Omron CS1W-LC001 Operation Manual page 31

Outline
Data Exchange with Specified CPU Unit I/O Memory
I/O operations can be performed internally on the Loop Control Unit
constantly (at each operation cycle) with any specified CPU Unit I/O memory.
In this case, the CPU Unit Terminal block or the Expanded CPU Unit
Terminal block is used, and the I/O memory address must be specified.
Data exchange is possible with the following I/O memories:
- CIO (channel I/O) Area
- Work Area (W)
- Holding Area (H)
- Data Memory (D)
- Extended Data Memory (E) bank No. 0
Note 1 This function can also be used to designate units (CompoBus/D,
CompoBus/S and other Communications Units) on which field terminals are
not supported, and CPU Unit I/O memory (remote I/O allocated area, etc.) for
enabling I/O.
Note 2 The Loop Control Unit uses the CPU Unit Terminal block or the Expanded
CPU Unit Terminal block (regardless of the user program on the CPU Unit) to
read and write to specified CPU Unit I/O memory. So, do not perform write
operations on the same I/O memory addresses between the Loop Control
Unit and the CPU Unit.
Data Exchange with CX-Process Monitor
Loop Control Unit data can be exchanged with CX-Process Monitor. Data or
analog signals for controller use can be uploaded to CX-Process Monitor
running on a computer connected via the RS-232C interface or a network
such as Controller Link.
Data such as the Set Point Values can also be changed on CX-Process
Monitor.
There are two data exchange modes: on-demand mode and Data Link mode.
(For details, see 3-4 Exchanging Data with CX-Process Monitor/SCADA
Software and Other Nodes and Appendix-2 How to Use the Node Terminal
Blocks.)
CPU Unit Loop Control Unit
CPU Unit Terminal block
or Expanded CPU Unit
I/O memory
Terminal block
At each
operation
cycle
At each
operation
cycle
Section 1-1
11