Brooks LF80C - Page 87

Brooks Automation
278580 Revision A 75
LF80C ZeniD RFID Reader 7 Operation
Product Manual 7.3 Operation of SECS Protocol
A list is an ordered set of elements, whereby an element can be either an
item or a list. The list header has the same form as an item header with
format type 0. However, the length byte refers to the number of elements
in the list rather than to the number of bytes.
Data items The formats represent arrays of types: <type>[number of elements],
whereby <type> is one of the following:
Oct-
code
Hex-
code
Format Meaning Example
00 01 List List element with
the number of
the "Length" data
elements
<L2>
<A "Hello">
<B 0x00>
11 25 Boolean 1-byte Boolean
false = 00
true = 01
<Boolean1 0x00>
10 21 Binary Byte sequence
of the length
"Length"
<B1 0x01>
20 41 ASCII Printable ASCII
characters
<A "Hello">
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 >