Omron SYSMAC CS Series User Manual

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Maintenance Section 7-2
When the same function block file (appended with the .ist extender) as the function block data on the
Loop Control Board is not set aside
Note The same function block file (appended with the ist. extender) as the function
block data on the Loop Control Board is needed to read the function block
data on the Loop Control Board. If the same function block file (appended with
the ist. extender) has not been set aside, the following restrictions apply to
that data when the function block data on the Loop Control Board is simply
read. Otherwise, these restrictions do not apply to ITEM data.
• The function blocks that are read will be connected automatically using
the shortest connections possible. If the connections between the original
function blocks were more indirect, then the connections between the
resulting file blocks may be different. (The actual connection information
used in execution, however, will be the same.)
• Annotation data is not read.
• Output comments in ladder diagrams are not read.
• Connections between user link tables and function blocks are not
restored. These will be automatically connected when a user link table
name is set.
Regardless of the above restrictions, follow the procedure below to replace
the Loop Control Board when the function block data on the Loop Control
Board to be replaced is uploaded and downloaded to the new Loop Control
Board.
1,2,3... 1. Turn power OFF to the PLC.
2. Connect the cable to the CPU Unit.
3. Turn power ON to the PLC.
4. Upload the function block data from the Loop Control Board.
5. Turn power OFF to the PLC.
6. Replace the Loop Control Board.
7. Turn power ON to the PLC.
8. Wire the function blocks in CX-Process Tool as necessary based on the
function block file (appended with the .ist extender) that was uploaded from
the Loop Control Board.
9. Download the function block file to the Loop Control Board.
10. Back up the parameters.
11. If necessary, use CX-Process Tool to compare all function block files to
check whether or not the download has been executed successfully.
12. Save the function block file whose function blocks have been wired in the
software on the hard disk or other storage medium.
13. Check the Loop Control Board again for any malfunction.

Omron SYSMAC CS Series Specifications

General

Brand	Omron
Model	SYSMAC CS Series
Category	Controller
Language	English