S7-300
S7-400
S7-1200
S7-1500
Description LAD/FBD
STL
(not S7-1200)
SCL
✔ ✔
Set daylight saving time/standard time without time-
of-day status
Transfer time-stamped alarms
Set daylight saving time/standard time with time-of-
day status
Compare character strings
Convert character string to numerical value
Convert numerical value to character string
Convert character string to Array of CHAR
Convert Array of CHAR to character string
Determine the length of a character string
Join multiple character strings
Split character array in multiple character strings
Convert ASCII string to hexadecimal number
(conversion is contained in the converting functions,
e.g.: CHAR_TO_WORD)
Convert hexadecimal number to ASCII string