Exchanging Any Data - Omron CS1W-LC001 Operation Manual

Exchanging Data with the CPU Unit
Example1:
Example 2:
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Exchanging Any Data

Note: If files are downloaded from the CS-Process Tool in major item units (units of
Loop Control Unit), the Loop Control Unit will stop operation. If data is
downloaded in function block units, however, operation will continue. This
flag is thus provided so that changed in the function blocks caused by
downloading from the CS-Process can be detected to implement the
necessary processing.
To perform processing from the CPU Unit according to the run status of
the Loop Control Unit
So that the CPU Unit can perform specific processing (for example, changing
the analog output value to a specific value) according to the run status of the
Loop Control Unit, create a Step Ladder Program taking bits 00 to 05 of the
leading word n of the allocated CIO area (25 words per Unit within the range
1500 to 1899 words are occupied according to the unit number) on the CPU
Bus Unit as the input conditions.
To perform processing when the Loop Control Unit has stopped running
Execution of a specific process is enabled as follows when the Loop Control
Unit has stopped running or a data exchange error has occurred with the
CPU Unit functioning as a CPU Bus Unit:
Loop Control Unit running
nth word bit 00
CPU Bus Unit Error
Unit Number flag
To notify that function blocks have changed while the Loop Control Unit was
running.
If a function block is changed from the CX-Process Tool during Loop Control
Unit operation, notification is made by creating a warning or other indication
of the change.
The Loop Control Unit can exchange data with the CPU Unit or another Loop
Control Unit by either of the following two methods:
Á
To exchange data at all times: Use the CPU Unit Terminal block or
Á
To exchange data with the CPU Unit whenever necessary:
Function Block
Change Flag
nth word bit 15
Expanded CPU Unit Terminal block.
Issue FINS commands to the Loop Control
Unit using the CMND command in the user
program.
Section
Processing at
stoppage of Loop
Control Unit
Notification
processing for
function block
change
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