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5
Introducing the Function Blocks
Section 1-1
Function Block Library
Files (*.cxf)
A function block definition created in a project with CX-Programmer Ver. 5.0
can be saved as a file (1 definition = 1 file), enabling definitions to be loaded
into other programs and reused.
Project Text Files
Containing Function
Blocks (*.cxt)
Data equivalent to that in project files created with CX-Programmer Ver. 5.0
(*.cxp) can be saved as CXT text files (*.cxt).
1-1-4
CX-Programmer Ver. 5.0 Function Block Menus
The following tables list CX-Programmer Ver. 5.0 menus related to function
blocks. For details on all menus, refer to the
CX-Programmer Ver. 5.0 Opera-
tion Manual
(W437).
Main Menu
FunctionBlock1
FunctionBlock2
Project file (.cxp)
PLC1
PLC2
Global symbol table
I/ O table
PLC Setup
PLC memory table
Program (wit h rung comments)
Local symbol table
Section 1 (with instances)
Section 2 (with instances)
END section (with instances)
Function block def initions
Each function block can be
stored in a separate
definition file (.cxf).
Instances created
in program
sections.
Main menu
Submenu
Shortcut
Function
File
Func-
tion
Block
Load Function
Block from File
---
Reads the saved function block library files (*.cxf).
Save Function
Block to File
---
Saves the created function block definitions to a file (
[function block
library file]*
.cxf).
Edit
Update Function Block
---
When a function block definition’s I/O variables have been changed
after the instance was created, an error will be indicated by display-
ing the instance’s left bus bar in red. This command updates the
instance with the new information and clears the error.
Insert
Function Block Invocation
F
Creates an instance in the program (section) at the present cursor
location.
Function Block Parameter
P
When the cursor is located to the left of an input variable or the right
of an output variable, sets the variable’s input or output parameter.
PLC
Func-
tion
Block
Mem-
ory
Function Block
Memory Allocation
---
Sets the range of addresses (function block instance areas) inter-
nally allocated to the selected instance’s variables.
Function Block
Memory Statistics
---
Checks the status of the addresses internally allocated to the
selected instance’s variables.
Function Block
Instance Address
---
Checks the addresses internally allocated to each variable in the
selected instance.
Optimize Function
Memory
---
Optimizes the allocation of addresses internally allocated to vari-
ables.
Содержание CS1-H Series
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