C-Link Protocol Commands
Alarms
Thermo Electron Corporation Model 42i Low Source Instruction Manual B-15
Send: pressure alarm min
Receive: pressure alarm min 150 mmHg
set alarm pressure min value
set alarm pressure max value
These commands set the pressure alarm minimum and maximum values to
value, where value is a floating-point number representing pressure alarm
limits in millimeters of mercury. The example below sets the pressure alarm
maximum value to 290 mmHg.
Send: set alarm pressure max 290
Receive: set alarm pressure max 290 ok
alarm trig conc no
alarm trig conc no2
alarm trig conc nox
These commands report the NO, NO
2
, and NO
x
concentrations alarm
trigger action for minimum alarm, current setting, to either floor or ceiling.
The example below shows the NO concentration minimum alarm trigger to
ceiling, according to Table B-3.
Send: alarm trig conc no
Receive: alarm trig conc no 1
set alarm trig conc no value
set alarm trig conc no2 value
set alarm trig conc nox value
These commands set the NO, NO
2
, and NO
x
concentrations alarm
minimum value, where value is set to either floor or ceiling, according to
Table B-3. The example below sets the NO concentration minimum alarm
trigger to ceiling.
Send: set alarm trig conc no 1
Receive: set alarm trig conc no 1 ok
Table B-3. Alarm Trigger Values
Valu e Alarm Trigger
0 Floor
1 Ceiling
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