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Cascade object, Cascade object 74, Table 3.36—cascade class and services 74 – Watlow Series D8 User Manual

Page 92

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Chapter 3: Communicating by DeviceNet

Series D8 User’s Guide

74

Watlow Anafaze

Doc. 0600-3120-2000

Table 3.35 Ratio Instance Attributes

(Instances 1 to 4 or 8)

NOTE!

All successful explicit message responses
from a Set service will contain no data. The
response will be a two-byte message con-
taining the requester’s node address and
service code (with R/R bit set).

Cascade Object

The Cascade Object provides read/write access to all cascade

parameters. Instance 0 of this object contains the class at-

tributes listed in Table 3.37. The four-loop controller has four

additional instances, and the eight-loop controller has eight

additional instances, each containing the attributes listed in

Table 3.38. Instance 1 corresponds to loop 1, instance 2 cor-

responds to loop 2, and so on.

Table 3.36 Cascade Class and Services

Table 3.37 Cascade Class Attributes

(Instance 0)

Attribute

Access

Name

Type

Description

100 (64 hex)

Get/Set

Ratio Master Loop

USINT

See page 150.

101 (65 hex)

Get/Set

Ratio Low Set Point

INT

See page 150.

102 (66 hex)

Get/Set

Ratio High Set Point

INT

See page 151.

103 (67 hex)

Get/Set

Control Ratio

UINT

See page 151.

104 (68 hex)

Get/Set

Ratio Set Point Differential

INT

See page 151.

Class Code

6A hex

Class Services

0E hex Get Attribute Single

Instance Services

0E hex Get Attribute Single
10 hex Set Attribute Single

Attribute

Access

Name

Type

Description

1 (1 hex)

Get

Revision

UINT

Revision of this object

2 (2 hex)

Get

Max

Instance

UINT

Maximum instances of this object (8)

3 (3 hex)

Get

Number of

Instances

UINT

Number of object instances