Cam Auto-Generation Function - Mitsubishi Electric MELSEC iQ-R Series User Manual

Cam auto-generation function

The cam auto-generation function is used to generate cam data automatically for specific purposes based on parameter
settings.
With this function, cam data is generated in the cam open area.
It is possible to generate up to 1 Mbyte [RD77MS] or 16 Mbyte [RD77GF] including the regular cam data. (Example: 256 cam
data (with the stroke ratio format, resolution is 1024) [RD77MS] or 1024 cam data (with the stroke ratio format, resolution is
4096) [RD77GF] can be automatically generated.)
The processing time of cam auto-generation takes longer if the data point is larger. Also, the real processing time changes by
status of axis start etc.
(Reference) Relationship between the cam resolution and processing time in the cam auto-generation (Stroke ratio data
format)
[RD77MS]
Operation cycle
0.444
0.888
1.777
[RD77GF]
Operation cycle
0.50
1.00
2.00
4.00
Cam operation control data
Setting item
[Cd.608]
Cam auto-generation
request
[Cd.609]
Cam auto-generation
cam No.
[Cd.610]
Cam auto-generation
type
[Cd.611]
Cam auto-generation
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.
3 CAM FUNCTION
80
3.2 Create Cam Data
Maximum number of
control axes
For 2 axes
For 4 axes
For 16 axes
Maximum number of
control axes
For 2 axes
For 4 axes
For 16 axes
For 32 axes
Setting details
• Set the request for cam auto-generation.
• The Simple Motion module resets the value to "0"
automatically after completion of the cam auto-
generation.
*1
Fetch cycle: Main cycle
• Set the cam No. to be generated automatically.
Fetch cycle: At request (Cam auto-generation request)
• Set the type of cam auto-generation.
Fetch cycle: At request (Cam auto-generation request)
• Set the parameters for each type of cam auto-
generation.
Fetch cycle: At request (Cam auto-generation request)
256 4096
825 [s] 10248 [s]
746 [s] 8929 [s]
1379 [s] 12533 [s]
256 4096
40548 [s] 51841 [s]
38895 [s] 47308 [s]
40958 [s] 47471 [s]
42533 [s] 51289 [s]
Setting value
■Set in decimal.
1: Cam auto-generation request
2: Cam auto-generation request
(without writing to storage area)
[RD77GF]
■Set in decimal.
1 to 256 [RD77MS]
1 to 1024 [RD77GF]
■Set in decimal.
1: Cam for rotary cutter
[RD77MS]
2: Cam for rotary cutter (central
reference) [RD77GF]
3: Easy stroke ratio cam
[RD77GF]
4: Advanced stroke ratio cam
[RD77GF]
(Page 82 [Cd.611] Cam auto-
generation data)
32768
75898 [s]
65950 [s]
95997 [s]
32768
137464 [s]
113119 [s]
105217 [s]
107538 [s]
Default Buffer memory
value address
0 53200 [RD77MS]
862200 [RD77GF]
0 53201 [RD77MS]
862201 [RD77GF]
0 53202 [RD77MS]
862202 [RD77GF]
0 53204 to 53779
[RD77MS]
862204 to 866295
[RD77GF]