The objective is to move the machine table to a defined X/Y position before every tool call. The available evidence identifies the tool-call macro location only for the iTNC530; it does not confirm where, or whether, the equivalent macro is accessible on a TNC430.
Confirmed Macro Location and Open Question
| Control | Supported finding | Engineering decision |
|---|---|---|
| iTNC530 | The reported navigation path is PLC-Edit → NC_MACRO → TOOLCALL. |
Review the existing TOOLCALL logic before making any change. |
| TNC430 | The equivalent location is not identified by the evidence. | Do not assume that the iTNC530 path or macro structure applies; obtain the control-specific information from the machine manufacturer or qualified personnel. |
Required Behavior
The proposed change would place the recurring X/Y positioning command in the tool-call macro instead of inserting an X/Y block before every tool call in every NC program. Before implementation, define the required table position and determine exactly which tool-related events invoke the macro.
Execution Risk and Change Procedure
A tool index change during machining may also execute the modified tool-call macro. An unconditional table move could therefore occur at an unintended point in the machining sequence.
- Back up and inspect the existing control and machine-specific macro configuration.
- For an iTNC530, locate the logic through
PLC-Edit → NC_MACRO → TOOLCALL. For a TNC430, obtain the correct access method before editing. - Identify every event that can invoke the macro, including a tool index change during machining.
- Have the machine manufacturer or other qualified personnel implement or review the modification.
- Test all relevant tool-call and tool-index paths under controlled conditions before releasing the change for production.
Verification Criteria
Verify that the table moves to the intended X/Y position for each required tool call. Also verify that a tool index change does not trigger an unsafe or unwanted move. Do not consider the modification complete until both the intended sequence and the identified alternate trigger have been tested.
FAQ
Where is the TOOLCALL macro on an iTNC530?
The reported path is PLC-Edit → NC_MACRO → TOOLCALL.
Is the iTNC530 TOOLCALL path valid for a TNC430?
The evidence does not confirm that. Obtain the TNC430-specific macro location and editing procedure from the machine manufacturer or qualified personnel.
Why must a modified tool-call macro be tested with tool index changes?
A tool index change during machining may invoke the macro. Test that condition to ensure the added X/Y table move cannot execute unexpectedly.