Teledyne T100, Инструкция по эксплуатации, Страница: 154 / 404

Remote Operation & Advanced Features Teledyne ML - T100 UV Fluorescence SO2 Analyzer
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Figure 5-22: DAS Configuration Through a Terminal Emulation Program
Both procedures are best started by downloading the default DAS configuration, getting
familiar with its command structure and syntax conventions, and then altering a copy of
the original file offline before uploading the new configuration.
IMPORTANT
Whereas the editing, adding and deleting of DAS channels and parameters of one
channel through the front-panel control buttons can be done without affecting the other
channels, uploading a DAS configuration script to the analyzer through its
communication ports will erase all data, parameters and channels by replacing them
with the new DAS configuration. Backup of data and the original DAS configuration is
advised before attempting any DAS changes.
5.3. REMOTE OPERATION OF THE ANALYZER
This section provides information needed when using external digital and serial I/O and
when using Hessen protocol for remote operation. It also provides references to
communications-related manuals.
5.3.1. REMOTE OPERATION USING THE EXTERNAL DIGITAL I/O
5.3.1.1. STATUS OUTPUTS
The status outputs report analyzer conditions via optically isolated NPN transistors,
which sink up to 50 mA of DC current. These outputs can be used interface with
devices that accept logic-level digital inputs, such as programmable logic controllers
(PLC’s). Each Status bit is an open collector output that can withstand up to 40 VDC.
All of the emitters of these transistors are tied together and available at D.