Fluke RPM4-AD Operation And Maintenance Manual page 103

L2 / L3
Purpose Read or set the type of program command format to use (classic or enhanced).
Command "L2" enables "classic" mode
"L3" enables "enhanced" mode
Defaults "L2"
Remarks The user can select the type of remote command format using these simplified commands.
There is no query format. This format must agree with the format sent to the RPM4-AD. This
command is a replacement for the "MSGFMT" command.
Example Cmd sent:
(enhanced) Query reply:
Example Sent:
(classic) Reply:
See Also "MSGFMT"
4.3, 3.5.2.3
LLn
Purpose Read or set the lower pressure limit for the active range and measurement mode (negative
gauge or differential measurement mode only).
Command "LLn limit"
Classic "LLn =limit"
Optional Suffix "n"
Arguments "limit":
Remarks Negative gauge and differential modes in RPM4-AD each have a separate lower limit. If the
pressure is less than the lower limit, the pressure display flashes. This feature can used to
prevent accidental over (under) pressure of a device under test.
Example Cmd sent:
(enhanced) Reply:
Example Cmd sent:
(enhanced) Reply:
Example Sent:
(classic) Reply:
Errors ERR# 6:
ERR# 10
ERR# 23
See Also "UL", "MMODE"
3.4.4, 3.3.3
LOCAL
Purpose Returns control to the RPM4-AD front panel.
Command "LOCAL"
Classic "LOCAL"
Remark The REMOTE program message can lock the front panel out completely. The user can return
to local operation by sending the LOCAL program message, sending the IEEE-488 'GTL'
command (if in enhanced format), or by cycling RPM4-AD power.
Example Cmd sent:
(enhanced) Reply:
Example Cmd sent:
(enhanced) Reply:
Example Sent:
(classic) Reply:
See Also "REMOTE"
MEM
Purpose Read the status from the power-up memory test.
Query "MEM?"
Classic "MEM"
Remarks The RPM4-AD 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 Query sent:
(enhanced) Reply:
Example Sent:
(classic) Reply:
See Also 3.5.9, Error! Reference source not found.
(Classic mode)
"L3"
"L3" (No reply if IEEE-488)
"L2"
"L2"
The active Q-RPT is assumed if no suffix is given.
'1' Specify the Hi Q-RPT if the HL RPT is not active
Specify the HL Q-RPT if the HL Q-RPT is active
'2' Specify the Lo Q-RPT if the HL Q-RPT is not active and the
measurement mode is not differential
'3' Specify the HL Q-RPT if the HL Q-RPT is active
The lower pressure limit for the current pressure range in the specified Q-
RPT's current unit of measure unit and measurement mode. Value is always
a negative value of gauge pressure.
"LL -4"
"-4 kPa g" (no reply if IEEE-488)
"LL? -4"
"-4 kPa g"
"LL=-4"
"-4 kPa g"
The limit argument is invalid.
The suffix is invalid
The mode must be negative gauge to specify a lower limit.
"LOCAL"
"LOCAL" (no reply if IEEE-488)
"LOCAL?"
"LOCAL"
"LOCAL"
"LOCAL"
"MEM?"
"0" RPM4-AD data corrupted and was set to factory defaults.
"1" The memory was found to be OK on power-up.
"MEM"
"MEM=0" RPM4-AD data corrupted and was set to factory defaults.
"MEM=1" The memory was found to be OK on power-up.
Page 93 © 2005-2007 DH Instruments, a Fluke Company
4. REMOTE OPERATION