Micromod Micro-DCI: 53SL5100A Single Loop Controller User Manual

Page 58

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Single Loop Process Controller Instruction Manual

50 Configuration Parameters

Reverse Valve

RSV

u

L109

0

This parameter provides information for the
control display to indicate which direction the
control output must go to close the final
control element. A 1 indicates that 20 mA
closes the valve. A 0 indicates that 20 mA
opens the valve.

Manual
Fallback
Disable

MFD

L120

0

Under normal operation, whenever the
controller is powered up, the Auto/Manual
Selector is forced to the Manual position.
When this datapoint is set to a 1, the selector
will not be forced to the Manual position at
power up but will remain in the last position
before power was removed.

Alarm Limit 1

PL1

C103

100

These parameters are the points in
engineering units at which the alarms are
triggered.

Alarm Limit 2

PL2

C104

0

Alarm Dead
Band

ADB

C105

2

This parameter sets the activation/
deactivation gap for the alarm. This value in
engineering units defines an area of
hysteresis at the alarm point.

Proportional
Band

PB

C106

100

This parameter is the percent of error
required to move the output full scale for
proportional action. It modifies the controller
response in standard PID terms.

Reset Time

TR

C107

0

This parameter represents the number of
minutes per repeat of integral action. It
modifies the controller response in standard
PID terms.

Rate Time

TD

C108

0

This parameter value represents the minutes
that proportional action is advanced
(derivative action).

Manual Reset

MR

u

C111

50

This parameter determines the position of the
valve (output) when the instrument is in
Automatic mode and the error is zero. (It is
only in effect when TR = 0.)

Table 4-8. Controller Module (CON-0) (Continued)

Title

Symbol

CS

■ ● ▲ ◆
1 | 2 | 3 | 4

CON-0

Datapoint

Default

Attribute

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