Exchanging Data - Omron C200HW Operation Manual

Exchanging Data

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Exchanging Data

Operating Memory Area
IR area
Parameter area
Common
parameters
DM area
Axis parameters
Operating Data Area
DM or EM area
Data transfer area
DM or EM area Address M data
Address N data
The Position Control Unit exchanges data with the Programmable Controller as
shown in the following diagram. This explanation is provided using the
C200HW-NC413 as an example. The size of the allocated areas differs with the
NC113 and NC213. For details regarding the data areas for the various PCUs,
refer to Section 4 Data Areas.
I/O refresh
(Operation commands, data
transfer commands, etc.)
I/O refresh (PCU status)
At power-up or restart
(Common parameters)
At power-up or restart
(Axis parameters)
I/O refresh
(Data transfer and operation
command information)
I/O refresh (PCU status)
When data transfer
commands are executed.
When IOWR or IORD is
executed.
(Data for positioning)
When data is transferred
Section
PCU
Command
interpretation
Status
Common
parameters
Data transfer and
operation command
information
Status
Address
Internal memory
Axis parameters
Saving Power-up
data or restart
Flash memory
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