Omron CS1W-MC221 -, Operation Manual

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Data Transfer and Storage: Overview Section 4-1
Note 1. From CX-Motion, all data is read or written at the same time. Only portions
of one type of data cannot be specified.
2. All parameters must be written. Refer to SECTION 3 MC Unit Internal Data
Configuration for details.
3. Servo parameters can be read or written.
4. Present positions, error information, program execution information, and I/
O signal status can be read.
5. Present positions, error information, and I/O signal status can be read.
6. All parameters must be read. Refer to SECTION 3 MC Unit Internal Data
Configuration for details.
7. Parameters changed with G69 in the G code cannot be saved.
4-1-3 Using IOWR and IORD Instructions to Transfer Data
Example 1
In the following example, position data is written to the MC Unit by executing
the IOWR instruction.
1,2,3... 1. Set the following data for the operands of the IOWR instruction.
C: The first destination address in the MC Unit for the position data.
S: The first word in the CPU Unit (e.g., in DM Area) containing the posi-
tion data to be transferred.
D: The destination unit number and total number of words for the position
data that will be transferred. Each position requires three words.
2. Set the data to be transferred starting at the word specified for S.
3. Execute the IOWR instruction to transfer position data.
Position data
(3 words/position)
:
:
Execute
(3)
(2)
MC Unit CPU Unit
Address
Position data
0000
0001
:
:
:
:
:
:
:
:
:
:
:
1998
1999
A0000
A0001
A1998
A1999
:
:
:
:
:
:
:
:
:
:
:
IOWR
C
S
D
(1)
Ladder program
[DM]
Write position data
:
: