TY  - BOOK
AU  - Dunning, Gary.
TI  - Introduction to programmable logic controllers
SN  - 0766817687
U1  - 629.89 
PY  - 2002///
CY  - Bangalore
PB  - Eastern Press
KW  - PLC instructions
KW  - Timer and counter instructions
KW  - Comparison and data handling instructions
ER  -