| 摘要 |
PURPOSE:To constitute a monitoring equipment and a programmable controller PC in one body and to perform transmission and reception of their data fast at signal bus levels of both a CPU for the PC and a monitor CPU. CONSTITUTION:The monitor CPU2 sends a temporary stop request signal (e) to the CPU11 for the PC when a request to read the operation state of the PC or write a sequence program, etc., in the PC is made by operating a keyboard 6, and when the CPU11 for the PC stops temporarily, a temporary stop completion signal (f) is supplied from the CPU11 for the PC to a bus switch 9. Consequently, a signal bus D1 for the monitor CPU is connected to a signal bus D2b and the monitor CPU2 performs reading from writing to a control program memory 12, data memory 13, sequence program memory 14, process output interface 15, and process input interface 16. |
