| 摘要 |
A programmable logic controller with personal computerized ladder diagram having a keyboard, a monitor, a magnetic disk unit, a printer, the output and input terminals, an interface card of temporary storage data display, a magnetic disk control card, an input/output communication interface, a printer driving interface, an input/output process control card of a latch register, a CPU, a RAM-1, a RAM-2, a ROM, a ladder diagram editing module, a ladder program translation module, an instruction algorithm control module and a hardware setting integrated module. The processes include reading an executing instruction, setting an address for a control card, initiating an output/input model, storing control parameters, operating a ladder control operation with an editor, pre-storing data of the ladder control operation, proceeding a ladder control design, storing a ladder diagram program in the RAM-2 through an element editing program, storing the ladder diagram program, and printing the ladder diagram program are established.
|
