An Interesting Proposal

Here is a proposal that may be of interest to some:

IEC 61131-X: Programmable Controllers Part X: Functional Safety

http://www.nist.gov/sc4/liaisons/SB3/NP65B-61131-X.pdf
Bill Mostia

William(Bill) L. Mostia, Jr. PE
Independent I &E Consultant
WLM Engineering Co.
P.O. Box 1129
Kemah, TX 77565
[email protected]
281-334-3169