User manual

Read/write function block data

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Table 64: Operand overview

Table 65: Index 0: Bit IO

Table 66: Index 1 - Mode

Index

(hex)

Operand Read Write

00 Bit IO, J Table 65 ×

01 Mode, J Table 66 ×

02 First operand I1 × c

03 Second operand I2 × c

04 Operation result QV ×

1) The value can only be written if it is assigned to a constant in the

program.

The data for index 2 to 4 is transferred as a 32-bit value in

Intel format (Data 1 – Low Byte to Data 4 – High Byte).

Bit 7 6 5 4 3 2 1

FB output Data 3 – – – – – – ZE

1) Status 1 if the value of the function block output QV (the

operation result) equals zero

Data 1

(hex)

00 AND And sequence

01 OR Or sequence

02 XOR Exclusive Or sequence

03 NET Inverts the individual bits of the value at I1.

The inverted value is represented as a

signed decimal value.