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Connection object – Watlow Series SD6 Limit With Devicenet User Manual

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Wa t l o w S e r i e s S D 6 L i m i t w i t h D e v i c e N e t

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Table 12. Static Output – Instance 100 in the Assembly Object (total of 9 bytes)

Class Services: NONE

Instance Services:

• 0x0E

GET ATTRIBUTE SINGLE

• 0x10

SET ATTRIBUTE SINGLE

Link

Producer

Transmission

Reception

Application

Link

Consumer

Connection Object

Connection Object

Class Code: 05hex

The Connection Class allocates and manages the internal
resources associated with both I/O and Explicit Messaging
Connections. The specific instance generated by the
Connection Class is referred to as a Connection Instance or
a Connection Object.

A Connection Object within a particular module actually
represents one of the end-points of a Connection. It is pos-
sible for one of the Connection end-points to be configured
and “active” (e.g., transmitting) without the other end-
point(s) being present. Connection Objects are used to
model the communication specific characteristics of a par-
ticular application-to-application relationship.

A specific Connection Object Instance manages the commu-
nication-specific aspects related to an end-point.

Byte

Parameter and Description

Size of Data

Range

0-3

Limit 1 Low

Low limit set point for output 1.

DINT

-1999.000 to 9999.000

4-7

Limit 2 High

High limit set point for output 1.

DINT

-1999.000 to 9999.000

8

Set Point Control

Breakdown of byte:
Bit 0 : Selects whether setting output 1's set
points is done via the SD front panel or through
DeviceNet.

USINT

(0) DeviceNet
(1) SD front panel