Dialoc ID MCQ-PRO, Руководство пользователя

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MCQ-PRO RFID Reader
— Installation and Tuning Manual Version 1.00
Page 84 of 89
11 Standalone Mode
Standalone mode makes it possible to use the device without the need for a host to control it.
In this case, only the tag reading operation is available.
When standalone mode is activated, the device automatically loads from NVRAM its last
saved radio configuration upon start-up and initiates a read session. Each time a read event
occurs, the device sends a frame over its serial port.
A watchdog can also be activated. In this case, a customizable frame is sent periodically over
the serial port to indicate the device is operating properly.
11.1 Standalone mode configuration
Open “Standalone Mode Configuration” panel by clicking on the icon
in the toolbar or by
choosing “Standalone Mode Configuration” in the “Device” menu.
11.1.1 Message format
A message frame is a sequence of bytes composed of several optional and customizable
ASCII fields.
For all radio events but “No Read” event, the frame has the following canonical format:
<Header><Tim Suffix><Radio ID + Suffix><Event Type><Channel
Suffix><Tag Type><Data (n digits)><Checksum><Footer>
Example:

Frame’s bytes as sent by device:
3C 32 30 30 37 2D 31 32 2D 30 34 20 31 32 3A 30 35 3A 34 35 3B 30 3B 54 41 47
52 45 41 44 3B 31 3B 49 43 4F 44 45 3B 43 44 45 46 30 31 32 33 34 35 36 37 38 39
41 42 32 31 3E 0D 0A

Frame’s bytes interpreted as a sequence of ASCII characters:
<2007-12-04 11:52:57;0;TAGREAD;1;ICODE;CDEF0123456789AB23>\0D\0A
“\0D\0A” represents carriage return (0x0D) and line feed (0x0A) non-printable characters.
The checksum is a byte value computed by applying exclusive-or (XOR) operation on all
frame's bytes sent before the checksum. In this example, it is equal to 0x23 in hexadecimal.
If no tag has been read (“No Read” event), the frame has the following canonical format:
<Header><Tim Suffix><Radio ID + Suffix><Event Type><No Read
Description><Checksum><Footer>