Altana Haze-Gard Plus Operating Instructions Bedienungsanleitung Seite 36

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11. Interface Description
The instrument is equipped with a
serial interface (RS-232) by way of
which the instrument can be
controlled and measurement data
can be processed further by a PC,
or data can be output on an
appropriate printer. The unit has a
9-pin Sub-D connector for data
transfer.
haze-gard plus PC
3 TxD RxD 3
2 RxD TxD 2
7 RTS CTS 5
8 CTS RTS 4
5 GND GND 7
Transfer Rate and Format
Serial asynchronous transfer is preset
on the instrument, and is performed
with the following format:
9600 baud, 8 data bits, no parity,
1 stop bit.
Control Commands
4Fh (ASCII code for ‘0’) Starts
online operation.
The instrument transmits a 4Fh and
sends back a 21h as the
acknowledgement signal.
s 4HEINSTRUMENTCONTROLSARE
disabled, except for the <operate>
and <reference> buttons and the
foot switch.
Then the instrument status
(10 bytes) is transmitted to the
computer.
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