Entering Commands - Ametek Crystal Pressure APM CPF Series Operation Manual

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ENTERING COMMANDS

Commands for the APM may be entered in upper or lower case. At least one space must be entered between the command and parameter. All other spaces
are optional. Almost all commands for the APM are sequential, and any overlapped commands will be indicated as such. This section will briefly explain each
of the commands and describe their general use. The descriptions will include any parameters that may be entered with the command, as well as the output
of the command.
Common Commands
*CLS
X
Clears the error queue. Also terminates all pending operations. When writing programs, use before each procedure to avoid buffer overflow.
*IDN?
X
Returns the manufacturer, model number, and firmware revision of the APM. For example,
Module Commands
DAMP
X
Enables a damping filter on the readings returned by the
For example, DAMP ON , will turn the damping function on.
DAMP?
X
Returns the current state of the damping function. For example,
FAULT?
X
Returns the error code number of an error that has occurred. The command may be entered when a previous command did not do what it was intended to
do. Refer to the Error Codes table for more information on error code numbers.
PRES_UNIT
X
Used to set the pressure unit for the indicated display. For example,
parameters. Refer to the Parameter Units table
PRES_UNIT?
X
Returns the current pressure unit being used.
VAL?
X
Returns the value of the current measurement on the upper and lower display. For example, if the APM is measuring 5 psi, then
ZERO_MEAS
X
Zeros the APM. Send CAL_STORE to save the new parameters.
ZERO_MEAS?
X
Returns the zero offset of the APM.
*IDN?
VAL? command. The filter is a first-order smoothing filter with 90% damping percentage.
DAMP? will return ON if the damping function is on.
PRES_UNIT PSI will set the pressure unit to psi. Send
for a complete list of available pressure units.
will return AMETEK, APM 0, 1.00 .
CAL_STORE to save the new
VAL? will return 5.000000E+00, PSI .
APM CPF Series Operation Manual
10
Communications
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