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MELSEC-
A
6 SEQUENCE PROGRAM USED FOR POSITIONING CONTROL
*
1
When writing data to the D75P2 buffer memory using the TO command, the
control data and write data are designated in the transmission buffer of the
corresponding master module.
Designated
data
Item Details
Setting
range
Setting
side
Control
data
Dummy area – – System
Station No., request
code
Station No. (designate with high-order bytes (bits 8 to 15)
Designate the station No. of the intelligent device station to
be accessed.
0 to 64 User
Request code (designate with low-order bytes (bits 0 to 7)
Designate the write request code.
12
H User
Transmission buffer
write data size (byte)
Designate the total No. of bytes of the designated data from
the following quality items.
Control data : Quantity to No. of write points
Write data : Data to be written into D75P2 buffer memory
8 + No. of
write points
2
User
Quantity (Fixed value) 1 User
Access code, attribute (Fixed value) 0004H User
Buffer memory
address
Designate the head address (0H or higher) of the buffer
memory.
0
H to 17D4H User
No. of write points
(word)
Designate the data size (No. of words) to be written in so that
the D75P2 buffer memory address 17DD
H is not exceeded.
17DD
H
(buffer memory address -1) + No. of write points
1 to 480
User
Write data
Designate the data to be written into the target D75P2 buffer memory designated with the control
data buffer memory address items and No. of write point items. Designate the amount for the
control data No. of write points.
User
*
2
The following control data is stored in the master module reception buffer.
Designated
data
Details
Setting
side
Complete
status
The status when the command is completed is stored.
0 : Normal completion
Other than 0 : Error completion (error code)
Refer to the CC-Link Master Module User's Manual
System
Station No.,
request code
Station No. (designate with high-order bytes (bits 8 to 15))
The station No. of the accessed intelligent device station is stored.
System
Request code (designate with low-order bytes (bits 0 to 7))
The write request code (12H) is stored.
System