Read/write function block data
Table 75: | Operand overview |
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Index |
| Operand |
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| Read |
| Write |
(hex) |
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00 |
| Bit IO, Table 76 |
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| × |
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01 |
| Mode/Parameter |
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| – |
| – |
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02 |
| Comparison value | I1 |
| × |
| c1 |
03 |
| Comparison value | I2 |
| × |
| c1 |
1)The value can only be written if it is assigned to a constant in the program.
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The data for index 2 and 3 is transferred as a
Table 76: Index 0 – Bit IO
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 |
FB output Data 3 |
| – | – | – | – | GT1 | EQ2 | LT3 |
1)greater than: Status 1 if the value at I1 is greater than value at I2 (I1 > I2)
2)equal: Status 1 if the value at I1 is equal to value at I2 (I1 = I2)
3)less than: Status 1 if the value at I1 is less than value at I2 (I1 < I2)
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