Mitsubishi Electric MELSEC iQ-R RD78G4 User Manual page 85

1) Operation with an engineering tool
Engineering tool
*1 The operation from the engineering tool is executed toward cam storage area.
*2 Writing to cam open area is transmitted in the following timing.
- Power supply turn ON
- Write to cam storage area
- PLC READY [Y0] OFF to ON
*3 Data in the cam storage area is cleared when the power supply is turned ON again or reset.
2) Operation with buffer memory
Buffer memory
[Cd.608]
Cam auto-
Auto-generation data
*1
Write
generation
request
Read/
*1
Verify
[Cd.600]
Cam data
operation request
(2: Write)
[Cd.600]
Cam data
operation request
(2: Write)
Coordinate data
Cam storage area
Motion module
Coordinate data
Stroke ratio
data
Auto-generation data
• Rotary cutter
• Rotary cutter
[Cd.608]
Cam auto-
generation
request
Stroke ratio
data
[Cd.600] Cam data operation
request (1: Read)
[Cd.600] Cam data operation
request (1: Read)
[Cd.600]
Cam data
operation
request
(3: Write)
Stroke ratio
data
[Cd.600]
*2
Cam data
operation
request
(3: Write)
Coordinate data
*2
Cam open area
*3
(1024k bytes)
Cam control
3 CAM FUNCTION
3.2 Create Cam Data
3
83