LACO PROTOCOL DESCRIPTIONS TITANTEST™
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© 2018 LACO TECHNOLOGIES, INC. - TitanTest itra01en1-07 SB.fm - 1807
Cmd H/L: Command: Command-specifier
Command info
Data types
All data types are used in Big Endian format (Motorola format), i.e. the byte
with the highest-order bits is transferred first.
Arrays
Read single elements: Array index in first DATA-byte
Write single elements: Array index in first DATA byte and values in follow-
ing DATA bytes
Read all elements: Pseudo array index 255 in first DATA byte
Bit 15 ... 13 Meaning High Nibble (Hex)
000 Read value 0
001 Write value 2
010 Read lower limit 4
011 Read upper limit 6
100 Read default value 8
101 Read command name in plain text A
110 Read command info C
111 not used E
1. Byte Data type (see table “Data types”)
2. Byte Number of array elements:
0 = no data, no array
1 = data, no array
3. Byte Bit 0: 1 = Reading allowed, 0 = Reading not allowed
Bit 1: 1 = Writing allowed, 0 = Writing not allowed
Bit 2 ... 7: not used (always 0)
Value Meaning Acronym Comments
0Boolean
1 Signed 8 bit integer SINT8
2 Signed 16 bit integer SINT16
3 Signed 32 bit integer SINT32
4 Unsigned 8 bit integer UINT8
5 Unsigned 16 bit integer UINT16
6 Unsigned 32 bit integer UINT32
7 Character CHAR ISO 8859-1; printable charac-
ters
16 Signed 64 bit integer SINT64
17 Unsigned 64 bit integer UINT64
18 Floating point/real number FLOAT IEEE 754
20 no data NO_DATA For commands without data,
such as Start
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