Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario descargar pdf (Pagina 57)

Publication 1760-UM003A-EN-P - September 2005

Application Examples for Pico 6-13

The markers N3, N11 and N16 are set.

Operating hours counters: O1 – O4

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

operating hours counters O1 – O4.

Table 6.21 The N Markers are Read

Byte Meaning Value (hex), sent by

Master Slave Master Slave

Attribute ID: Read 88 –

0 Response:

Read successful – C2

Command rejected –

C0

(1)

(1) Possible causes <bullets>a page 49

0 1 Len 01 01

1 2 Type

N marker 87 87

2 3 Index 00 00

3 4 Data 1 (Low Byte) 00 04

4 5 Data 2 (Low Byte) 00 84

5 – 6 6 – 7 Data 3 – 4 00 00

Table 6.22 Telegram Structure

Byte Meaning Value (hex), sent by

Master Slave Master Slave

Attribute ID: Read 88 –

0 Response:

Read successful – C2

Command rejected –

C0

(1)

(1) Possible causes page 6-34

0 1 Len 01 01

1 2 Type EF EF

2 3 Index 00 00

3 4 Data 1 (Low Byte) 00 Table 6.23

4 – 6 5 – 7 Data 2 – 4 00 00

1 2 ... 52 53 54 55 56 57 58 59 60 61 62 ... 167 168

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