PLC
Archive of contributed PLC programming examples
PLC Open
vendor independent organization promoting the IEC 1131-3 software standard
for PLCs
PLC Training Downloads
PDFs covering PLC basics; supplements to Industrial Text & Video
Co.'s training videos
PLC based
control system textbook Hugh Jack's manuscript for a PLC based
control system textbook, currently used for teaching an undergraduate
controls course. The course and book focus on the Allen Bradley family of
controllers. Available for noncommercial use
PLC Vendors:
Allen-Bradley (Rockwell Automation) PLCs, Brands that
include Rockwell
B&R
Industrial Automation worldwide SCADA and PLC supplier
GE-Fanuc
PLCs and SCADA software
Groupe
Schneider Now known as Schneider Electric. Their controls are
focused on PLCs. brands including Modicon, Square-D, Merlin-Gerin and
Telemecanique.
Mitsubishi Electric
Omron
is well known for it lines of PLCs including the C-Series, CS1 and CJ1.
Toshiba's
Automation Division has a variety of PLCs and distributed control
system capabilities. Their control families include: the EX-Series, the
T-Series, the V-Series and TOSDIC.




