Mitsubishi Electric MELSEC iQ-R RD78G4 - Cam Data Operation Function

3 CAM FUNCTION
3.2 Create Cam Data
85
3
Cam data operation function
This function is used to write/read cam data via buffer memory with the cam operation control data. To operate the points
more than the amount of data for each operation (as follows), the operation should be executed separately.
Cam operation control data
*1 With the exception of positioning control, main cycle processing is executed during the next available time. It changes by status of axis
start.
*2 Cam axis cycle units (Page 123 Units for the output axis)
*3 Cam axis cycle units (Page 123 Units for the output axis)
Cam data format Amount of data for each operation
Stroke ratio data format 4096
Coordinate data format 2048
Setting item Setting details Setting value
(Read operation: Stored value)
Default
value
Buffer memory
address
[Cd.600]
Cam data operation
request
• Set the command for operating cam data.
• After completion of cam data operation, "0" is
automatically stored by the Motion module.
Fetch cycle: Main cycle
*1
■Set in decimal.
1: Read (Cam open area)
2: Write (Cam storage area)
3: Write (Cam open area)
0 45000
[Cd.601]
Operation cam No.
• Set the operating cam No.
Fetch cycle: At request (Cam data operation request)
■Set in decimal.
1 to 256
0 45001
[Cd.602]
Cam data first
position
• Set the first position for the operating cam data.
Fetch cycle: At request (Cam data operation request)
■Set in decimal.
• Stroke ratio data format: 1 to cam
resolution
• Coordinate data format: 0 to
(coordinate number -1)
0 45002
[Cd.603]
Number of cam data
operation points
• Set the number of operating cam data points.
Fetch cycle: At request (Cam data operation request)
■Set in decimal.
• Stroke ratio data format: 1 to 4096
• Coordinate data format: 1 to 2048
0 45003
[Cd.604]
Cam data format
• Write operation: Set cam data format.
Fetch cycle: At request (Cam data operation request)
• Read operation: The cam data format is stored.
Refresh cycle: At completion of the condition
(Completion of cam data operation)
■Set in decimal.
1: Stroke ratio data format
2: Coordinate data format
0 45004
[Cd.605]
Cam resolution/
coordinate number
• Write operation: Set the cam resolution/the coordinate
number.
Fetch cycle: At request (Cam data operation request)
• Read operation: The cam resolution/the coordinate
number is stored.
Refresh cycle: At completion of the condition
(Completion of cam data operation)
■Set in decimal.
• Stroke ratio data format: 256/512/
1024/2048/4096/8192/16384/32768
• Coordinate data format: 2 to 16384
0 45005
[Cd.606]
Cam data starting
point
• Write operation: Set the cam data starting point.
Fetch cycle: At request (Cam data operation request)
• Read operation: The cam data starting point is stored.
Refresh cycle: At completion of the condition
(Completion of cam data operation)
• Setting is not required with coordinate data format.
■Set in decimal.
• Stroke ratio data format: 0 to (Cam
resolution - 1)
• Coordinate data format: Setting not
required
0 45006
[Cd.607]
Cam data value
• Write operation: Set the cam data corresponding to the
cam data format.
Fetch cycle: At request (Cam data operation request)
• Read operation: The cam data is stored.
Refresh cycle: At completion of the condition
(Completion of cam data operation)
■Set in decimal.
• Stroke ratio data format
-2147483648 to 2147483647[  10
-7
%]
• Coordinate data format
Input value: 0 to 2147483647
[Cam axis cycle units
*2
]
Output value: -2147483648 to
2147483647
[Output axis position units
*3
]
0 45008 to 53199