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Loop Alarm Time
When On-Off control is selected and loop alarm is enabled, this parameter determines the
duration of the limit condition after which the loop alarm will be activated. It may be adjusted
within the range of 1 second to 99 minutes 59 seconds. This parameter is omitted from the
Set-up mode display sequence if On-Off control is not selected or loop alarm is disabled.
Display code = +5#< , Default setting is 99:59.
Also refer to Loop Alarm Enable.
mADC
This stands for milliamp DC. It is used in reference to the DC milliamp input ranges and the
linear DC milliamp outputs. Typically, these will be 0 to 20mA or 4 to 20mA.
Manual Mode Enable
Determines whether operator selection/deselection of manual control is enabled. If the mode
is enabled in Set-Up mode, pressing the AM key in operator mode will cause a controller to
enter or leave manual control mode. In manual mode, the upper display shows the current
process value, the lower display shows the output power in the form - - xxx (where xxx is
equal to the percentage output power). The power value may be adjusted using the UP or
DOWN keys. The value can be varied between 0% to 100% for instruments using primary
control only, and -100% to +100% for controllers using primary and secondary (e.g. heat &
cool). This mode should be used with care because the power output level is set by the
operator, therefore the PID algorithm is no longer in control of the process. The operator
MUST maintain the process as the desired level manually. Manual power is not limited by the
Primary Power Output Limit.
Display code = -".% , default setting = D<:5Q
Also refer to Bumpless Transfer, PID, and Primary Output Power Limit
Master & Slave
The terms master & slave are used to describe the controllers in applications where one
instrument controls the setpoint of another. The master controller can transmit the setpoint to
the slave using an analogue DC linear signal. The slave controller must have a matching a
remote setpoint input. Some Profile Controllers can transmit their setpoint via serial
communications serial communications. For this method, the Profiler must be able to act as a
communications master device and the slave must have a compatible communications
option fitted. '
Also refer to Cascade Control, Retransmit Output, Remote Setpoint, Serial Communications,
Setpoint
Multi-Point Scaling Enable
When an Indicators Multi-Point Scaling function is enabled by setting Mm-: to .%56 in
Configuration Mode, up to 9 breakpoints can be defined to linearize the input signal. This
only applies to mA, mV or Voltage input types. For each breakpoint, an input scale value is
entered, followed by the value to be shown at the breakpoint.
Display code = Mm-:, default setting = D<:5Q'
Also refer to Indicator, Multipoint Scaling Set Up and Process Variable.
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Glossary
- DIN Controllers & Indicators - Product Manual
59305, Issue 5 – March 2005
Type: Controller Parameter
Type: General Definition
Type: Controller Parameter
Type: Controller Definition
Type: Indicator Parameter
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