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Micromod Micro-DCI: 53MC5000 Multi-Loop Process Controller Instruction Manual User Manual

Page 247

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Table 12-3. CS21 Two Loop Cascade Controller Datapoints

Data-

point

Table

Module

Title and Function

De-

fault

AO0 - Control Output (Secondary) (Cont)

L144

5-9

CON1

Manual Fallback Disable - 0 = always power up in manual for
Secondary Control Output; 1 = auto/manual selector
unchanged at power up.

0

L146

5-9

CON1

Hard Manual Limit - 1 = apply output limits to the final output
of the Loop 1 Auto-Manual Generator. Affects both the
manual push buttons and the controller’s result. 0 = do not
apply limits.

1

C145

5-9

CON1

Output High Limit - Sets maximum Secondary Control Output
signal value in engineering units.

100

C146

5-9

CON1

Output Low Limit - Sets minimum Secondary Control Output
signal value in engineering units.

0

C154

5-9

CON1

Output Slew Rate - It is a rate limit applied to the output
value. When configured to a non-zero value, the output from
the Auto-Selector is only allowed to change by this amount
each scan time. A zero disables output slewing. It does not
affect manual operation.

0

CON1 Control Related Datapoints (Secondary)

C142

5-9

CON1

Proportional Band - Is the percent of error required to move
the Secondary Control Output full scale for proportional
action.

100

C143

5-9

CON1

Reset Time - Is the number of minutes per repeat of integral
action for the Secondary Control Output. It is mutually
exclusive with Manual Reset.

0

C144

5-9

CON1

Rate Time - Represents the minutes Secondary Control
Output proportional action is advanced.

0

C147

5-9

CON1

Manual Reset - It determines Secondary Control Output
valve position when the controller is in Auto and the error =
0. It is mutually exclusive with Reset Time.

50

L130

5-9

CON1

Reverse Switch - 0 = Secondary Control Output

if

Secondary PV

; 1 = Secondary Control Output

if

Secondary PV

.

1

L138

5-9

CON1

Auto Enable - Controller output is from the Secondary
Control Output PID algorithm when set to 1 and the A/M
push button is in Auto.

1

C151

5-9

CON1

Controller Span - Enter a value, that when added to the
Secondary Control Lower Range value, will produce the
Secondary Control upper range value in engineering units.

100

C152

5-9

CON1

Controller Lower Range - Enter a value that represents in
engineering units the Secondary Control lower range value.

0

3 of 6

53MC5000 Process Control Station

12-8