Rs-232 Port - Teledyne 7320 Operating Instructions Manual

Infrared Gas Analyzer
The digital signal output is a standard RS-232 serial communications
port used to connect the analyzer to a computer, terminal, or other digital
device. It requires a standard 9-pin D connector.
Output: The data output is status information, in digital form, updated
every two seconds. Status is reported in the following order:
•
•
•
•
•
Each status output is followed by a carriage return and line feed.
Input: The input functions using RS-232 that have been implemented
to date are described in Table 2-3.
Command
as<enter>
az<enter>
rp<enter>
Figure 2-8: FET Series Resistance
2.3.4

RS-232 Port

The concentration in ppm or percent
The range in use (00 = Range 1, 01 = Range 2, 10 = Range 3, 11
= Range 4)
The span of the range (0-100 %, etc)
Which alarms—if any—are disabled (AL–x DISABLED)
Which alarms—if any—are tripped (AL–x ON).
Table 2-3: Commands via RS-232 Input
Description
Immediately starts an autospan.
Immediately starts an autozero.
Allows reprogramming of two System functions:
(gas use) and
Teledyne Analytical Instruments
Installation 2
(linearization).
2-11