Connections; Addressing With 1719 Ex I/O - Allen-Bradley 1719 Ex I/O User Manual

Chapter 4 Operation
40
EtherNet/IP network. The 1719 Ex I/O modules can operate immediately after
receiving the configuration data.

Connections

During module configuration, you must define the module. Among the Module
Definition parameters, you must choose a connection type for the module. A
connection is a real-time data transfer link between the owner-controller and the
module that occupies the slot that the configuration references.
When you download module configuration to a controller, the controller
attempts to establish a connection to each module in the configuration.
For information on individual module configuration, refer to the Add-on Profile
help file.

Addressing with 1719 Ex I/O

When manually configuring 1719 Ex I/O, it is important to note the slot
numbering sequence.
In general, the following rules must be considered:
• The I/O modules can be placed in any sequence on the chassis. Single-
width and dual-width modules can be mixed in any sequence on the chassis
as well.
• A single-width module occupies one slot on the chassis.
• A dual-width module occupies two slots on the chassis, which is consistent
with what is displayed in the Studio 5000 or RSLinx I/O tree.
• There can be empty slots on the chassis. When an empty slot exists, the
slot maintains its address but is left vacant. If a slot is left empty or if a
1719-ARM placeholder is mounted, the slot does not appear in the I/O
tree (and is available for a module to be mounted to this slot at a later time,
if required).
• When using the 1719-A24 extension chassis, the first available I/O
module slot on the extension chassis is addressed as the next available slot
in the I/O tree, that is, Slot 9 if connected to a 1719-A8 chassis or Slot 23
if connected to a 1719-A22 chassis.
For your reference, an example chassis is provided below followed by the
corresponding Studio 5000 and RSLinx I/O tree.
In the example, a 1719-A22 chassis is used with a 1719-AENTR adapter in
Slot 0. A mix of single and dual-width I/O modules are shown in addition to
leaving empty slots and using 1719-ARM placeholders.
Rockwell Automation Publication 1719-UM001C-EN-E - August 2018