Introduction To Function Blocks - Omron CX-PROGRAMMER V8.1 Operation Manual

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This section introduces the function block functionality of the CX-Programmer and explains the features that are not
contained in the non-function block version of CX-Programmer.
1-1
Introducing the Function Blocks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1-1
Overview and Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1-2
Function Block Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1-3
1-1-4
(and later Versions) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2
Function Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-1
Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-2
Advantages of Function Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-2-3
Function Block Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-1
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-2
Variable Usage and Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-3
Variable Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3-4
Variable Properties and Variable Usage . . . . . . . . . . . . . . . . . . . . . .
1-3-5
Internal Allocation of Variable Addresses . . . . . . . . . . . . . . . . . . . .
1-4
1-5
Usage Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-5-1
1-5-2
Reusing Function Blocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-6
Version Upgrade Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction to Function Blocks

SECTION 1
4
4
5
8
8
11
11
12
13
18
18
19
19
20
21
23
23
23
24
25
3

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