Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module User Manual

Page 127

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Rockwell Automation Publication 1756-UM514C-EN-P - June 2014

127

Using the Studio 5000 Environment in Remote I /O and Block Transfer Applications

Chapter 10

Naming Screen (first
screen):

Parameter:

Definition:

Name

Module name. This field is required.

Description

Optional description of the module.

Parent Channel

1756-DHRIO or 1756-DHRIOXT module channel to which this adapter is
connected.

Rack Number (#)

Remote I/O rack number (in octal from 0…76)

Starting Group

First word of input/output from a given rack begins at group 0, 2, 4, or 6. For
example, a system of 2 racks and 4 words of I/O can be:
Rack 12, st grp 2, size 1/4
Rack 12, st grp 6, size 1/4

Size

Words of data are available for the given rack, including:
1/4 rack = 2 words of input and 2 words of output
1/2 rack = 4 words of input and 4 words of output
3/4 rack = 6 words of input and 6 words of output
Full rack = 8 words of input and 8 words of output

Requested Packet
Interval Screen
(second screen):

Parameter:

Definition:

Requested Packet
Interval

User-defined rate (2…750ms) that determines the rate at which the
module scans data from the remote I/O.

Inhibit Module

Feature that lets you configure the remote I/O adapter module but prevent it
from communicating with the controller. In this case, the controller does not
establish a connection until the adapter is uninhibited.

Major Fault on
Controller if
Connection Fails in Run
Mode

Use this feature to choose whether a major fault occurs on the controller if
the connection between the controller and the 1756-DHRIO or
1756-DHRIOXT module fails.

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