■ Usable instructions
The following table lists the instructions that can be used in transition programs.
Classification
Contact instruction
Association instruction
Comparison operation instruction
Real number instruction
Character string processing
instruction
Creating a dummy transition
condition
*1 The EGP and EGF instructions cannot be used in a transition program created in ST or FBD/LD.
*2 The LDPI, LDFI, ANDPI, ANDFI, ORPI, ORFI, and TRAN instructions cannot be used in a transition program created in MELSAP-L
(instruction format).
Instruction symbol
LD, LDI, AND, ANI, OR, ORI
LDP, LDF, ANDP, ANDF, ORP, ORF
LDPI, LDFI, ANDPI, ANDFI, ORPI, ORFI
ANB, ORB
INV
MEP, MEF
*1
EGP, EGF
LD, LD_U, AND, AND_U, OR, OR_U
LDD, LDD_U, ANDD, ANDD_U, ORD, ORD_U
LDE, ANDE, ORE
LDED, ANDED, ORED
LD$, AND$, OR$
TRAN
*2
8 SFC PROGRAM
115
8.2 Structure
8