Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario descargar pdf (Pagina 117)

Publication 1760-UM003A-EN-P - September 2005

Pico GFX Control Commands 7-37

3 – 6 4 – 7 Data 1 – 4

Read operation 00 depending on

index,Table 6.133

Write operation depending on index,

Table 6.133

Table 6.132 Operand Overview

Index

(hex)

Operand read write

00 Bit IO, Table 6.133 x

01 Mode/Parameter – –

02 Comparison value I1 x

(1)

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

03 Comparison value I2 x

(1)

TIP

The data for index 2 and 3 is transferred as a 32-bit

value in Intel format (Data 1 – Low Byte to Data 4 –

High Byte).

Table 6.133 Index 0 – Bit IO

FB output Data 3

Bit 76543 2 1

––––

(1)

(1) greater than: Status 1 if the value at I1 is greater than value at I2 (I1 > I2)

(2)

(2) equal: Status 1 if the value at I1 is equal to value at I2 (I1 = I2)

(3)

(3) less than: Status 1 if the value at I1 is less than value at I2 (I1 < I2)

Table 6.131 Telegram Structure

Byte Meaning Value (hex), sent by

Master Slave Master Slave

1 2 ... 112 113 114 115 116 117 118 119 120 121 122 ... 167 168

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Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario Pagina 117