Information to PLC
Tool change
With every programmed T<i> or #TOOL PREP, the CNC communicates the tool number to the PLC during NC program decoding, provided this function is activated in the channel parameter list (P-CHAN-00087).
This advance information can be used by the external tool management system to prepare a tool change (cleaning the tool, turning the disk changer, etc.) to save time.
The following data (CNC_TOOL_ID) is transferred in the request from the CNC to the PLC; the T number is entered in the basic element:
basic | : DINT; |
sister | : DINT; |
variant | : DINT; |
sister_valid | : BOOL; |
variant_valid | : BOOL; |
The PLC must acknowledge receipt by returning the identical message.
