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C-Link Protocol Commands
Measurements
B-10
Model 48i Trace Level-Enhanced Instruction Manual
motor
This command reports the current motor speed. The example below
reports that the current motor speed is 100%.
Send:
motor
Receive:
motor 100%
pres
This command reports the current reaction chamber pressure. The first
pressure reading is the pressure reading being used in instrument
calculations. The second pressure is the actual pressure reading being
measured. If pressure compensation is on, then both pressure readings are
the same. If pressure compensation is off, a pressure of 760 mmHg is used
as default pressure even though the actual pressure is 753.4 mmHg. The
example below shows that the actual reaction chamber pressure is 753.4
mmHg.
Send:
pres
Receive:
pres 753.4 mmHg
ratio
high ratio
low ratio
The "ratio" command reports the sample/reference ratio in single mode.
The "high ratio" commands reports the sample/reference ratio using high
averaging time and the "low ratio" command using low averaging time,
when operating in dual or auto mode. The example below shows that the
current ratio is 1.16110.
Send:
ratio
Receive:
ratio 1.161100
flags
This reports 8 hexadecimal digits (or flags) that represent the status of the
AGC circuit, pressure and temperature compensation status, gas units, gas
mode, and alarms. To decode the flags, each hexadecimal digit is converted
to binary as shown in the
status of each parameter. In the example below, the instrument is reporting
that the AGC circuit is on, that the instrument is in the span gas mode,
and that the CO high concentration alarm is activated.
Send:
flags
Receive:
flags 80028000
Figure
B–1. It is the binary digits that define the
Thermo Fisher Scientific
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Troubleshooting
