PPCH™ OPERATION AND MAINTENANCE MANUAL
© 2009 DH Instruments, a Fluke Company
Page 112
MEM
Purpose
Read the status from the power-up memory test.
Query “MEM?”
Classic “MEM”
Remarks
The PPCH system memory stores the user settings (units, resolution, control settings) 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 will be set to reflect this.
Sending this query always set the MEM status to ‘1’ after replying it’s current status.
Example
(enhanced)
Query sent:
Reply:
“MEM?”
“0” PPCH 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” PPCH 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
MODE
Purpose
Read or set the automated pressure control mode.
Command
Query
“MODE
n
”
“MODE?”
Classic “MODE=
n
”
“MODE”
Arguments
n:
’0’ for “static” control.
’1,0’ or ‘1’ for “standard dynamic” control.
‘1,1’ for “hi volume dynamic” control
‘2’ for “monotonic” control.
‘3’ for “rate” control.
Remarks
The method which the PPCH controls pressure is selected with the “MODE” program message.
When the control mode is set, control parameters are set to default parameters for that range.
The control mode setting is range dependent.
Example
(enhanced)
Cmd sent:
Reply:
“MODE 1”
“1”
(No reply if GPIB-488)
Example
(enhanced)
Cmd sent:
Reply:
“MODE? 1”
“1”
Example
(classic)
Sent:
Reply:
“MODE=1”
“MODE=1”
Errors
ERR# 6
The argument is invalid.
See Also
“HS”, “SS”, “RL”
3.4.6, 3.2.2
MMODE
Purpose
Read or change the active measurement mode.
Command
Query
“MMODE=
mode
”
“MMODE”
Classic “MMODE=
mode
”
“MMODE ”
Arguments
Mode:
“A”
Absolute
mode
“G” Gauge mode
Remarks
The active RPT or an AutoRange range should selected before setting measurement mode
since measurement mode is range specific. The measurement mode can also be set using
the “UNIT” command.
Example
(enhanced)
Cmd sent:
Reply:
“MMODE A”
“A”
(No reply if IEEE-488)
Example
(enhanced)
Cmd sent:
Reply:
“MMODE? A”
“A”
Example
(enhanced)
Cmd sent:
Reply:
“MMODE=G”
“G”
Errors ERR#
6:
ERR# 20:
Invalid argument text.
Absolute mode not available on absolute RPT with absolute use disabled.
See Also
“UNIT”
3.3.3
