Mitsubishi Electric MELSEC iQ-R Series - Page 1922

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28 BIT SHIFT FUNCTIONS
28.1 Shifting Data to the Left by n Bit(s)
Processing details
■Operation processing
• These functions shift the WORD or DWORD data type value input to (s) to the left by (n) bit(s), and output the operation
result, in the same data type as (s), from (d).
• Specify the number of bits to be shifted in (n).
Ex.
Data type of (s): WORD, Value input to (n): 8
• The (n) bit(s) from the least significant bit is/are filled with 0(s).
• Input a WORD or DWORD data type value to (s).
• Input an INT data type value to (n) (Number of bits to be shifted) within the following range.
■Operation result
1. Function without EN/ENO
The operation processing is performed. The operation result is output from (d).
2. Function with EN/ENO
The execution conditions and operation results will be as follows.
*1 If the value FALSE is output from ENO, the output data from (d) will be undefined. Create a program so that the undefined value will not
be used in operations.
Operation error
There is no operation error.
Data type of (s): WORD Data type of (s): DWORD
Range: 0 to 15
The lower 4-bit data is used.
[Example]
If the input value is 6: 6
If the input value is 22: 6
Range: 0 to 31
The lower 5-bit data is used.
[Example]
If the input value is 6: 6
If the input value is 22: 22
Execution condition Operation result
EN ENO (d)
TRUE (executed) TRUE Operation result output value
FALSE (not executed) FALSE
*1
Undefined value
(s)
(d)
F00H
0010011100001111
270FH
F00H270FH
0000111100000000
WORD
0
WORD