Honeywell UDC 3300 manual Loop 1 and Loop 2 of a dual loop controller, Functional overview

Functional overview	Figure 5-2 is a block diagram of a Loop 1 of a single loop controller and
	Loop 1 and Loop 2 of a dual loop controller.

Figure 5-2 Functional Overview Block Diagram of a Single Loop (Loop #1) or Dual Loop

Controller (Loop #1 and Loop #2)

IN 1

Ratio Bias

IN 2

Ratio Bias

IN 3

Ratio Bias

•

•

•

To RSP

• •

1

• •

2 •

•

3

IN 3 In Alg1

•

•

IN 2

In Alg2

To RSP

To RSP

			PV			Input 1
			Source
						Input 2
				INPUT		Input 3
					INPUT A	In Alg 1
				ALGORITHM 1 or 2
RSP			OUT 2			In Alg 2
Source				FEEDFORWARD		Output 1
						Output 2
			To RSP	INPUT A ONLY		Input 1
						Input 2
			PV			Input 3
					INPUT B	In Alg 1
						In Alg 2
Remote SP		SP	PID			Output 1
	SP		CONTROL			Output 2
	Source		ALGORITHM			Input 1
Local SP			Loop 1 or Loop 2
						Input 2
					INPUT C	Input 3
						Output 1
						Output 2
SP	3SP					None
2SP

FEEDFORWARD

SUMMER OR

MULTIPLIER

Output without Feedforward or Manual Mode

To Final

OUTPUT Control24180

Element

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