Omron SYSMAC C500-NC113 Operation Manual page 132

Status Area
9-1-2 Creating and Transferring Data
1, 2, 3...
Data Memory
DXXXXX
Address N
Number
of
address
N words
Address M
Number
of
address
M words
Status information such as the address of the positioning action currently being
executed is read from the Position Control Unit to the CPU Unit by the CPU Unit's
Intelligent I/O Read instruction.
Note Commands and data cannot be transferred simultaneously by the Intelligent I/O
Write instruction.
1. First create the data (positioning actions, parameters, etc.) in the CPU Unit's
DM area, beginning with the leading address (i.e., the PCU's internal RAM
address).
2. Then use the Intelligent I/O Write instruction (WRIT) to transfer that data to
the Position Control Unit.
3. The Position Control Unit will store the data by address, beginning with the
leading header address, in its internal RAM.
CPU Unit
m
words
"m" number of words
are transferred from
DXXXXX to the
PCU allocated
words n and n+1.
Position Control Unit
Allocated I/O
WRIT
words
m
DXXXXX
Address N
n
Stored
by
addres
s.
Address M
Section 9-1
Internal RAM