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4. REMOTE OPERATION
Page 85 © 2004-2007 DH Instruments, a Fluke Company
4.4 COMMANDS
4.4.1 PROGRAMMING MESSAGES
Some commands accept an optional suffix. This suffix can be used to specify the explicit Q-RPT
to address. In most cases, each Q-RPT in the RPM4 operates as an independent
measurement device. If the suffix is not specified, then the “Active” Q-RPT is assumed.
The “RANGE” or “ARANGE” command can be used to select the “Active” Q-RPT. There are
some limitations to use of the suffix when the RPM4 is in differential mode (see Section
3.3.3.1) or the “HL” Q-RPT is active (see Section 3.2.4). See the program message
descriptions for suffix use with a specific command.
Table 16. Program Message List
COMMAND
‘n’ indicates an
optional suffix
DESCRIPTION
#
Send a command string out of the RPM4 COM2 port.
ABORT
Stop pending operations
ARANGEn
Read or set a new AutoRange to use.
ATM
Read the current atmospheric pressure (on-board barometer).
AUTOZEROn
Read or set the status of the AutoZ automatic zeroing function.
AUTOZEROn=RUN
Run AutoZero.
CALAMB
Read or set the on-board barometer calibration
COM1
Read or set the configuration of the COM1 port.
COM2
Read or set the configuration of the COM2 port.
CONTn
Enable continuous measurements
DATE
Read or set the current date.
ERR
Read the last error message.
GPIB
Read or set the GPIB interface address.
HEAD
Read or set the fluid head settings.
ID
Read or set the RPM4 alphanumeric asset ID tag.
L2
Selects “classic” program message format
L3
Selects “enhanced” program message format
LLn
Read or set the lower limit for the current range (negative gauge and differential
modes only).
LOCAL
Return control to the RPM4 front panel.
MEM
Read the power-up memory test status.
MMODEn
Read or change the active measurement mode.
MSGFMT
Read or set the type of program message format to use.
NVENTn
Read or set the status of low vent valve (Gxxx or BGxxx Q-RPT only)
PCALn
Read or set the user Lo Q-RPT calibration information.
PCAL:XX
Read or set the user Lo Q-RPT calibration information (old command).
PRn
Read the next RPM4 pressure.
PRRn
Read the next RPM4 pressure, rate, and ATM.
QPRRn
Read the last RPM4 pressure, rate and ATM.
RANGE
Select a Q-RPT to be “active” in it’s default full scale range
RATEn
Read the next available rate of change of pressure.
READRATEn
Read or set the Q-RPT measurement read rate and mode
READYCKn
Read or set a flag that is cleared by a Not Ready condition.
REMOTE
Enable remote local lockout operation.
RESn
Read or set the pressure display resolution for the current Q-RPT and range.
RESET
Reset the RPM4 to default user parameters.
RPTn
Read the available Q-RPT data.
SCRSAV
Read or set the front panel screen saver period.
SDSn
Read or set the SDS state for a specific Q-RPT
SDSACT
Read or set the active Q-RPT SDS state
SDSAUTOn
Read or set the SDS mode for a specific Q-RPT
SN
Read the serial number of the RPM4.
SRn
Read the next available pressure status (Ready/Not Ready).
SSn
Read or set the stability required for a Ready condition.
SS%n
Read or set the stability required for a Ready condition (% span/ s).
TIME
Read or set the current time of day.
UCOEFn
Convert a pressure in Pascal to pressure in the current units.
UDU
Read or set the user defined pressure unit.