Mitsubishi Electric MELSEC iQ-R Series - Page 208

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5 SEQUENCE INSTRUCTIONS
5.4 Shift Instructions
Processing details
■Bit device
• These instructions shift the on/off state of the device area just before the one specified by (d) to the device area specified
by (d). After the data is shifted, the data of the shift source device area is turned off.
Ex.
When the SFTP instruction that specifies M11 is executed, it shifts the on/off state of M10 to M11, and turns off M10.
• Turn on the shift target start device by using the SET instruction.
• When the SFT(P) instruction is used consecutively, program devices in descending order of the device numbers.
■Bit-specified word device
• These instructions shift the 1/0 state of the bit just before the one specified by (d) to the bit specified by (d). After the data is
shifted, the data of the shift source bit is set to 0.
Ex.
The SFT(P) instruction that specifies D0.5 (b5 in D0) is executed, it shifts the 1/0 state of b4 in D0 to b5, and sets b4 to 0.
Operation error
There is no operation error.
(1) X02 ON
(2) After the 1st shift input
(3) After the 2nd shift input
(4) X02 ON
(5) After the 3rd shift input
(6) After the 4th shift input
(7) After the 5th shift input
(8) Shift target start device
(9) Shift range
(1) Before shifting the bit
(2) After shifting the bit
00
M15
M14
0
M13
0
M12
0
M11
1
M10
1
M9
0
M8
00100010
0000
1
0
1
0
00010010
000
1
0
11
0
00101010
1
00
1
00
1
0
0
0
0
0
0
M0
M14SFTP
M13SFTP
M12
SFTP
M11SFTP
M10SET
X2
(1)
(7)
(2)
(3)
(4)
(5)
(6)
(8)
(9)
0000000
b15 b5 b4 b0
0
11111000 1
0001000101110001
……
D0
(1)
(2)