID0

1BYTE

A) Start Code: 485-A 0x55

Start Code: 485-B 0xAA

B) 2 device address : 4 Bytes(ID0 is the highest , ID3 is the lowest),With a common

control, the device address is 0x0000000000. If the control occurs together and

the ID is not explicitly mentioned, 485-B does not respond.

C) Check code: Checked by CRC16(start code+device address + Command code+

Command value)

ID1

ID3

ID4

1BYTE

ID1

ID3

ID4

1BYTE

command

Command

code

value

COMMAND

DATA

1BYTE

nBYTE

command

Command

code

value

COMMAND

DATA

1BYTE

nBYTE

Check code

(CRC16)

crcH

crcL

1BYTE

Check code

(CRC16)

crcH

crcL

1BYTE