| 摘要 |
User programs composed of modules for use in automation systems may be created in a cyclic programming process. When solutions are created for complex automation tasks, there is a danger that during the execution of program sequences, individual operands can assume unexpected values in an unforeseen manner, causing error responses in the automation system. The method and programming tool allow data breakpoints to be set up within program logic that in particular has been graphically programmed, in the event of an occurrence of specific conditions. These data breakpoints are set up using a marker in an operand table, which contains selected operands coupled with the type and/or scope of the respective access operation, and using the unique definition of a specific access operation, (achieved by the marker), as a condition for the occurrence of the desired program interruption.
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