| 摘要 |
PURPOSE:To execute exactly monitoring, by analyzing an applied instruction in a user program, so that a character-string of its contents and an instruction number can be displayed. CONSTITUTION:Display of a user program of a monitor device M is executed when an instruction for inputting or reading out the user program is executed from a keyboard 4. A CPU1 analyzes an applied instruction in a user program which is inputted from the keyboard 4 or is read out from an RAM3 by use of an instructon analyzing program area 21 and an instruction content character- string generating part 22 in a CPU controlling ROM2, and displays its instruction number and a character-string showing the contents, on an indicator 5. The monitor device M is connected to a sequence controller SC, can execute transfer of a program and operation monitoring, and also is connected to a printer which is not shown in the figure, and can print a ladder drawing, etc. |
