| 摘要 |
PURPOSE:To simplify the monitoring while a program is being executed, by adding an individual identification number to each interlock instruction in a user program memory and then displaying the identification number of a monitor subject program and the state of execution. CONSTITUTION:An individual identification number is added to each interlock instruction in a user program memory 1 and then stored in the memory 1. The external signal applied to an input/output circuit 2 is stored in an input/output memory 3. A CPU4 executes each instruction of the memory 1 on the basis of a system program stored in an ROM5. The result of this execution is stored in a memory 3 and then delivered through the circuit 2. A state data showing the success of the executing conditions between the identification number and its instruction is stored in an RAM6 when an interlock instruction is executed. This state data is kept in the RAM6 until an interlock end instruction is executed. When a program held between the interlock instructions is monitored, the control data on the user instruction, the identification number and the state data are transferred to a program console 7 and then displayed at a display 7A. |
