Mitsubishi Electric MELSEC-Q/L - Page 388

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7 APPLICATION INSTRUCTIONS
7.2 Rotation Instructions
Program example
• The following program rotates the contents of D0, not including the carry flag, 3 bits to the left when XC is turned ON.
• The following program rotates the contents of D0, including the carry flag, 3 bits to the left when XC is turned ON.
[Ladder Mode] [List Mode]
[Operation]
[Ladder Mode] [List Mode]
[Operation]
Step Instruction Device
000000000000
111
1
1 000000000000
1
1
b15 b8 b0b7
b0b7b15
b8
0
1
b14b13 b12b11b10 b9 b6 b5 b4 b3 b2 b1
b14b13 b12b11b10 b9 b6 b5 b4 b3 b2 b1
Carry flag
(SM700)
Carry flag
(SM700)
Contents of b15 to b13
before execution
Contents of b11 to b0
before execution
Content of b12
before execution
Content of b13
before execution
D0
D0
1
Step Instruction Device
000000000000
111
1
1 000000000000
1
b15 b8 b0
b7
b0
b7
b15
b8
1
*
b14
b13
b12b11
b10 b9 b6
b5 b4
b3
b2 b1
b14b13 b12b11b10 b9 b6
b5
b4 b3 b2 b1
Carry flag
(SM700)
Carry flag
(SM700)
Contents of b15 and b14
before execution
Contents of b11 to b0
before execution
Content of b12
before execution
Content of b13
before execution
Content of carry flag SM700
D0
D0
1
* ON/OFF status of the carry flag depends on its status before the execution of RCL.
*