Create Cam Data; Memory Configuration Of Cam Data - Mitsubishi Electric Q173DSCPU Programming Manual

6 CAM FUNCTION

6.2 Create Cam Data

6.2.1 Memory configuration of cam data

Memory
Storage item
configuration
Cam data
Cam storage
area
Cam auto-
generation
data
Cam open area Cam data
Write (Cam storage area)
/Cam auto-generation
1) Operation with MT Developer2
Cam data is arranged in the following 2 areas.
Data is written by the following operations.
• Write with MT Developer2
• When executing cam data write (Cam storage area) instruction of Motion
SFC program.
Data is written when the cam auto-generation instruction of Motion SFC
program is executed. (Cam auto-generation function)
• Cam data is transmitted from the cam storage area, when turning the
Multiple CPU system power supply ON, writing to the cam storage area,
or turning the PLC READY flag (M2000) OFF to ON.
• Writing to the cam open area is possible through the cam data operation
function.
• Cam data that is generated by the cam auto-generation function is stored.
Previously written cam data can be used after turning the power supply OFF by writing
data in the cam storage area. Cam data should be written in the cam storage area for
normal use.
It is possible to write the cam data to the cam open area via the device specified by
Motion SFC program when registering cam data that exceeds the memory capacity in
the cam storage area, etc.
Writing must be executed to the cam open area due to transmitting from the cam
storage area when turning the Multiple CPU system power supply ON again, updating
the cam storage area, or turning the PLC flag (M2000) OFF to ON.
Write (Note-1)
MT Developer2
Read/
Verify (Note-1)
(Note-1): Write/read/verify from MT Developer2 is executed toward cam storage area.
(Note-2): The directly writing in cam open area is not transmitted to cam storage area.
Details
2) Operation with Motion SFC program
Optional device
Write (CAMWR instruction)
/Cam auto-generation
(CAMMK instruction)
Cam storage area
(256k bytes)
Transmit in the following timing.
Multiple CPU system power
supply turn ON
Write to cam storage area
PLC READY flag (M2000)
OFF to ON
The data in cam open area will be returned as cam storage area such as the
Multiple CPU system power supply ON again.
6 - 8
Remark
• Data is preserved even
when turning the power
supply OFF.
• Data is lost when turning
the power supply OFF.
• The cam data that is
used in cam control is
stored.
Read
(CAMRD instruction)
Write
(CAMWR2 instruction)
(Note-2)
Cam open area
(1024k bytes)
Cam control