PROGRAMMABLE CONTROLLER

• Main Author: OTANI SHUJI
• Format: Patent
• Language: English
• Published: 18.01.2002
• Edition: 7
• Subjects: CALCULATING; COMPUTING; CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING

PROBLEM TO BE SOLVED: To hold a user program for a long period in a power-off state and to make the execution speed fast. SOLUTION: A source program and held variables are stored in a low-speed RAM which is backed up by a battery and an object program and unheld variables are stored in a high-speed...