DH Instruments PPC3 - Page 108

PPC3™ OPERATION AND MAINTENANCE MANUAL
© 2002-2007 DH Instruments, a Fluke Company Page 98
MODE
Purpose Read or set the automated pressure control mode.
Command
Query
“MODE n”
“MODE?”
Classic “MODE=n”
“MODE”
Arguments n: ’0’ for static pressure control.
’1’ for dynamic pressure control.
Remarks The method which the PPC3 controls pressure is selected with the “MODE” program message.
When the control mode is set, control parameters go to default parameters for that range.
The control mode setting is range dependent.
Example
(enhanced)
Cmd sent:
Query reply:
“MODE 1”
“1” (No reply if GPIB-488)
Example
(enhanced)
Cmd sent:
Query reply:
“MODE? 1”
“1”
Example
(classic)
Sent:
Reply:
“MODE=1”
“MODE=1”
Errors ERR# 6 The argument is invalid.
See Also “HS”, “SS”
3.4.6, 3.2.1
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
"N" Negative gauge mode
Measured pressure values are returned with “g” to identify measurement
mode for both gauge and negative gauge measurement modes.
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 but the “UNIT” command does not distinguish between gauge and
negative gauge while the “MMODE” does.
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# 20:
ERR# 53:
Invalid argument text.
Abs mode only with altitude units or gauge mode only with gauge RPT.
Absolute or negative gauge mode not available with gauge RPT or absolute
RPT with an absolute and negative gauge OFF calibration.
The current range cannot support gauge mode.
Not available.
See Also “UNIT”
3.3.3