Teledyne 6000A Operating Instructions Manual page 23

Photometric Analyzer
The data sent 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.
Three input functions using RS-232 have been implemented to date.
They are described in Table 2-4.
Command
as<enter>
az<enter>
st<enter>
The RS-232 protocol allows some flexibility in its implementation.
Table 2-5 lists certain RS-232 values that are required by the 6000A.
RD
TD
DTR
COM
DSR
RTS
CTS
RI
• The concentration in percent
• The range is use (HI< MED< LO)
• The span of the range 0-100%, etc)
• Which alarm - if any - are disabled (AL-x DISABLED)
• Which alarms - if any - are tripped (AL-x ON)
Table 2-4: Commands via RS-232 Input
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.
Teledyne Analytical Instruments
Part I: Control Unit
2 Received Data
3 Transmitted Data
4 Data Terminal Ready
5 Common
6 Data Set Ready
7 Request to Send
8 Clear to Send
9 Ring Indicator
Part I: 2-9