Watlow LogicPro Instrukcja Użytkownika Pobierz pdf (Strona 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.

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Watlow LogicPro Instrukcja Użytkownika Strona 230