Port; Table 3-5: Commands Via Rs-232 Input; Table 3-6: Required Rs-232 Options - Teledyne 3000TA-XL-EU Operating Instructions Manual

Installation
3.3.2.3 RS-232 P
ORT
The digital signal output is a standard, full duplex 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.
The output data is status information, in digital form, updated every
two seconds. Status is reported in the following order:

The concentration in ppm or percent

The range in use (HI, MED, LO)

The span of the range (0-100 ppm, etc)

Which alarms—if any—are disabled (AL–x DISABLED)

Which alarms—if any—are tripped (AL–x ON).
Each status output is followed by a carriage return and line feed.
Three input functions using RS-232 have been implemented to
date. They are described in Table 3-5.

Table 3-5: Commands via RS-232 Input

Command
as<enter>
az<enter>
st<enter>
The RS-232 protocol allows some flexibility in its implementation.
Table 3-6 lists certain RS-232 values that are required by the 3000TA-
XL-EU implementation.

Table 3-6: Required RS-232 Options

Teledyne Analytical Instruments
Description
Immediately starts an autospan.
Immediately starts an autozero.
Toggling input. Stops/Starts any
status message output from the
RS-232, until st<enter> is sent
again.
Parameter Setting
Baud 2400
3000TA-XL-EU
30