Module 1 Lecture Outline: Introduction to Automation Signal Control
- The technology triangle: How technology has developed over the years.
- Mechanical and electrical devices: relays, switches, pneumatic switches, etc
- Solid State devices such as OP Amplifiers
- Solid State AC switching devices
- These first 3 levels used such devices as “push buttons”, magnetic devices and controllers. Use of transistors, and operational amps
- Sensors become discrete and digital
- Solid state devices
- Motor controls become more solid state devices
- PLC.s
- Data management of all devices and equipment
- How information is transmitted
- The development of Industrial Control
- Hardware and software programs that are used in industry today
- Manual Motor and Motor Controls
- Simple switches
- Simple relays
- Logic circuits
- Electronically Controlled Machines
- Communication:
- LANS
- WANS
- WIRELESS
- ETHERNET NETIP
- Control Software
- Machine control software
- Cell and process control software
- HMI software
- PCLs
- Input Devices: sensors and vision devices
- Contact devices such as limit switches and manual switches
- Non-Contact devices such as Sensors and Vision Devices
- Discrete Devices such as proximity devices, photoelectric devices and Hall Effects
- Analog devices such as temperature, pressure, level, flow and position
- Robotics
- Manufacturing Classifications:
- Project
- One of a kind
- Example: building refineries and plants
- Equipment moved to the site and it’s a project until product is produced when plant is finished
- Job-Shop
- Parts are routed between work cells
- Not using machines
- Low productivity when creating parts
- Repetitive
- Repeat orders
- Large quantities
- Manual labor plus machines
- Examples: car parts like water pumps, engines, transmissions
- Line
- Short time delivery
- Many options and models
- Inventory of sub assembly parts
- Continuous
- Manufacturing of products is never interrupted such as making and packaging cereal or producing soft drinks