Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario descargar pdf (Pagina 52)

Publication 1760-UM003A-EN-P - September 2005

6-8 Application Examples for Pico

Local inputs: I1 – I16

This command string enables you to read the local inputs of the Pico

basic unit. The relevant input word is stored in Intel format.

Table 6.12 Byte 3 to 4 (master) or Byte 4 to 5 (slave): Data 1 to 2

Data 1 Bit76543210

D1 0/1

D2 0/1

... ...

D8 0/1

Data 2 Bit76543210

D9 0/1

D10 0/1

... ...

D16 0/1

Table 6.13 Telegram Structure

Byte Meaning Value (hex), sent by

Master Slave Master Slave

Attribute ID: Read 88 –

0 Response:

Read successful – C2

Command rejected –

(1)

(1) Possible causes <bullets>a page 45

0 1 Len 02 02

1 2 Type 84 84

2 3 Index 00 00

3 4 Data 1 (Low Byte) 00 Table 6.14

4 5 Data 2 (High Byte) 00 Table 6.14

5 – 6 6 – 7 Data 3 – 4 00 00

1 2 ... 47 48 49 50 51 52 53 54 55 56 57 ... 167 168

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Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario Pagina 52