Rockwell-automation Logix5000 Controllers Add-on Instructions Programm Manuel d'utilisateur Page 24
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Chapter 1 Designing Add-On Instructions
• Copy the instruction signature
• Create or copy a signature history entry
• Create instances of the Add-On Instruction
• Download the instruction
• Remove the instruction signature
• Print reports
The instruction signature does not prevent referenced Add-On Instructions or
User-defined Data Types from being modified. Changes to the parameters of a
referenced Add-On Instruction or to the members of a referenced User-defined
Data Type can cause the instruction signature to become invalid. These changes
include:
• Adding, deleting, or moving parameters, local tags, or members in
referenced User-defined Data Types.
• Changing the name, data type, or display style of parameters, local tags, or
members in referenced User-defined Data Types.
If you want to enable project documentation or source protection on an Add-On
Instruction to be sealed with an instruction signature, you need to import the
translated information or apply source protection before generating the signature.
You must have the source key to generate a signature or to create a signature
history entry for a source-protected Add-On Instruction that has an instruction
signature.
See Defining Source Protection for an Add-On Instruction on page 60
for more
information on source protecting your Add-On Instruction.
Safety instruction signature
When a sealed safety Add-On Instruction is downloaded for the first time, a SIL 3
safety instruction signature is automatically generated.
For details on how to certify a safety Add-On Instruction, refer to the
GuardLogix
Controller Systems Safety Reference Manual, publication 1756-RM093.
Programming languages
Select the programming language based on the type of application you are
developing. Ladder Diagram, Function Block Diagram, and Structured Text can
be used for Add-On Instruction logic.
24 Rockwell Automation Publication 1756-PM010F-EN-P - October 2014
- Programming Manual 1
- Important user information 2
- Summary of changes 3
- Table of contents 5
- Chapter 2 6
- Chapter 3 7
- Chapter 4 7
- Using Add-On Instructions 7
- Importing and Exporting 7
- Add-On Instructions 7
- Table of Contents 8
- Preface 9
- Studio 5000 environment 9
- Additional resources 9
- Understanding terminology 10
- Chapter 1 13
- Introduction 13
- About Add-On Instructions 13
- Components of an Add-On 14
- Instruction 14
- Local tags 16
- Parameters 16
- Data Type 17
- Logic routine 18
- Optional Scan Modes routines 19
- Instruction signature 19
- Signature history 20
- Change history 21
- Considerations for Add-On 22
- Instructions 22
- Safety Add-On Instructions 23
- Safety instruction signature 24
- Programming languages 24
- Transitional instructions 25
- Instruction size 25
- Runtime editing 26
- Nesting Add-On Instructions 26
- Programmatic access to data 28
- ’this’ as the Instance Name 29
- Considerations when 30
- Data access control 34
- Constant values 35
- External Access 35
- Planning your Add-On 36
- Instruction design 36
- Naming conventions 37
- Source protection 37
- Nesting - reuse instructions 37
- Scan mode routines 38
- Help documentation 38
- Defining Add-On Instructions 39
- Creating a parameter 40
- Creating a module 42
- Creating local tags 44
- Editing parameters and 45
- Updates to arguments 46
- Copying parameter or local 47
- Creating logic for the 48
- Add-On instruction 48
- Defining operation in 49
- Enabling scan modes 50
- Prescan routine 51
- Postscan routine 53
- EnableInFalse routine 54
- Using the EnableIn and 56
- EnableOut parameters 56
- Changing the class of an 57
- Add-On Instruction 57
- Testing the Add-On 58
- Defining source protection 60
- Generating an Add-On 61
- Creating instruction help 63
- Project documentation 66
- Motor starter instruction 67
- Example Definition Editor 68
- Simulation instruction 71
- Ladder diagram configuration 72
- Including an Add-On 77
- Instruction in a routine 77
- Referencing a hardware 79
- Tips for using an Add-On 81
- Programmatically access a 81
- Starter Add-On Instructions 82
- Monitoring the value of a 84
- Viewing logic and monitor 85
- Determine if the Add-On 87
- Instruction is source 87
- Copying an Add-On 88
- Storing your Add-On 89
- Creating an export file 91
- Exporting to a single file 93
- Importing an Add-On 94
- Import configuration 95
- Updating an Add-On 96
- Instruction to a newer 96
- Rockwell Automation support 104
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