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4. REMOTE OPERATION
Page 95 © 2004-2007 DH Instruments, a Fluke Company
MEM
Purpose Read the status from the power-up memory test.
Query “MEM?”
Classic “MEM”
Remarks The RPM4 system memory stores the user settings (units, resolution) and retains them when
the unit is OFF. On power-up, this memory is checked. If this memory is corrupted, all user
settings are reset to default , and the MEM status is set to reflect this.
Example
(enhanced)
Query sent:
Reply:
“MEM?”
“0” RPM4 data corrupted and was set to factory defaults.
“1” The memory was found to be OK on power-up.
Example
(classic)
Sent:
Reply:
“MEM”
“MEM=0” RPM4 data corrupted and was set to factory defaults.
“MEM=1” The memory was found to be OK on power-up.
See Also 3.5.9, 3.5.7.5
MMODEn
Purpose Read or change the active measurement mode.
Command
Query
“MMODEn mode”
“MMODEn?”
Classic “MMODEn=mode”
“MMODEn ”
Optional Suffix “n” The active Q-RPT is assumed if no suffix is given.
‘1’ Specify the Hi Q-RPT if the Hi and Lo Q-RPTs are NOT OFF and the HL
Q-RPT is not active.
Specify the HL Q-RPT if the Hi and Lo Q-RPTs are OFF
‘2’ Specify the Lo Q-RPT if the HL Q-RPT is not active and measurement
mode is not differential.
‘3’ Specify the HL Q-RPT if the HL Q-RPT is active.
Arguments Mode: "A" Absolute mode
"G" Gauge mode
"N" Negative gauge mode
“D” Differential mode (available only for the Hi Q-RPT)
Measured pressure values are returned with “g” to identify measurement
mode for both gauge and negative gauge measurement modes. Differential
mode restricts access to settings on the Lo Q-RPT.
Remarks The measurement mode can also be set using the “UNIT” command but the “UNIT” command
does not distinguish between gauge and negative gauge in it’s reply, while the “MMODE”
does. Measurement mode is range specific.
Example
(enhanced)
Cmd sent:
Query reply:
“MMODE A”
“A” (No reply if IEEE-488)
Example
(enhanced)
Cmd sent:
Query reply:
“MMODE? A”
“A”
Example
(enhanced)
Cmd sent:
Query reply:
“MMODE=G”
“G”
Errors ERR# 6:
ERR# 7:
ERR#10:
ERR# 20:
ERR# 53:
Invalid argument text.
Abs mode only with altitude units or gauge mode only with gauge Q-RPT.
The suffix indicating the Q-RPT is invalid for the current conditions.
Absolute or negative gauge mode not available with gauge Q-RPT.
Absolute Q-RPT with an absolute and negative gauge OFF calibration.
The current range cannot support gauge mode.
Gauge mode range would be negative.
Lo Q-RPT not suitable for differential mode.
See Also “UNIT”, “ARANGE”
3.3.3