Mitsubishi Electronics FX3G User Manual
324
FX
3S
/FX
3G
/FX
3GC
/FX
3U
/FX
3UC
Series
Programming Manual - Basic & Applied Instruction Edition
12 Data Operation – FNC 40 to FNC 49
12.3 FNC 42 – ENCO / Encode
2) When
is a word device (1
≤ n ≤ 4)
ON bit positions among "2
n
" bits (1
≤ n ≤ 4) from a device specified in
are encoded to
.
-The encoding result of
is "0" (OFF) from the most significant bit to the low-order bit "n".
Cautions
1. When two or more bits are ON in the
data
The low-order side is ignored, and only the ON position on the high-order side is encoded.
2. While the command input is OFF
The instruction is not executed. Activated encode outputs are latched in the previous ON/OFF status.
D
1
S
D
1
S
D
1
D
D
1
D
Command
input
FNC 42
ENCO
n
S
D
When it is T, C, D, R, U \G , V or Z
(1
≤ n ≤ 4)
0
0
0
1
0
0
0
0
1
0
1
0
1
0
1
0
b15
All of these bits are 0.
b0
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
b15
(1)
(2)
4
b0
0
1
2
(3)
4
5
6
7
Ignored
S
D
2
n
= 8 (When "n" is 3)
D0
D2
D
1
S