Rockwell-automation 57C620 AutoMax Programming Executive Version 3.8 Instrukcja Użytkownika Pobierz pdf (Strona 241)

DĆ1Limitations on Object File Size

Appendix D

Limitations on Object File Size

This

appendix explains application and configuration object file

limits for AutoMax

Processor modules. Note that there are limits both on

the size of tasks that can be

compiled and on the size of tasks that can be loaded onto the rack.

When BASIC, Control Block, and Configuration files are compiled, the object,

symbol, and data size are printed to the screen and totaled. For Control Block

tasks, estimated execution time is also printed to the screen. Note that for BASIC

and Control Block tasks, the data required for arrays is included in the total

displayed but does not actually affect the maximum allowable task size.

Task Size Limitations

Object Symbol Data

Configuration file * ** **

BASIC task *** 64K ***

AutoMax

Control Block

task

32K <ĆĆĆĆĆĆĆĆ 32K ĆĆĆĆĆĆĆĆ>

UDC Control Block

task

20K <ĆĆĆĆĆĆĆĆ 20KĆ ĆĆĆĆĆĆĆĆ>

# of Symbols

PC/Ladder Logic task 2047

* The

configuration file has an object size of 0 unless the reconstructible option

is used.

** The size limit for the configuration file is determined by the amount of

memory available on the Common Memory module (M/N 57C413B or M/N

57C423), or if a Common Memory module is not being used, the AutoMax

Processor that will store the configuration file.

*** The size limit for the object and data is determined by the

amount of memory

available

for application tasks on the AutoMax Processor that will run the task.

Refer to the AutoMax Processor Module instruction manual (JĆ3650) for this

information.

Determining the Size of Individual Tasks

For Control Block, BASIC, and Configuration files, after the task is compiled, the

pertinent

information is printed to the screen both in terms of

object, symbol, and

data, and in total. To the total figure add approximately 1K for system overhead.

This figure will tell you how much memory on the Processor or UDC each task

requires. You can also choose to create log files when you compile or verify

application

tasks. The

log file will contain the same statistics printed to the screen.

For PC tasks, the command F3 I in the PC editor is used to determine both the

number of symbols and the approximate amount of memory the task will require

on the Processor (this includes system overhead).

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