XIC ( Examine ON): Examine a bit for an ON condition.
XIO (Examine OFF): Examine a bit for OFF condition.
OTE (Output energize): Turn ON a bit ( non retentive)
OTL (Output latch): Latch a bit (retentive)
OTU (output unlatch): Unlatch a bit (retentive)
TOFF ( timer off delay): Turn an output ON/OFF after its rung has been OFF a preset time interval.
TON (timer on delay): Turn an output ON/OFF after its rung has been ON a preset time interval.
CTD ( Count down ): Use a software counter to count down from special value.
CTU (Count up): Use a software counter to count up to a specified value.