Ownership; Configure A 1719 Ex I/O System - Allen-Bradley 1719 Ex I/O User Manual

Ownership

Configure a 1719 Ex I/O
System
Operation
WARNING: Risk of explosion
If I/O modules are hot swapped, there is a risk of explosion due to sparks forming,
since the connections on the backplane are not intrinsically safe.
Before replacing I/O modules, make sure that the atmosphere is not potentially
explosive, for example, by obtaining a hot work permit.
During operation, you can access up-to-date measured values and diagnostic
information for the I/O modules through the adapter. For more information, see
the help topic for the adapter.
In addition, you can read off basic information about supply and communication
from the LEDs on the I/O modules and adapters. For more information about
the LEDs, refer to the technical data sheets for the I/O modules and the adapter.
Every I/O module in a Logix control system must be owned by a controller, also
known as the owner-controller. When the 1719 Ex I/O modules are used in a
Logix control system, the owner-controller performs the following:
• Stores configuration data for every module that it owns.
• Can reside in a location that differs from the 1719 Ex I/O.
• Sends the I/O module configuration data to define module behavior and
begin operation in the control system.
Each 1719 Ex I/O module must continuously maintain communication with its
owner-controller during normal operation. The 1719 Ex I/O modules are
limited to one owner-controller that performs the functions that are listed
previously. Other controllers can establish Listen-Only connections to the
1719 Ex I/O modules. If a controller uses a Listen-Only connection, the
connection must use the Multicast option.
You must create a Studio 5000 Logix Designer® application project for the Logix
controller that owns the 1719 Ex I/O module. The project includes module
configuration data for the 1719 Ex I/O modules. The Logix Designer
application transfers the project to the owner-controller during the program
download. Data is then transferred to the 1719 Ex I/O modules over the
Rockwell Automation Publication 1719-UM001C-EN-E - August 2018
4
Chapter
39