Read/write function block data

Table 55:

Operand overview

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Index

 

Operand

 

 

 

Read

 

Write

(hex)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

00

 

Bit IO, J Table 56

 

 

 

×

 

 

01

 

Mode, J Table 57

 

 

 

×

 

 

02

 

First operand

 

I1

 

×

 

c1

03

 

Second operand

 

I2

 

×

 

c1

04

 

Result

 

QV

 

×

 

 

 

 

 

 

 

 

 

 

 

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

J

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).

Table 56: Index 0: Bit IO

 

Bit

7

6

5

4

3

2

1

FB output Data 3

 

ZE1

CY1

1)Status 1 if the value of the function block output QV (the calculation result) equals zero

2)Status 1 if the value range is exceeded

Table 57:

 

Index 1 - Mode

 

 

 

 

 

Data 1

 

 

 

 

(hex)

 

 

 

 

 

 

 

 

 

00

 

ADD

 

Add (I1 + I2 = QV)

01

 

SUB

 

Subtract (I1 – I2 = QV)

 

 

 

 

 

02

 

MUL

 

Multiply (I1 × I2 = QV)

 

 

 

 

 

03

 

DIV

 

Divide (I1 : I2 = QV)

 

 

 

 

 

MN05013001E

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