 AUTOMATION  PLC  SCADA  INSTRUMENTATION  DRIVES & MOTORS

Making products under the control of computers and programmable controllers. Manufacturing assembly lines as well as stand-alone machine and robotic devices fall into this category. Automation is delegation of human control functions to technical equipment.

Productivity QualityLabour Cost Plant Total Automation Manufacturing Competitiveness Solution Automation applied to plant Time

INDUSTRIAL AUTOMATION COMPONENTS COMPONENTS AUTOMATION PLC Programmable Logic Control (Hardware + Software) SCADA Supervisory Control & Data Acquisition (SOFTWARE) FIELD INSTRUMENTS

Automation : Typical installation... Automation : Typical installation.... Junction Box Field Cabling SCADA Software Communication Cable Field Cabling

AUTOMATION  PLC  SCADA  INSTRUMENTATION  DRIVES & MOTORS

A PLC is a solid state / industrial computer that performs discrete or sequential logic in a factory environment. The PLC is programmed interface between the field input elements like limit switches, sensors, push button and the final control elements like actuator, solenoid/control valves, drives, hooters etc. PLC consist of : Input Module CPU with Processor and Program memory Output module Bus System Power Supply

Programming/ Communication Device Central Processing Unit (CPU) Input Circuits Output Circuits Memory program Data Power supply Optical isolation PLC system

CPU Power Supply I/O Modules

11 Historical Background The Hydramatic Division of the General Motors Corporation specified the design criteria for the first programmable controller in 1968 Their primary goal - To eliminate the high costs associated with inflexible, relay- controlled systems.

Programmable Controller Development Programmable concept developed Hardware CPU controller, with logic instructions, 1 K of memory and 128 I/O points Use of several (multi) processors within a PLC - timers and counters; arithmetic operations; 12 K of memory and 1024 I/O points Remote input/output systems introduced Microprocessors - based PLC introduced

Cost effective for controlling complex systems. Flexible and can be reapplied to control other systems quickly and easily. Computational abilities allow more sophisticated control. Trouble shooting aids make programming easier and reduce downtime. Reliable components make these likely to operate for years before failure. ADVANTAGES

Too much work required in connecting wires. Difficulty with changes or replacements. Difficulty in finding errors; requiring skillful work force. DISADVANTAGES