Gemini 4100 Instruction Manual page 18

CODE 66 - "OPERATOR ACCESSIBLE FUNCTIONS" MODES
The Gemini has six basic levels of "Operator Accessible Functions". Each of
these levels can be modified to enable or disable manual reset. When the "PGM.
DIS." (Program Disable) terminal is connected to "COMMON", access to all
functions is disabled except for those listed below which will remain enabled. All
of the function codes and parameters can be interrogated, regardless of the
"Operator Accessible Functions" mode selected.
A "-" sign in front of the mode identifier will disable the front panel Reset
button and the "RST." terminal.
Note: The front panel reset button can be independently disabled by using the
disable reset DIP switch.
[66 1] NO FUNCTIONS ENABLED EXCEPT RESET - In this mode, manual
reset is enabled, but none of the programming functions can be changed.
[66 2] PRESET PROGRAMMING AND RESET ENABLED - In this mode,
manual reset and the programming of the Preset Values are enabled.
[66 3] SCALE FACTOR PROGRAMMING AND RESET ENABLED - In this
mode, manual reset and the programming of the Scale Factor Values are enabled.
[66 4] SCALE FACTOR, PRESET PROGRAMMING AND RESET
ENABLED - In this mode, manual reset and the programming of the Scale
Factor and Preset Values are enabled.
[66 5] PRESET, COUNTER LOAD PROGRAMMING AND RESET
ENABLED - In this mode, manual reset and the programming of the Presets
and Counter Load Value are enabled.
[66 6] PRESET, SCALE FACTOR, COUNTER LOAD PROGRAMMING
AND RESET ENABLED - In this mode, manual reset and the programming of
the Presets, Scale Factors and Counter Load Value are enabled.
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[66 -1]
[66 -2]
[66 -3] These modes are the same as above with the
[66 -4] exception that manual reset is disabled.
[66 -5]
[66 -6]
PRESET VALUE
Whenever the display value equals the preset value (when output is assigned
to that display channel), an output action will occur. This action depends on the
previously programmed modes. The preset values may range from -999,999 to
999,999. (Refer to "Programming the Presets, Scale Factors, Timed Outputs &
Counter Load Values" section for instructions on entering the preset values.)
The Counter (B) Scale Factor, SFB, will have a direct effect on the preset value
being entered (if assigned to the counter). For a Scale Factor Value greater than
one, the preset value should be an integer multiple of the Scale Factor. If it is not,
the Gemini will automatically adjust the preset value up or down to force it to be
evenly divisible by the Scale Factor.
"1" - PRESET 1 VALUE
"2" - PRESET 2 VALUE (GEMINI 4200 Only)
SCALE FACTORS A & B
"3" SCALE FACTOR - The Scale Factor, for which value (count or rate) is
currently being displayed, is accessed by pressing the "3" key. To access the
Scale Factor of the "other" display value, the "+/-" key would be pushed (to
change the display to the other value), then the "3" key would be pushed.
The number of pulses counted (internal count value) is multiplied by the Scale
Factor, which changes the displayed value accordingly. A Scale Factor Value of
1.0000 would result in a display of the actual number of input pulses that have
been counted. The Scale Factor is used primarily for conversion from existing
pulses per unit of measure to the required displayed units. This includes
conversion from different units of measure (i.e feet to meters, etc.).
The Scale Factor Values may range from -5.9999 to +5.9999 (positive only for
Rate (A) Scale Factor, SFA). Refer to "Programming the Presets, Scale Factors,
Timed Outputs & Counter Load Values" section for entering instructions. It is
important to note that the precision of a counter application cannot be improved
by using a Scale Factor greater than one. To accomplish greater precision, more