DH Instruments PPCH-G, Руководство по эксплуатации и обслуживанию

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4. REMOTE OPERATION
Page 109 © 2007 DH Instruments, a Fluke Company
RES
Purpose To read or set the pressure display resolution for the active range.
Command
Query “RES n ”
“RES?”
Classic “RES= n ”
“RES”
Default “RES 0.001”
Arguments n: The pressure display resolution in % span of the current RPT range (0.0001 to 1 %
FS).
Remarks The pressure display resolution is defined as % span of the active range. The setting is
separate for each range, and changes as the range is changed.
Example
(enhanced) Cmd sent:
Reply: “RES .01”
“0.01” (No reply if GPIB-488)
Example
(enhanced) Cmd sent:
Reply: “RES? .01”
“0.01”
Example
(classic) Sent:
Reply: “RES=.01”
“0.01”
Errors ERR# 6 The argument is invalid.
See Also 3.4.2
RESET
Purpose Reset the user’s settings to factory defaults.
Command “RESET”
Classic “RESET”
Remarks
The PPCH-G has user settings (units, resolution, control modes, etc.) that can be reset to
factory defaults. System calibration coefficients and communications settings are not affected.
The remote “RESET” program message corresponds to the front panel “Reset - Sets.” The reset
cycle takes up to 3 seconds to complete. Remote communications should not take place
during this period.
Example
(enhanced) Cmd sent:
Reply: “RESET”
“RESET”
(no reply if IEEE-488)
Example
(enhanced) Cmd sent:
Reply: “RESET?”
“RESET”
Example
(classic) Sent:
Reply: “RESET”
“RESET”
See Also 3.5.4.1
RETURN
Purpose Start a new pressure setting sequence equivalent to the “PS” command using the last target
pressure.
Command “RETURN”
Classic “RETURN”
Remarks
The “RETURN” program message starts a new pressure setting sequence using the current
settings and target pressure. Pressure control continues until a new target pressure is set,
the PPCH-G is put into LOCAL mode, or an “ABORT” program message is executed.
Example
(enhanced) Cmd sent:
Reply: “RETURN”
“1000.000 kPaa” (no reply if IEEE-488)
Example
(classic) Sent:
Reply: “RETURN”
“1000.000 kPaa”
Errors ERR# 6
ERR# 8
ERR# 12
ERR #18
The target pressure is out of range.
Active external RPM4 timeout.
Pressure has exceeded maximum limits.
This command not valid in “rate” control mode.
See Also “PS“, “TP”
3.3.10