Omron CX-PROCESS TOOL V5.2 - REV 10-2010 Operation Manual page 284

Downloading, Uploading and Comparing Data
1, 2, 3...
258
• Ver. 2.0 or Later
Block diagrams are displayed when an upload is performed. Block diagram
line data, however, is not included, so lines are drawn automatically. Afterward,
manually adjust the connection lines.
• Ver. 1.5 or Earlier
Connection line diagrams between function blocks are not displayed after an
upload is performed. (See note 1.) (To display connection line diagrams, first
clear the ITEM data for the connection line data, and then it is necessary to
connect lines.
Note At this time, the analog connection data as execution item data is not lost; it is
saved. Therefore, the I/O for analog/accumulated values will be executed nor-
mally even if the data is downloaded to the Loop Controller and operation is per-
formed. ITEM 200 (mnemonic flag) will automatically become 1 if a step ladder
program (block model 301) is uploaded. Therefore, to display ladder diagrams,
first set ITEM 200 (mnemonic flag) to 0 and then convert mnemonics to ladder
diagrams.
2) Upload Previous (Update Transfer from Loop Controller to Computer)
If there is a function block file as a base of the function block data in the LCU/LCB
element, the function block data in the Loop Controller will be read. Data can be
read in units of LCU/LCB elements or function blocks.
Data on the Edit Block Diagram Screen will be displayed by using the block dia-
gram information file. After function block data created with the CX-Process Tool
is downloaded to the Loop Controller and the operation data is changed with the
CX-Process Monitor, select this method if only the operation data needs to be
refreshed.
To use this method for data in units of LCU/LCB elements, the source LCU/LCB
element (LCB01, LCB03, LCB05, LCB05D, LC001-1 to LC001-3) currently
opened with the CX-Process Tool must match the function block data in the Loop
Controller in the following items.
1. Registered function block (block address vs. block model)
2. Block diagram information
3. Step ladder program in mnemonics
If the LCU/LCB element does not match with the function block data in item 1 or
2, the data with the same ITEM number in the function block with the same block
address will be under any condition read (regardless of whether the block model
matches or not). The data will overwrite the data currently opened. Therefore,
the data currently opened may change to illegal data.
If the LCU/LCB element does not match with the function block data in item 3, the
operation depends on the setting of ITEM200 (the Mnemonic Flag).
• When ITEM200 = 1, the mnemonic code that is read will not match the previous
ladder diagram. Therefore, before uploading data in this method, it is recom-
mended to compare the initial setting data items in the Loop Controller and
check that the LCU/LCB element matches the function block data in item 1
through 3 (especially 1 and 2). Refer to 4-3-3 Compare for details.
• When ITEM200 = 0, the mnemonic code that is read is automatically disas-
sembled (converted from Mnemonics to Ladder).
Note When a Step Ladder Program (Block Model 301) Is Uploaded
• ITEM 200 (Mnemonic Flag) Is 1
Ladder diagrams cannot be displayed. To display ladder diagrams, first set
ITEM 200 (mnemonic flag) to 0 and then convert mnemonics to ladder.
• ITEM 200 (Mnemonic Flag) Is 0
Reverse assembly (i.e., conversion from mnemonics to ladder diagrams) will
automatically be performed when the download is performed.
Section 4-3