Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario descargar pdf (Pagina 51)

Publication 1760-UM003A-EN-P - September 2005

Application Examples for Pico 6-7

Text function blocks: D1 – D16

The following commands are used to read the logic state of the

individual text function blocks (D markers).

Table 6.10 Byte 3 to 4 (master) or Byte 4 to 5 (slave): Data 1 to 2

Data 1Bit76543210

C1 0/1

C2 0/1

… …

C8 0/1

Data 2Bit76543210

C9 0/1

C10 0/1

… …

C16 0/1

Table 6.11 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 page 6-34.

0 1 Len 01 01

1 2 Type 94 94

2 3 Index 00 00

3 4 Data 1 (Low Byte) 00 Table 6.12

4 5 Data 2 (High Byte) 00 Table 6.12

5 – 6 6 – 7 Data 3 – 4 00 00

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 167 168

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Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario Pagina 51