FATEK FBs-CB5 - Page 196

Advanced Function Instruction
7-32
FUN56 D P
G→B
GRAY - CODE TO BINARY - CODE CONVERSION
FUN56 D P
G→B
S ：Starting of source
D ：Starting address of destination
S，D operand can combine V、Z、P0~P9 for index addressing
WX WY WM WS TMR CTR HR IR OR SR ROR DR K XR
Range
Ope-
rand
WX0
∣
WX240
WY0
∣
WY240
WM0
∣
WM1896
WS0
∣
WS984
T0
∣
T255
C0
∣
C255
R0
∣
R3839
R3840
∣
R3903
R3904
∣
R3967
R3968
∣
R4167
R5000
∣
R8071
D0
∣
D4095
0~FFFFH
0~FFFFFFFFH
V、Z
P0~P9
S ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○ ○
D ○ ○ ○ ○ ○* ○ ○
● When operation control "EN"=1 or "EN↑"( P instruction) changes from 0→1, it will perform the code conversion; where S
is the source (Gray code), and D is the destination (Binary code) for storing the result.
● The conversion method shown as below :
Example 1: When M0 changes from 0→1, it will perform the 16-bit code conversion
M0
EN
S :
D :
D100
D0
56P.G B
˙ Converting the 16-bit Gray-code in D0 into
Binary-code, and then storing the result into D100.
D0＝ 1001010101010011B Î D100＝ 1110011001100010B