Omron CX-PROCESS TOOL V5.2 - 12-2009 Operation Manual page 32

CX-Process Tool
Function Block Files (.ist)
Block Diagram
Information Files (.mtbd)
Mnemonics/Ladder
Diagram Information
Files (.mtld)
4
A function block file consists of the data for the function blocks of a single CPU
Unit (i.e., for up to three LCU elements and/or one LCBjj element). This file is
created by selecting Settings – Insert. The file will be automatically named
"Node XX," where XX denotes the node number between 01 and 32.
The following data is contained in a function block file.
Item
Function block data
for one Loop
Controller
The contents of the function block file (.ist) are used to compare download data
and upload data. Initial settings (S), operation data (O), or initial settings and op-
eration data together can be set in the function block file.
Note 1. The function block file does not include mnemonic data for Step Ladder Pro-
gram Blocks. The mnemonic data is stored in the mnemonics/ladder dia-
gram information file. Refer to Mnemonics/Ladder Diagram Information File
(.mtld) Created by System below.
2. Function block files (.ist) created for the CX-Process Tool can be imported to
the Project Workspace data by selecting Add Function Block File from the
File Menu.
The block diagram information file consists of graphic data that shows the soft-
ware connections.
The system will automatically store this file with the function block file (.ist) in the
same folder whenever a block diagram is edited. The user does not normally
need to access the block diagram information file directly.
Note 1. When backing up or changing the storage location of this file, the file must be
backed up or moved together with the node function block files because
these files must always be in the same folder. The block diagram information
files are named as shown below.
File name and extension: Name of function block file ff ff .mtbd
2. The block diagram information file (.mtbd) is not used for downloading,
uploading, or comparing data, but the block diagram information between
function blocks (i.e., ITEM data) is uploaded and downloaded if the Loop
Control Unit is version 2.00 or later or an LCBjj is used. Thus, newly
uploaded data will have connection diagrams displayed between function
blocks. (This is not actually the same as the connection diagram information
file, and even though connections themselves will be restored, complex
connections will be normalized for display.)
A mnemonics/ladder diagram information file consists of mnemonic data and
ladder diagram data for sequence instructions in step ladder programs.
The system will automatically store this file with the function block file (.ist) in the
same folder whenever a Step Ladder Program Block is registered. The user
does not normally need to access the mnemonics/ladder diagram information
file directly.
Note 1. When backing up or changing the storage location of this file, the file must be
backed up or moved together with the node function block files because
Data name
Initial settings (S) Data on registered function blocks
(block address allocations),
analog/accumulator signal software
connections, and initial settings of
each function block.
Operation data (O) Operation data for each function block
Section 1-1
Description
Function block group
LCU/LCB number
(04 for LCBjj)