Communication Between Manager And Plc - Fagor CNC 8060 Installation Manual

7.3
7.
CNC 8060
CNC 8065
(R : 1709)
EF
·454·

Communication between manager and PLC.

For the communication between the tool manager and the PLC, each channel and magazine
has its own group of marks and registers.
i
The CNC maintains compatibility with the marks and registers of previous versions whose mnemonics
do not refer to any particular channel or magazine. From software version V2.00 on, these signals refer
to the first channel or magazine accordingly.
The communication between the manager and the PLC takes place in two stages; when
executing the T function and when executing the M06 function.
• When executing the T function, the CNC lets the tool manager know about it.
The tool manager sends a command to the PLC to select the next tool in the magazine
(if possible).
The CNC continues with the execution of the program without waiting for the tool
manager to complete the operation.
• When executing the M06 function, its associated subroutine is called upon. The M06
function must also be programmed inside that subroutine so the CNC "tells" the tool
manager to start making the tool change.
The tool manager sends a command to the PLC to make the change.
The CNC waits for the tool manager to complete the operation before continuing with
the execution of the program.
Considerations and recommendations.
The management of the tool change should be included in the subroutine associated with
the M06 and leave the control of the external devices up to the PLC.
Use the auxiliary functions to govern the various devices (magazine rotation, magazine
movement, tool changer arm, etc.) from the M06 subroutine.
On asynchronous magazines (changer arm with independent movements) when the change
implies leaving a tool in the magazine, the TCHANGEOK mark may be activated so the CNC
goes on executing the program while the tool is being taken to the magazine.
I n s ta ll a t io n ma n u a l.