Watlow LogicPro - Manual (Page 126)

Chapter 9: Function Block Diagrams LogicPro User’s Guide
110 Watlow Anafaze Doc.# 28002-00 Rev 3.00
Figure 9.3 Symbolic Name on Function Block
in a FBD program
NOTE! Branched connections are not currently allowed.
Connections can only be made on a one-to-one
basis; in other words, a Variable element can only
be connected to one input or output.
NOTE! Feedback loops to/from a single function block
(connections which both originate and terminate
on the same element or elements of a common
function block) are not allowed. BUT, it is permis-
sible to create a feedback loop to a system of
function blocks.
Assigning Variables to Variable Elements
To assign variables to Variable elements:
1. Select the [Selector] tool.
2. Double-click on the Variable element you wish to assign.
This element must already be connected to either an
input or output. This causes the
Variables dialog box to
appear.
3. From the dialog box, select the appropriate Variable
Type and Data Type .
4. Either select the Variable you wish to assign to this
Variable element or click on
[Add] to create a new
Variable.