elecronics engineeers
You can find plenty of free literature from Rockwell Automation's literature library
Literature Library
Also, here is a great ebook on automatated manufacturing systems,
(programmable logic controllers) PLCs.
contains:
Chapters
* Cover Page
* Programmable Logic Controllers
* PLC Hardware
* Logical Sensors
* Logical Actuators
* Boolean Logic Design
* Karnaugh Maps
* PLC Operation
* Timers, Counters and More
* Structured Logic Design
* Flowchart Based Design
* State Based Design
* Numbers and Data
* PLC Memory
* Ladder Logic Functions
* Advanced Ladder Logic Functions
* Open Controllers
* Instruction List Programming
* Structured Text Programming
* Sequential Function Charts
* Function Block Programming
* Analog Inputs and Outputs
* Continuous Sensors
* Continuous Actuators
* Continuous Control
* Fuzzy Logic
* Serial Communication
* Networking Communication
* Internet
* Human Machine Interfaces (HMI)
* Electrical Design
* Software Design
* Selecting a PLC
* Appendix - Function References
* Appendix - Glossary
* Appendix - References
* GFDL
MODERATOR ACTION: Book deleted. It is available here:
**broken link removed**