User's Manual

RS232-Transponder Reader
(SECS1-Protocol), Release 0.3 Draft Page 42 of 91
2000-09-29
ID: ID000093
8.2.2 Data Items:
The formats represent arrays of types: <type>[number of elements] where <type> is
one of the following:
Data items examples:
Oct-Code Hex-Code Format Meaning Example
00 01 List
List element with the
number of the „Length“
data elements
<L2>
<A “H
ello“>
<B 0x00>
11 25 Boolean
1 – Byte Boolean
false = 00 ; true != 00
<I1 123>
10 21 Binary
Byte sequence of the
length „Length“
<I1 123>
20 41 Ascii Printable Ascii signs
31 65 I1 1 - Byte signed Integer
<I1 123>
32 69 I2 2 - Byte signed Integer
<I2
–12345>
34 71 I4 4 - Byte signed Integer
<I4 2147483647>
30 61 I8 8 - Byte signed Integer
<I8
–931372980293834>
51 A5 U1 1 - Byte unsigned Integer <U1 0>
52 A9 U2 2 - Byte unsigned Integer
<U2 #empty>
54 B1 U4 4 - Byte unsigned Integer <U4 429489725>
50 A1 U8 8 - Byte unsigned Integer
<U8 763468676756767>
40 91 F8 8 - Byte floating point <F8 1.223 e204>
44 81 F4 4 - Byte floating point
<F4
-1.23 >
Meaning Format Length
1- Byte Integer 65 01 xx
4- Byte Integer 71 04 MSB ... ... LSB
ASCII 41 06 1.chr 2.chr 3.chr 4.chr 5.chr 6.chr
zero-length xx 00
List Data Item 01 03 1. element 2. element 3. element