Setpoint – Watlow LogicPro User Manual
Page 230
Chapter 12: Function Blocks
LogicPro User’s Guide
214
Watlow Anafaze
Doc.# 28002-00 Rev 3.00
Setpoint
A setpoint can be used in a logic program by creating a vari-
able in the logic program that points to the setpoint parameter
as if it were physical I/O. This allows the logic program to ex-
amine or set the value of a setpoint. The I/O address for Set-
point is constructed from the channel number only.
To read or set a setpoint with a logic program variable:
1.
Open the
Add Program/Resource Variable
dialog box.
2.
Enter a unique variable
Name
.
3.
Select
INT
from the
Type
list.
4.
Select
Input
or
Output
by clicking the corresponding check
box.
5.
Select
Setpoint
from the
IO Driver
list.
6.
Select
WORD
as the
IO
Size.
7.
In the
IO Physical Address
field enter the channel number
(1 to 5 for CPC204; 1 to 9 for CPC208).
8.
Click
[OK]
.
Setpoint Addressing Example
To create a variable named Setpoint_2 that reads the value of
the setpoint of channel 2, set the options in the
Add Program/
Resource Variable
dialog box as illustrated below.