Chapter 6 FBD Block  Diagram Programming    133 
FBD Instructions 
 Input Output coil Range 
Input I  12 (I01~I0C) 
Keypad input  Z    4 (Z01~Z04) 
Expansion input  X    12 (X01~X0C) 
Output Q Q 8 (Q01~Q08) 
Expansion output  Y  Y  12 (Y01~Y0C) 
Auxiliary coil  M  M  63(M01~M3F) 
Auxiliary coil  N  N  63(N01~N3F) 
HMI  H 31 (H01~H1F) 
PWM  P 2 (P01~P02) 
SHIFT  S 1 (S01) 
I/O LINK    L  8 (L01~L08) 
Logic/Function Block  B  B  260 (B001~B260) 
Normal ON  Hi     
Normal OFF  Lo     
No connection  Nop     
Analog input  A    8 (A01~A08) 
Analog input parameter  V    8 (V01~V08) 
Analog output    AQ  4(AQ01~AQ04) 
Analog temperature input  AT    4(AT01~AT04) 
 
FBD program can only be edited and modified in the SG2 Client software and write to SG2 controlled equipments 
via communication cable. Via controlled equipment, FBD program is available for querying or the parameter of the 
function block of the program for modifying. The preset value of Block could be a constant or other block code. That 
means the preset value of this block is other block’s current value. 
 
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