Mitsubishi Electric MELSEC FX Series - Page 225

7 Applied Instructions
7.4 Rotation and Shift Operation
223
FXCPU Structured Programming Manual
(Basic & Applied Instruction)
1
Outline
2
Instruction List
3
Configuration of Instruction
4
How to Read Explanation of Instructions
5
Basic Instruction
6
Step Ladder Instructions
7
Applied Instructions
8
Interrupt Function and Pulse Catch Function
A
Relationships between devices and addresses
Program examples(Conditional stepping of 1-bit data)
By setting X000 to X007 to ON in turn, Y000 to Y007 are activated in turn.
If the order is wrong, activation is disabled.
X000
S 0
M8046
S 1
S 7
M8000
X000
M8046
X001
X002
X000
Head data
Data input
(S7 to S0) → (Y007 to Y000)
Bit 1 of M0 is regarded as the head input,
and 8-bit shift register is constructed by S0 to S7.
Even if X000 is set to ON, Y000 is not activated.
X000
X001
X007
Y001
Y007
Y000
*1
*1:By using a state relay (S), the state under operation
can be monitored by the dynamic monitoring function of
the state relay.
STL monitor is valid.
SFTL
EN
s
n1
ENO
d
n2
M0
S0
K8
K1
MOV
EN
s
ENO
d
K2S0
K2Y000
M0
M8047
[Structured ladder]
[ ST ]
M0:= X000 AND NOT M8046;
SFTL((NOT M8046 AND X000) OR (S0 AND X001) ··· OR (S1 AND X002) R(S7 AND X000), M0, K8, K1, S0);
MOV(M8000, K2S0, K2Y000);
M8047:= M8000;