Data Storage - Omron CS1W-MC221 - 02-2008 Operation Manual

Data Transfer and Storage: Overview
4-1-5

Data Storage

CX-Motion
Saved on
floppy
disks or
hard disks.
Note
208
S+1: Always 0000 hex
S+2: The address of the first source word for position data to be
transferred. Specifies the first source address in internal MC
Unit RAM for position data that will be transferred.
Range: 0000 to 07CF hex (0 to 1999)
S+3: Always 0000 hex
S+4: The first destination address for transferred position data.
Specifies the first word address in the DM or EM Area that will
store the position data transferred from the MC Unit.
S+5: The transfer source area designation (DM or EM).
Specifies the DM or EM area that will store position data.
X = 0: DM Area, X = 1 to D: Corresponds to banks 0 to C in
the EM Area
3. Execute the IOWR instruction to transfer position data to the MC Unit.
4. Each position requires three words.
Transferred position data and system parameters are written to internal MC
Unit memory where they will be used for operation, but they will be lost if MC
Unit power is turned OFF or the Unit is restarted. The data must be saved in
flash memory using the command area to keep the data in the MC Unit per-
manently. Refer to 4-3 Saving Data for more details on storing data in flash
memory.
Once data has been saved, it is stored in internal MC Unit flash memory
where it will be available the next time MC Unit power is turned ON or the Unit
is restarted. Position data and system parameters that are simply transferred
without being saved will be lost when MC Unit power is turned OFF or the Unit
is restarted.
Teaching Box
Transfer
CPU Unit
Transfer
Transfer
Refer to 4-1-2 Types of Data for information on transferring and saving data
from the CX-Motion, CPU Unit, or a Teaching Box.
1. Data that has been saved is automatically read to internal memory from
flash memory when MC Unit power is turned ON or the Unit is restarted.
2. Do not turn OFF MC Unit power or restart the Unit while data is being
saved. Doing so may damage the flash memory in the MC Unit.
3. Flash memory has a limited service life. Data can be written up to 100,000
times.
MC Unit
Saved
RAM
Program
System parameters
When MC
Unit power is
Position data
turned ON or
the Unit is re-
started.
Section 4-1
Flash memory
Program
System parameters
Position data