Effects of processor type changes – Rockwell Automation 9323-PA1E USER MANUAL APS 6.0 User Manual

Page 76

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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 1746ĆNI4 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 processors are the same size, but the OS302 has
1284 bytes less memory available for the user program due to the addition of the
multi-point function. Therefore, if you have a program for the OS301 processor that
is near maximum capacity, saving it as an OS302 program will result in an error.

In addition, you can convert an SLC 500

t program to a MicroLogix 1000t

program. However, you first need to understand the effect processor type changes
have on your programs.

Before changing processor types, copy and rename the ladder program file you
intend to convert.

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