Omron SYSMAC C200H-IDS01-V1, Operation Manual

Page: 38 / 114

23
The User Program
Section 2-3
Auto Read Command Auto Read executes when the Data Carrier approaches the R/W Head. When
the Data Carrier comes within detection range of the R/W Head, Auto Read
reads data from the internal memory of the Data Carrier. Up to 1024 bytes
(512 words) of data can be read at a time. Specify the first address and the
number of bytes in hexadecimal.
Clear-all Command Clear-all clears the Data Carrier’s internal memory, regardless of write protec-
tion. The number of command data words are fixed to three. (Refer to
2-3-5
The Data Carrier’s Production Date .)
15
A
4 1
A/H
41/48
2
*
A
00
R
5 2
1
3 1
0 D
This is OP (operation) code indicating that
the command is Auto Read.
This is OP code represented in ASCII
code.
This code selects a R/W Head and is
always fixed to 1.
ASCII code
Specifies the first address of the Data
Carrier memory to which data is to be
read. Addresses $0000 through $FFFF
can be specified in hexadecimal.
Terminator
ASCII code
This field specifies
whether the data to
be read from the
Data Carrier is
ASCII characters or
hexadecimal code.
When ASCII charac-
ters are to be read,
this field contains
code A (41 in ASCII
code); when hexa-
decimal code is to
be read, it contains
code H (48 in ASCII
code).
Specifies the number of bytes, which can
range from $0001 through $0400, to be
read in hexadecimal code.
15
C
4 3
2
*
A
00
A
4 1
1
3 1 0
D
This is OP (operation) code indicating
that the command is Clear-all.
This is OP code represented in ASCII code.
This code selects a R/W Head and is
always fixed to 1.
ASCII code
Terminator
ASCII code
Blank (no
specifica-
tion)
0
0