Toshiba PROSEC T1-16S PLC User's Manual - CTi Automation

FUN 121 DEC Decode
Expression
Input −[ A DEC (n) B ]− Output
6F3B0253
7. Instructions
Function
When the input is ON, this instruction sets the bit position which is designated by lower n bits of A
to ON in the bit table, size 2 n bits starting with 0 bit (LSB) of B, and resets all other bits to OFF.
Execution condition
Input Operation Output
OFF No execution OFF
ON Execution ON
Operand
Name Device Register Constant Index
X Y R S T. C. XWYWRWSW T C D I J K
A Decode source √ √ √ √ √ √ √ √ √ √
n Table size 1 - 8
B Start of table √ √ √ √ √ √
Example
2 5 (=32) bits starting with 0 bit of RW05 (R050 to R06F) are defined as the bit table.
When R011 is ON, the bit position designated by lower 5 bits of D0011 in the bit table is set to
ON, and all other bits in the table are reset to OFF.
The following figure shows an operation example.
F E D C B A 9 8 7 6 5 4 3 2 1 0
D0011 1 1 0 0 0
Ignored H18 (=24)
Sets ON
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 3 2 1 0
0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
RW06 RW05
Basic Hardware and Function 201
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