IDENT-I • IRI-KHD2-4.RX, IRI-KHA6-4.RX
Commands
Zumutbare Änderungen aufgrund technischer Verbesserungen vorbehalten.
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Further system commands to operate the interface unit
There are further system commands which issue control instructions such as, for
example, restart, changeover to binary mode or software number specification. The
system commands are accomplished in normal as well as in binary mode. These
commands do not specify any further parameters such as the read head number.
6.1
Read head number RHn
In the command mode, the read heads are specified as 1, 2, 3 or 4. If, instead of a
read head number, an X is sent, the read heads are interrogated one in sequence
(R mode). In the AR mode reading continues until a code carrier is read. With the CAR
mode, all the read heads continue to read until a new command is entered.
At switch on, read head 1 is selected. If a read head number is not specified, the pre-
viously selected head remains effective. All read heads can be switched off by select-
ing read head 0. This is a good police for minimizing energy usage.
RST
Restart
All previously programmed commands are interrupted by this
command and the control interface is set to the default condi-
tion, i.e. no active read command and data format 10. The
RST command determines the parity setting of the serial
communication at switch on of the control interface. Since by
this command the control interface recognizes the parame-
ters for serial transmission, the command must consist of
either all upper case or all lower case letters.
SB
Set binary mode
All read data is transmitted at 8 data bits per byte. This for-
mat functions only when the serial interface is also set to
transmit 8 data bits per byte and is recommended when rapid
data transmission is called for. The SB command is only per-
missible when one of the data formats 28, 64 or 256 has
been set beforehand by a read command. To quite the
mode, an RST command is sent.
VER
Version number
The software version and the copyright message are dis-
played by use of this command.
