Invalid Program Number from Higher-Level Controller

What does PGNO_FAULT mean?

This condition occurs within the KUKA KRC4 KSS 8.3 CELL.SRC program when the robot controller receives a program number from a higher-level controller that is not recognized or defined in the program's CASE statements. It signifies a mismatch in program indexing expectations between the robot and the external master system.

• The higher-level controller transmitted a program number (#EXT_PGNO) that does not correspond to any defined CASE in the CELL.SRC program.
• There is a configuration error or typo in the higher-level controller's program number assignment or transmission.
• The CELL.SRC program is incomplete and lacks a CASE statement for a valid program number that the higher-level controller is attempting to execute.
• Potential communication issues leading to corrupted program number data being received by the robot controller.

Click steps to track your progress.

1. 1

   Verify the program number being sent by the higher-level controller against the CASE statements defined in the KUKA KRC4's CELL.SRC file.

2. 2

   Ensure that all valid program numbers expected from the higher-level controller have corresponding CASE statements in CELL.SRC.

3. 3

   Check the communication interface and data exchange protocol between the higher-level controller and the KUKA robot for any transmission errors or data corruption.

4. 4

   Consult the documentation for the higher-level controller to confirm the correct format and range of program numbers it should send to the robot.

5. 5

   Temporarily modify CELL.SRC to log or display the raw #EXT_PGNO value received when the DEFAULT case is triggered for debugging purposes.