PROGRAMMING
OPERATING MODES
The Compu-M has two selectable modes of operation: "Access" or "Run". In either mode, parameter values
may be viewed, accepted or altered, zero and span calibrations may be initiated and the totalizer may be
reset. However the level of access to these functions is determined by the security parameter P66. Attempting
to perform a function outside of the access security level will result in a display message
[ E1 ].
The access mode is automatically assumed upon initial power up and upon completion of zero and span
calibrations or Factoring (P9).
The run mode is the normal operating mode and may be selected by pressing
"RUN" or "ALT DISP". In the run
mode, the desired display mode is selected by pressing
"ALT DISP" until the corresponding display mode
indicator LED on the Compu-M front cover is illuminated.
All operator programmed information is maintained in non-volatile EEPROM memory and therefore is retained
in the event of a power interruption. The Compu-M will return to the previous operating mode when power
resumes.
The level of access security chosen may limit operator access to some of the following keypad functions.
KEYPAD
Button Function
"0"..."9" numeric entries
"4" increase analog mA output (P13 and P14 only)
"8" decrease analog mA output (P13 and P14 only)
"." decimal point
"-" access mode: negative entry,
run mode: activate/deactivate LCD backlight
"RUN" enter the run mode, return to previously selected display mode
"PAR" access parameter for entry or viewing
"ZERO" activate zero calibration or view current zero count
"SPAN" activate span calibration or view current span count
"ALT access mode: enter the run mode, return to previously selected display mode
DISP" run mode: scrolls through display modes, cancels Auto Scroll display (P21)
"RESET reset local totalizer to zero (0)
TOTAL"
"CLEAR"
clear display
"ENTER" enter parameter number selected, display current parameter value,
enter display value into selected parameter number, accept
zero, or span calibration deviation
PL-516 23
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