Teledyne Analytical Instruments 3020 M, Руководство по эксплуатации

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Installation Model 3020M-ATEX
Teledyne Analytical Instruments 32
Table 3-3: RS-232 Signals
RS-232 Sig RS-232 Pin Purpose
DCD 1 Data Carrier Detect
RD 2 Received Data
TD 3 Transmitted Data
DTR 4 Data Terminal Ready
COM 5 Common
DSR 6 Data Set Ready
RTS 7 Request to Send
CTS 8 Clear to Send
RI 9 Ring Indicator
The data sent is status information, in digital form, updated every
two seconds. Status is reported in the following order:

The concentration in percent

The range in use (HI, MED, LO)

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).
Each status output is followed by a carriage return and line feed.
Four input functions using RS-232 have been implemented to date.
They are described in Table 3-4.
Table 3-4: Commands via RS-232 Input
Command Description
as <enter> Immediately starts an autospan.
az <enter> Immediately starts an autozero.
co <enter> Reports “Raw Cell Output” (current output of the
sensor itself) in

A. For example—
Raw Cell Output: 99

A
st <enter> Toggling input. Stops/Starts any status message output
from the RS-232, until
st <enter> is sent again.