Advertenties
Beschikbare talen
Beschikbare talen
All manuals and user guides at all-guides.com
Example: Command to be sent <STX>SP000100FA<CRC><EOT>
Addition of S + P + 0 + ... in hexadecimal (0x53 + 0x50 + 0x30 + 0x30 + 0x30 + 0x31 + 0x30
+ 0x30 + 0x46 + 0x41 = 0x024B)
Only the lower 8 bit of the checksum are sent:
0x024B --> 4B is sent.
Result: <STX>SP000100FA4B<EOT>
b) Addressing of the Control Module
The address of a transponder reader (<ADR>) results from byte 0 of the serial number.
Independently of the set control module address, each device answers to address FF.
c) Commands of the Control Module
There are two types of commands:
<COMMAND>
<SUBCOMMAND>
Commands and their subgroups are always to be sent as one ASCII character.
Command: Hello (H)
Command description: Outputs the designation and version number of the control module
(this command needs no CRC). The control module answers with „XRDVab" (a = firmware
version, b = hardware version).
Format:
<STX><ADR>H<EOT>
Example:
<STX>FFHD4<EOT>
<STX>XRDV17AC<EOT>
Command: Load (L)
Command description: Loads data or settings from the transponder reader into the PC.
Format:
<STX><ADR>L<SUBCOMMAND><INDEX><CRC><EOT>
60
General command
Subgroups of a command
Advertenties
