beautypg.com

Chapter, What this chapter contains, About the controlnet adapter – Rockwell Automation 1793-OE2S FLEX INTEGRA ANALOG MOD User Manual

Page 52: Communication over the flex i/o backplane

background image

Publication 1793-6.5.1 - April 1999

Chapter

6

Input, Status, Output and Configuration Files
using ControlNet

What this Chapter Contains

Read this chapter to familiarize yourself with input, output and
configuration files for analog I/O modules on ControlNet.This chapter talks
about:

• the ControlNet Adapter

• I/O structure

• fault state data

• communication fault data

• idle state behavior

• input data behavior upon module removal

About the ControlNet Adapter

The FLEX I/O ControlNet adapter (cat. no. 1794-ACN15 or -ACNR15)
interfaces up to 8 FLEX I/O and/or FLEX Integra modules and a
ControlNet processor or scanner. The adapter can support ControlNet
real-time data connections to individual modules or module groups. Each
connection is independent of the others and can be from different processors
or scanners.

Communication Over the
FLEX I/O Backplane

One ControlNet adapter can interface up to eight terminal base units with
installed FLEX I/O and/or FLEX Integra modules, forming a
FLEX I/O system of up to eight slots. The adapter communicates to other
network system components (typically one or more controllers or scanners,
and/or programming terminals) over the ControlNet network. The adapter
communicates with its I/O modules over the flexbus backplane.

I/O Module

I/O Module

I/O Module

Configuration

Configuration

Configuration

Inputs

Inputs

Inputs

Status

Outputs

Status

Status

Outputs

Outputs

Read
Words

Write
Words

0

X

Slot 0

Slot 1

Slot 7

Network

ControlNet
Adapter

Read

Write

41626