Siemens SIMATIC S7-300 Series Reference Manual page 169

List of Abbreviations
Abbrevia-
tions
STL Statement List (programming language representation in STEP 7)
CP Communication processor
CPU Central processing unit
DB Data block
FB Function block
FC Function
FM Function module
GD Global data communication
IM Interface module
IP Intelligent I/O
LAD Ladder logic (programming language representation in STEP 7)
FO Fiber-optic cable
M Chassis ground
MPI Multipoint Interface
OB Organization block
OP Operator panel
PIO Output process image
PII Input process image
PG Programming device
PS Power supply
SFB System function block
SFC System function
SM Signal module
PLC S7-300, CPU Specifications CPU 312 IFM to CPU 318-2 DP
A5E00111190-01
Description
C
C-1