Allen-Bradley Micro800 General Instructions Manual page 612

Chapter 22
String manipulation instructions
612
Structured text
(* ST Equivalence: *)
complete_string := RIGHT ('12345678', 4), LEFT ('12345678', 4),5;
(* complete_string is '56781234'
the value issued from RIGHT call is '5678'
the value issued from LEFT call is '1234'
*)
Results
Rockwell Automation Publication 2080-RM001D-EN-E - February 2015