Read/write image data

Read and write local QW0 outputs/outputs of the stations QW1 to QW8

You can read and write the local outputs directly via PROFIBUS-DP. However, the outputs are only switched externally if the device is in Run mode and the addressed output is not being used in the circuit diagram. J Section “Read/write image data” on Page 99.

Telegram structure

Byte

 

Meaning

Value (hex), sent by

 

 

 

 

 

Master

 

Slave

0

 

Toggle byte

 

J page 94

 

 

1

 

Command

 

 

 

 

 

 

 

Read

 

91

 

 

 

 

Write

 

B1

 

 

 

Response

 

 

 

 

 

 

 

Read

 

C2

 

 

 

successful

 

 

 

 

 

 

 

Write successful

 

 

C1

 

 

 

Command

 

 

C0

 

 

 

rejected

 

 

 

 

2

 

Len

 

02

 

02

 

 

 

 

 

 

 

3

 

Type

 

04

 

04

4

 

Index1

 

00/01 – 08

 

00/01 – 08

 

 

 

 

 

 

 

5

 

Data 1

 

 

 

 

 

 

Read operation

 

 

 

 

 

 

00

 

J Table 46

 

 

 

 

 

 

 

 

 

 

 

For write

J Table 47

 

00

 

 

 

operation

 

 

 

 

6 – 8

 

Data 2 – 4

 

00

 

00

 

 

 

 

 

 

 

 

1)00 = Local output

01 – 08 = Outputs of network stations 1 – 8

MN05013001E

For more information visit: www.EatonElectrical.com

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