| 摘要 |
PURPOSE:To judge the quality of a program and also to find a fault easily by performing time-division (dynamic) display of data in the input-output data memory part and internal data memory part of a sequential controller controlled by the program. CONSTITUTION:By read-out signal (a) from program read part 2, sequence instruction b-1 in program memory part 1 and input data C1 from input data memory part 4 are read out and in the same way, output data c2 from output data memory part 5 and internal data c3 from internal data memory part 6 are read out and sent to arithmetic part 3, where arithmetic is performed by instruction (b), thereby storing the result in memory parts 4 to 6. Next, transmission part 7 sends the signal of input circuit 8 and that of memory part 5 to memory part 4 and output circuit 9 respectively and when data selection part 10 is in an internal data display state, data c3 of internal data memory part 6 is written to display memory part 11 and then displayed on display part 14 in a time-division mode under the control of display driving part 13. |
