Mitsubishi Electric Q172DSCPU, Руководство по программированию

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6 CAM FUNCTION
(1) Cam data operation with MT Developer2
Cam data can be modified while viewing the waveform with MT Developer2.
The cam data is written/read/verified to the cam storage area with
MT Developer2, however it cannot be executed to the cam open area.
The waveform generated by the cam auto-generation function can be confirmed
on the "Cam graph" of the "Cam data window" through reading with
MT Developer2.
(2) Cam data operation with Motion SFC program
Cam data read/write operation, cam auto-generation and cam position
calculation can be executed with the Motion SFC program. (Refer to Section
6.2.2)
(3) Cam data capacity
The size of the created cam data is shown below for the cam storage area/cam
open area.
Operation method
Data method/
Auto-generation type
Cam storage area
(262144 bytes)
Cam open area
(1048576 bytes)
Stroke ratio data format Cam resolution 4 bytes Cam resolution 4 bytes Create with
MT Developer2
Coordinate data format Coordinate number 8 bytes Coordinate number 8 bytes
Stroke ratio data format Cam resolution 4 bytes Cam resolution 4 bytes Create in cam storage area
with Motion SFC program
Coordinate data format Coordinate number 8 bytes Coordinate number 8 bytes
Stroke ratio data format Cam resolution 4 bytes Create in cam open area with
Motion SFC program
Coordinate data format
0 byte
Coordinate number 8 bytes
Create with cam auto-
generation in Motion SFC
program
For a rotary cutter 36 bytes Cam resolution 4 bytes
When writing with the Motion SFC program or when the cam auto-generation
function is executed, the writing area free capacity size may decrease since the
size changes depending on the cam resolution change, etc. In this case, write
the cam data with MT Developer2 or delete them once.
(4) Delete method of cam data
Write the empty data in the cam storage area with MT Developer2 to delete only
cam data.
(5) Password protection for cam data
The cam data can be protected as shown below by password setting.
Registration condition
Cam data operation with
MT Developer2
Cam data operation with
Motion SFC program
Write protection
Cam data cannot be written without
unlocking the password. Writing cam data and cam data auto-
generation is not operated.
Read/write protection
Cam data cannot be read/written
without unlocking the password.
Reading/writing cam data and
generating cam data auto-generation is
not operated.
Refer to the "Q173D(S)CPU/Q172D(S)CPU Motion controller Programming
Manual (COMMON)" for details of the password protection.