mensor PCS 400, Руководство по эксплуатации

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_PCS4
•
FUNC
•
STBY<
•
unitno>
Set to STANDBY mode in current units unless
unitno specified.
_PCS4
•
FUNC
•
VENT<
•
unitno>
Set to VENT mode in current units unless unitno
specified.
_PCS4
•
OUTFORM
•
digit
Sets the output format (see table 4.1- PCS 400
Command Responses).
_PCS4
•
PEAKRESET
Resets and restarts peak pressure readings.
_PCS4
•
PEAKUNIT
•
digit
Enables the display of peak pressures. Digit must
be equal to 0 for normal pressure display, 1 for
maximum positive pressure display, or 2 for mini-
mum pressure display. Resets previous peak
measurements.
_PCS4
•
RATE
•
value
Sets the rate of pressure change to value (current
units/sec). Value must be within the range of
values shown in table 3.2 to enable rate control.
If value is 0 the Normal mode is selected.
_PCS4
•
RATEUNIT
•
digit
Enables pressure rate of change units to
units/min or units/sec. Digit must be equal to 0
for normal pressure display, 1 for rates displayed
in units/min, or 2 for rates displayed in units/sec.
_PCS4
•
STABLEDELAY
•
digits
Sets the number of consecutive readings (at ap-
proximately 30 milliseconds per reading) that the
pressure must remain within the stable window
for a pressure stable indication to be generated.
Acceptable range: 1to 999, or 1 to 255 for
PCS 400
with the HPCU option.
_PCS4
•
STABLEWINDOW
•
value
Sets the pressure window that is used to indicate
pressure is stable.
_PCS4
•
UNIT
•
unitno
Change units of measure to specified unitno (see
table 9.1).
_PCS4
•
XDUCER
•
digits
Sets the active transducer in a multi-transducer
instrument. All pressure output strings will in-
clude the measured output of this transducer.
Tests
If the
PCS 400
is read over a remote port while an
internal test is being performed, the instrument
will respond with a “B” in the first character of the
response string to indicate the instrument is busy.
When the test is completed, any information re-
ported back from the test will contain a “T” as the
first character of the response string.
_PCS4
•
TEST
•
EXHAUSTP?
Determines the approximate exhaust pressure at
the Exhaust port. (Used to determine the approxi-
mate minimum control pressure.)
Response: ‘T value cr lf ’
Where value equals the approximate exhaust
pressure and units identifies the units of measure.
_PCS4
•
TEST
•
EXTLEAK? value,digits
Performs a system leak test of the instrument and
all attached devices at the pressure specified by
value for the time in seconds set by digits. Value
must be within the range of the instrument and
the active sensor.
Response: ‘T value cr lf ’
Where value is the rate of change in the current
engineering units per second.
_PCS4
•
TEST
•
INTLEAK? value,digits
Performs an internal leak test of the instrument
by isolating the output and applying the pressure
specified by value for the time in seconds set by
digits.
Response: ‘T value cr lf ’
Where value is the rate of change in the current
engineering units per second.
_PCS4
•
TEST
•
MEMORY?
Determines the checksums of internal instrument
memory.
Response: ‘T 1 = cksum, 2 = cksum, 3 = cksum,
4 = cksum, 5 = cksum, 6 = cksum cr lf ’
Where cksum is a 4 digit hexadecimal number.
_PCS4
•
TEST
•
PROGRAM?
Determines the checksum of the instrument pro-
gram code.
Response: ‘T checksum cr lf ’
Where checksum is a 4 digit hexadecimal number.
_PCS4
•
TEST
•
REG?
Performs a functional test of the regulator valves.
Response: ‘T stat value, stat value, stat value, stat
value cr lf ’
Where a stat = PASS or FAIL and value is the
pressure change for that valve.
REMOTE OPERATION
PCS 400
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