Omron CS1W-LC001 Operation Manual page 32

Loop control unit
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Outline
12
CX-Process Monitor
Uploading of
data to be
monitored
Manipulation of data
such as changes to
Set Point
Data Exchange with SCADA Software
Commercially available SCADA software can also be used to read and write
function block data for the Loop Control Unit. Words in the I/O memory of the
CPU Unit are allocated for function block data so that Control Block,
Operation Block, and External Controller Block data can be read and written
using CSV tags with SCADA software. Expanded CPU Unit Terminal blocks
can also be used to read and write data using CSV tags for other ITEMs.
CSV tags are created using the CX-Process Tool.
SCADA software
Set CSV tags
and read
Set CSV tags
and write
Set CSV tags
and read
Set CSV tags
and write
Data Exchange with Loop Control Units at Other Nodes
Loop Control Unit data can be exchanged with Loop Control Units at other
nodes via Controller Link.
The following two methods can be selected.
1) When part of the data link is used (CPU Unit Terminal or Expanded
CPU Unit Terminal block)
CPU Unit
I/O memory
Data Memory
At each
for Node
operation
Terminals
cycle
CPU Unit
I/O memory
Words specified
for Send All
Blocks
Each
execution
cycle
Words specifed
for Receive All
Blocks
Specified words
Specified words
Section
Loop Control Unit
Node Terminal
block
Control block
PID, etc.
Loop Control Unit
Send All
Blocks
Control Block
ITEMs
Operation
Block ITEMs
Receive All
External
Blocks
Controller
Block ITEMs
Expansion CPU Unit
Terminals
1-1

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