Appendix: Symbols
The following are the main symbols encountered.
Ladder programs
Function blocks
Commonly encountered blocks:
BOOL is Boolean signal, INT is integer, REAL is a floating point number, ANY is any form of signal
Logic gates
Sequential ...
Get Programmable Logic Controllers, 4th Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
