beautypg.com

Jumploops, Four jumploop types, Backward jump – Watlow Series 922 User Manual

Page 40: Forward jump, The four jumploop types

background image

40

WATLOW Series 922 User's Manual

How To Program the Series 922, Chapter 6

Jumploops

The Four JUMPLOOP Types

The Series 922 gives you the capability to perform four basic jumploop types in
your programming. The backward jump, forward jump, nested loops, and
intertwining loops. These are only definitions of the four loops. The Series
922 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 2

SETPOINT

Step 3

SETPOINT

Step 4

SETPOINT

Step 5

JUMPLOOP

JS - 02

JC - 01

Step 6

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 0, this will be
an infinite loop 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 1

SETPOINT

Step 2

SETPOINT

Step 3

JUMPLOOP

JS - 05

JC - 01

Step 4

SETPOINT

Step 5

STOP

The steps in sequence will be: 1, 2, 3, 5.