Watlow Series 920 Microprocessor-Based Ramping Control Manual do Utilizador descarregar pdf (Página 38)

The Four

JUMPLOOP

Types

The Series 920 gives you the capability to perform four basic

jumploop

types in

your programming. The backward jump,

foward

jump, nested loops, and

intertwining loops. These are only definitions of the four loops. The Series

920 has very few rules concerning loops in your program.

Backward Jump

The Backward jump is the most common jump. A backward jump will force

you to a step already performed. The Jump Step (JS) must be less than the

current step. You cannot

JUMPLOOP

to the step that you are on.

Step

SETPOINT

Step

SETPOINT

Step

SETPOINT

Step

JUMPLOOP

JC-01

Step

STOP

The steps in sequence will be:

2,3,4,5,2,3,4,5,6.

Your Jump Count (JC) can be anything from 0

100.

If you enter

this

will

an infinite looping and will never progress to Step 6.

Forward Jump

The next loop type is a

Forward

jump. By definition you can jump forward.

The Jump Step must be greater than this step.

Step

SETPOINT

Step

SETPOINT

Step

JUMPLOOP

JC-01

Step

SETPOINT

Step

STOP

The steps in sequence will be:

1,2,3,5.

WATLOW Series 920 User’s Manual

How To

Program

the Series 920, Chapter 6

1 2 ... 33 34 35 36 37 38 39 40 41 42 43 ... 79 80

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Watlow Series 920 Microprocessor-Based Ramping Control Manual do Utilizador Página 38

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