PROGRAMMED LOGICAL CONTROLLER Russian patent published in 1998 - IPC

FIELD: program control equipment, automatic control systems using computers. SUBSTANCE: device has microprocessor, local bus, two-port static memory unit, VME and ISA bus interfaces, read-only memory unit, electronically programmed read-only memory unit, real-time clock, keyboard controller, system controller, universal programmed guarding timer, RS232 and RS485 serial interfaces, peripheral bus. Controller has interface of sub-units. Some elements of controller are connected by means of buffer address amplifiers and data input- output units. EFFECT: increased reliability. 2 dwg