Watlow LogicPro - Manual (Page 75)

LogicPro User’s Guide Chapter 6: Variables
Doc.# 28002-00 Rev 3.00 Watlow Anafaze 59
a) Place a check mark in either the Input or the Out-
put check box.
b) Select the I/O driver from the list. The drivers in the
list are determined by the Resource you selected.
Information on these drivers is located in Chapter
12, “I/O Drivers.”
c) Enter the I/O physical address. See Chapter 12,
“I/O Drivers,” for addressing information.
d) Select one of the following I/O sizes from the list of
sizes:
• Bit — a binary digit that can hold the value of
0 or 1.
• Word — 16 bits in length.
10. Enter any comments in the Comment field.
11. Click [OK] .
NOTE! If the I/O point is an Input, you must choose Input.
If the point is an output, choose Output if you in-
tend for the logic Program to set the output’s
state. You may also choose Input for a physical
output if its state is set by the closed-loop control
Program and the logic Program is only interested
in sensing the value or state of the physical out-
put. For database registers, choose Input or Out-
put based on whether the logic Program sets the
value (output) or just reads it (input).
The Variable appears in the dialog box list. The next time you
add a Variable, the
Add Variable dialog box remembers the
previously entered type and size fields. This makes it easier
and faster to add many similar Variables to a Resource/
Program.
Editing a Resource/Program Variable
Resource and Program Variables are edited in the same
manner. To edit a Resource/Program Variable:
1. Select the Variable you want to edit in the Resource/
Program Variables dialog box.
2. Click [Edit] . The Edit Variable dialog box appears.
3. Enter the appropriate information in all the dialog box
fields, according to the procedure in “Adding a Re-
source/Program Variable” on page 56.