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Automatic Operation (Synchronous Control)
12.6.4 Rewriting Cam Patterns by Programs
The editing function by the programs of cam patterns is a function to execute the change of
cam patterns by user programs.
Procedure of editing cam patterns
The edit of cam patterns is executed by two operations, which are "Reading cam tables" and
"Rewriting cam tables". These operations are performed using a "Cam pattern editing area" in
the positioning memory.
(1) Procedure of changing a cam patter that has been set
Read a cam table in the cam pattern editing area.
○
1
Change the parameter of the cam table read in the cam pattern editing area.
○
2
Execute rewriting the cam table.
○
3
（2） Procedure of creating a new cam pattern
Write parameters of created cam pattern data in the cam pattern editing area.
○
1
Execute rewriting the cam pattern data.
○
2
User program
Execution conditions of editing cam patterns
The execution conditions for editing cam patterns are as follows.
• The synchronous control is not performed on all axes.
• All axes are not activated.
• Parameters are set correctly.
Also, when request for reading and rewriting are executed simultaneously, reading takes
priority. In this case, the execution of the request for rewriting results in an abnormal end
(response code: FF21H).
12-32
Changing parameters
Rewriting cam tables
●Cam pattern editing area
Cam pattern edit no.
Number of set sections
Shift amount
Start phase for sections 1 to n
Displacement
Cam curve no.
Internal cam pattern data
No.n
No.3
No.2
No.1
Reading cam tables
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