Honeywell dcp100t Operator's Manual page 31

Digital controller programmer
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Message
Parameter
Display
Deviation
(High/Low)
Alarm 2 Value
Alarm 2
Hysteresis
Value
Loop Alarm
Enable
Loop Alarm
Time
Scale Range
Decimal
9
Point
Scale Range
9
Maximum
Scale Range
Minimum
9
Auto Pre-Tune
Enable/Disable
Manual
Control
Enable/Disable
Comm-
unications
Write
Enable/Disable
10
Function
If Alarm 2 is a Deviation
High/Low alarm, gives a
value above (positive
value) or below (negative
value) the setpoint. If the
process variable deviates
from the setpoint by a
margin greater than this
value, the alarm
becomes active (see
Figure 9-2).
Defines a hysteresis band
on the "safe" side of the
Alarm 2 value (see Figure
9-3).
Enables/disables Loop
Alarm (see Subsection
9.3)
If ON/OFF control is
selected (i.e. PB1 = 0)
and Loop Alarm is
enabled, this defines the
duration of the saturation
condition after which the
Loop Alarm is activated
(see Subsection 9.3).
For linear inputs, defines
the decimal point
position.
For linear inputs, defines
the scaled input value
when the process
variable input is at its
maximum value.
For linear inputs, defines
the scaled input value
when the process
variable input is at its
minimum value.
Determines whether the
Pre-Tune facility is
automatically activated
on power-up.
Enables/disables
operator selection of
Manual Control mode.
Enables/disables
adjustment of parameter
settings/value via the
RS485 communications
link.
Available Settings/Values
(Lower Main Display)
±(input range) from setpoint.
Default = 5 input range units.
1 LSD to 10% of input span (0 is an
invalid value).
0 = Disabled, 1 = Enabled.
Default = 0 (Disabled)
1 second to 99 minutes 59
seconds.
Default = 99 minutes 59 seconds.
0 = XXXX
1 = XXX.X (Default)
2 = XX.XX
3 = X.XXX
−1999 to 9999 (decimal point
position as defined by Scale
Range Decimal Point parameter
(see above).
Default = 100.0
−1999 to 9999 (decimal point
position as defined by Scale
Range Decimal Point parameter
(see above).
Default = 0.0
OFF = Disabled, ON = Enabled.
Default = OFF.
OFF = Disabled, ON = Enabled.
Default = OFF.
OFF = Disabled, ON = Enabled.
Default = OFF.
9-5

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