Rockwell-automation 1760-DNET Pico DeviceNet Communications Module Use Manual de usuario descargar pdf (Pagina 65)

Publication 1760-UM003A-EN-P - September 2005

Application Examples for Pico 6-21

• The maximum data length is 4 bytes. All values must be

transferred in hexadecimal format.

Overview

Analog value comparator/threshold comparator: A1 – A16

Table 6.38 Overview

Operands Meaning Read/Write Type

(hex)

Page

A1 – A16 „Analog value comparator/threshold

comparator: A1 – A16“

Read/Write 8D 21

C1 – C16 „Counter relays: C1 – C16“ Read/Write 8F 23

O1 – O4 „Operating hours counters: O1 – O4“ Read/Write 92 25

T1 – T16 „Timing relays: T1 – T16“ Read/Write 8E 27

Y1 – Y8 „Year time switch: Y1 – Y8“ Read/Write A2 30

Ö1 – Ö8 7-day time switch: Ö1 – Ö8 Read/Write A1 32

Table 6.39 Telegram Structure

Byte Meaning Value (hex), sent by

Master Slave Master Slave

Attribute ID

Read 89 –

Write 8D –

0 Response:

Read successful – C2

Write successful – C1

Command rejected –

(2)

(2) Possible causes page 6-34

0 1 Type 8D 8D

1 2

Instance

(1)

(1) Pico provides 16 analog comparators A1 to A16 for use as required. These can be addressed using the instance

(0 – F).

00 – 0F 00 – 0F

2 3 Index Table 6.40 Table 6.40

3 – 6 4 – 7 Data 1 – 4 depending on

index,

Table 6.41

depending on

index,

Table 6.41

1 2 ... 60 61 62 63 64 65 66 67 68 69 70 ... 167 168

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