IEC-61131 Name Standard

IEC-61131 Name Standard
(The names are composed per IEC-61131, section 2.1.2.)
An identifier is a string of letters, digits, and underline characters that begin with a letter or underline character. Underlines are significant in identifiers (for example, A_BCD is interpreted differently than AB_CD). Multiple leading or multiple (consecutive) embedded underlines are not allowed, trailing underlines are not allowed, and letter case is not considered significant.
NOTE: In
Logix Designer
, most component names are limited in length to 40 characters or less.
Tip:
Provide Feedback
Have questions or feedback about this documentation? Please submit your feedback here.