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High Light: | IO Controller,input output controller |
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High-precision Ethernet IO Controller , Hexadecimal - ASCII Code
High-precision Thermo Hygrometer
Hexadecimal - ASCII code of the transfer
Command start from the start code <SOH>, recipient address code <receiver>, DATA, <BCC> checking bit, <EOT> end of the code structure, the user as long as delivery the recipient address code, DATA content on the line, the sending program will automatically add the start code ,checking and end code, please see below details:
Host machine sending:
No. |
1 |
2 |
3 |
4 |
5 |
byte |
1 |
2 |
LENGTH |
1 |
1 |
Form |
SOH |
Receiver |
DATA |
BCC |
EOT |
<SOH> : the start code of sending the title (ASCII HEX 01)
<EOT>: Data transmission end code (ASCII HEX 04)
<Receiver>: Two ASCII characters is the information of recipient address code (“01-FE”).
<BCC>: Parity bit,
Explanation are in hexadecimal, Hexadecimal - ASCII code of the transfer, with two each byte ASCII code, a ASCII is representation of a high four bit , and ASCII is also representation a low four. For Example:
DATA=DOH,Transmission 44H 4F two bytes sequencing
Communication structure as following:Sender host: <SOH> <receiver> <transm> <STX> DATA <ETX> <BCC> <EOT>/ / Receiver from the machine: <SOH> <receiver> <transm> <STX> DATA <ETX> <BCC> <EOT
Each computer has its own transmission address from the machine it has been allocated in the initialization of the address, the address stored is just a variable from the machine store, the address is composed of two ASCII characters, description will hex number from 00 to FF, the host address 00 is reserved, FF is the broadcast address for all from the computer, therefore, each system circuit up to 254 computers from the components, can be set using the Set Address command. All communications contained in the DATA command, which transmitted. in ASCII format
Contact Person: Mr. Brandy Xie
Tel: +86-755-27886063 Ext.602
Fax: 86-755-27886083