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8.1.6 Structure of the output buffer for various
commands
Command designator 00
hex
: No command present
Sub-
address
Meaning
Functional description
00
hex
1st bit
string
01
hex
Command
recognition
00
hex
: no command present.
…
None
No meaning
Last
byte
2nd bit
string
If first and second bit strings
agree, there is valid data
present.
Command designator 81
hex
or 01
hex
: Read individual
data carrier (USER data)
Sub-
address
Meaning
Functional description
00
hex
1st bit
string
01
hex
Command
recognition
81
hex
: read data carrier (USER
data).
02
hex
Start
address 1
(Low Byte)
Start address (Low Byte) from
which reading is to start.
03
hex
Start
address
2 (Middle
Byte)
Start address (Middle Byte) from
which reading is to start.
04
hex
Start
address 3
(High Byte)
Start address (High Byte) from
which reading is to start.
05
hex
Number of
bytes 1
(Low Byte)
The number of bytes (Low Byte)
that are to be read starting from
the start address.
06
hex
Number of
bytes 2
(Middle
Byte)
The number of bytes (Middle
Byte) that are to be read starting
from the start address.
07
hex
Number of
bytes 3
(High Byte)
The number of bytes (High Byte)
that are to be read starting from
the start address.
…
None
No meaning
Last
byte
2nd bit
string
If first and second bit strings
agree, there is valid data
present.
If execution is successful, the response is passed to the
input buffer in the following format:
Sub-
address
Meaning
Functional description
00
hex
1st bit
string
01
hex
Data
Transmission of data that was
read from the data carrier.
…
Data
Transmission of data that was
read from the data carrier.
… is continued, if necessary, in
further buffer transmissions until
the total number of bytes is
reached.
Last
byte
2nd bit
string
If first and second bit strings
agree, there is valid data
present.
8
Device function (continued)
BIS U-6026-034-1_4-06-ST35
Processor unit
Содержание BIS U-6026-034-104-06-ST35
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