Practical Process Control for Engineers and Technicians

Appendix E: Configuring a Tuning Exercise in a Controller

E.1 Exercise Using a Honeywell Controller Configuring a Tuning Exercise in a Basic Controller

Configure the five algorithms shown in Figure E.1, which include control and process simulation. The simulation consists of the tags SIM-FLOW, SIM1, SIM2 and SIM3. SIM-FLOW simulates the fuel flow of the feed heater and SIM1, SIM2 and SIM3 simulate the feed heater's outlet temperature. This simulation is very simplified, but it has stability problems as they would occur in reality. The control is cascade control and consists of the primary controller TC-03 (temperature control) and the secondary controller FC-04 (fuel feed control).


Figure E.1: Block diagram of simplified feed heater simulation and control

The following data assumes the use of a Honeywell basic controller. It should not be too difficult to implement the same configuration in any other controller.

Table E.1: Controller/slot configuration parameters

SLOT 3

SLOT 4

SLOT 5

SLOT 6

SLOT 7

SLOT 8

TC-03

TC-04

SIM-FLOW

SIM1

SIM2

SIM3

CONF

0101

0103

2000

2000

2000

2000

CONF HI

8033

5030

3053

5063

6073

7083

CONF LO

1001

1001

1001

1001

1001

1001

CONF HI LOW

1010

0010

0000

0000

0000

0000

RANGE 0%

0.0

0.0

0.0

0.0

0.0

0.0

RANGE 100%

500.0

100.0

100.0

100.0

100.0

100.0

MODE

MAN

CASC

AUTO

AUTO

AUTO

AUTO

OUT HI%

90.0

100.0

MAX

MAX

MAX

MAX

OUT LO%

10.0

0.0

MIN

MIN

MIN

MIN

PV HI

450.0

90.0

MAX

MAX

MAX

MAX

PV LO

50.0

0.0

MIN

MIN

MIN

MIN

K

?

?

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