4. REMOTE OPERATION
Page 147
© 1998-2008 DH Instruments, a Fluke Company
HLDFALL
Purpose
Get the results of the last natural fall rate measurement step while executing the line
pressure sequence in high line differential mode.
Syntax “HLDFALL”
Remarks
This command should only be used after the natural fall rate measurement function of
setting a line pressure has completed (see Section 4.5). The reply contains:
Reference piston average fall rate (mm/min)
Tare piston average fall rate (mm/min)
Natural fall rate difference (Ref-Tare) or “ERR”
If the reference or tare piston position was outside of
±
2.9 mm during this step, an ERR
message will be contained in the third data field of the reply.
Example Typical
command:
Typical reply:
“HLDFALL”
“-1.1, -1.3, 0.2” (step completed without error)
Error
ERR #40
Did not just complete crossfloat step of LineP sequence
ERR
#41
Piston position exceeded
±
2.9 mm
See Also
3.9.4.2, 3.11.5, 4.5, MODE, ABORT, HLDVIEW, HLDPPOS, HLDFALL, HLDXFLT
HLDLINEP
Purpose
Execute the functions needed to set a new line pressure in high line differential mode.
Syntax “HLDLINEP”
“HLDLINEP=
LineP
”
“HLDLINEP=NEXT”
“HLDLINEP=REPEAT”
Remarks
This command controls the new line pressure set sequence. It starts the sequence,
increments through the sequence steps and completes the sequence (see Section 4.5).
Use the “ABORT” command to abort the sequence at any time.
Argument
LineP:
The new line pressure to set. This is the initial step to setting a
new line pressure for high line differential mode. PG7102 will
check the request to ensure that the mass set and piston
combination can cover the pressure requested. PG7102 will
also configure itself and the tare PG7000 to set a new line
pressure. A tare PG7000 must be connected to the reference
PG7102’s COM2 port and communications setting of the tare
PG7000’s COM1 port must match the reference PG7102’s
COM2 port. After this command is successfully executed, you
can use the “MR” command to get the mass value needed to
set the line pressure.
NEXT:
Executes the next step when setting the line pressure. Refer to
Section 4.5 for examples of the use of this argument. This
argument is only valid if a new line pressure has previously
been requested by using the “
LineP
” argument, but the line
pressure sequence has not been completed yet.
REPEAT:
Repeats the previous step when setting a new line pressure.
This argument is only valid at specific points in the line pressure
set sequence. Refer to Section 4.5 for examples of the use of
this argument.
Example Typical
command:
“”HLDLINEP=2000” (Start new line pressure set sequence)
Typical
reply:
“2000.00 kPa”
Typical
command:
“”HLDLINEP=NEXT” (Start the next step)
Typical
reply:
BUSY1” or “BUSY2” (The next step has started)
Typical
command:
“”HLDLINEP=REPEAT” (Repeat the last step)
Typical
reply:
“OK”
Typical
command:
“”HLDLINEP”
Typical
reply:
“BUSY1” (Natural fall rate function is running)
Typical
reply:
“BUSY2” (Crossfloat function is running)
Typical
reply:
“OK” (Function is complete)
Error ERR
#1
ERR #1
ERR #13
ERR #28
ERR #37
ERR #38
ERR #39
ERR #40
Line pressure is invalid for active piston and mass set
Text argument not as expected
Tare PG7000 has not been detected
Tare PG7000 communications timeout
Tare PG7000 incorrect type or software version
Tare and reference pistons do not match
Tare PG7000’s reply not as expected
“NEXT” argument given but current step not complete or failed
See Also
3.9.4.2, 4.5, MODE, ABORT, MR, HLDVIEW, HLDPPOS, HLDFALL, HLDXFLT
