I-8000
Controller 005
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Q: Can
I use more than 32 I/O in my ISaGRAF project if I don¡¦t have ISaGRAF-256
or ISaGRAF-L ?
¡@
Ans: Yes.
When
you purchase an ISaGRAF software package, it contains a CD-ROM,
a license agreement and a
¡§Dongle¡¨.
The No. after ¡§ISaGRAF-¡¨ means the maxinum number of I/O variables
that you can declare in one
ISaGRAF project.
For example, ISaGRAF-256 allows you to use up to 256 I/O variables.
¡@
Every
time you compile your ISaGRAF project, the software will check the
¡§Dongle¡¨ which pluged in the printer
port of the
PC. If your ISaGRAF project uses more I/O variables than the ¡§dongle¡¨
provide, an error ¡§Too
many I/O variables¡¨
will
appeared.
¡@
The
method to solve this problem is
1.To
use a ¡§Dongle¡¨ with larger number.Or
¡K
2.Using ¡§Directly respresented variables¡¨ rather than declaring
so many variables with ¡§Input/Output¡¨ attribution. Please
refer to Section 3.4 of the ¡§User¡¦s Manual Of the I-8417/8817/8437/8837¡¨
or visit
ftp://ftp.icpdas.com/pub/cd/8000cd/napdos/isagraf/8000/english_manu/c3.4.pdf
Written
by
Chun Tsai
Date:2002/12/23 |