Omron CJ1W-DRM21 - Page 79

3-3
3 Data Exchange with the CPU Unit
CJ-series DeviceNet Units Operation Manual for NJ-series CPU Unit(W497)
3-1 Data Exchange with the CPU Unit
3
3-1-1 Data Flow
I/O port
Software switch,
status data
Software switch,
status data
AT specification
CPU Unit
User program
:
:
DeviceNet Unit
Software switches (I/O refresh)
Status (I/O refresh)
Device variable
for CJ-series
Unit
Allocations setting table,
slave detailed
status data
Allocations setting table,
slave detailed
status data
AT specification
:
:
Allocations setting table
(I/O refresh)
Status (I/O refresh)
Device variable
for CJ-series
Unit
Memory used for
CJ-series Unit
Memory areas such as
CIO and DM
Slave I/O message
communications data
AT specification
:
:
:
:
:
:
:
:
Slave output, message
communications data
(I/O refresh)
Slave input, message
communications data
(I/O refresh)
Device variable
for CJ-series
Unit