Controladores logicos programables

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CONTROLADORES LOGICOS PROGRAMABLES

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Qué es un PLC
CONTROLADOR
PROGRAMABLE
(Gp:) INPUTS

Programmable logic controllers, also called programmable controllers or PLCs, are solid-state members of the computer family, using integrated circuits instead of electromechanical devices to implement control functions.They are capable of storing instructions, such as sequencing, timing, counting, arithmetic, data manipulation, and communication, to control industrial machines and processes
OUTPUTS
(Gp:) CR

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ELEMENTOS DE ENTRADA DIGITALES
Pulsantes
Switches Selectores
Sensores de Posición
Sensores de Nivel
Sensores Fotoeléctricos
Sensores de Proximidad
Contactos Auxiliares de contactores
Contactos de Relé
Thumbwheel Switches
120 VAC
240 VAC
24 VAC/VDC
TTL

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ELEMENTOS DE SALIDA
Electro válvulas
Contactores para motores
Solenoides
Relés de Control
Alarmas
Displays
Salidas Digitales:
Relés
120 VAC/VDC
240 VAC/VDC
24 VAC/VDC

Triacs
120 VAC

Transistores
24 VDC

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PRINCIPIO DE OPERACIÓN
A programmable controller, consists of two basic sections:
• the central processing unit
• the input/output interface system
The central processing unit (CPU) governs all PLC activities. The following three components form the CPU:
• the processor
• the memory system
• the system power supply

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CR
Aisla-
miento
Aisla-
miento
Dentro de un PLC
PROCESADOR
CENTRAL
MEMORIA
programa
datos
Alto
Voltaje
Alto
Voltaje
Bajo Voltaje
AC Power Supply
85-264 VAC, 50/60Hz
Circuits
DC Power Supply

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COMUNICACIONES
Input
Circuits
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