USER MANUAL APS 6.0
Creating and Configuring Processor Files
5–9
Function Key Description
[F1] ISR Number
Allows you to enter the Interrupt Subroutine Number (3 to
255).
[F3] Modify G File Allows you to edit the G file.
[F5] Advanced Setup
Allows you to tell the system the number of input/output words
and lets you designate the number of words you want to scan.
The scanned input/output values must be less than or equal to
the maximum in order to maximize your I/O scan.
For example, a 1746NI4 Analog Module has 4 input channels.
If you set the scanned input words to 2, the I/O scan will only
scan the first 2 input words; thus optimizing your I/O scan.
The same method can be used for any other module that has
more than 1 input and/or output word associated with it.
[F7] G File Size
Allows you to designate the number of words in the
configuration file. You must specify this before modifying the
G file. The valid range is 1 to 256. See page 5-5 for more
information.
4. If your user manual specifies recommended parameters, enter those now using
the above function keys.
Effects of Processor Type Changes
Almost any program written for an SLC 500 fixed controller, SLC 5/01, or
SLC 5/02 processor may be used in an SLC 5/03 or SLC 5/04 processor. However,
some programs may contain instructions (for example, MSG, REF, SVC, and HSC)
that must be altered or removed before the program will run in the SLC 5/03 or
SLC 5/04 processor. APS creates an “error/warning” file that provides you with
information you can then use to correct any problems. An explanation of the
conversion error file begins on page 5–11.
Note The SLC 5/03 OS301 and OS302 pr
ocessors ar
e the same size, but the OS302 has
1284 bytes less memory available for the user pr
ogram due to the addition of the
multi-point function. Therefor
e, if you have a pr
ogram for the OS301 pr
ocessor that
is near maximum capacity, saving it as an OS302 pr
ogram will r
esult in an err
or.
In addition, you can convert an SLC 500t program to a MicroLogix 1000t
program. However, you first need to understand the ef
fect processor type changes
have on your programs.
Before changing pr
ocessor types, copy and r
ename the ladder program file you
intend to convert.