Rockwell Automation 1794-OF8IH FLEX Isolated Input/Output HART Analog Modules - Manual (Page 38)

Publication 1794-UM065B-EN-E - September 2010
26 Input, Output and Configuration of the FLEX I/O HART Analog I/O Modules
ControlNet adapter (cat. no. 1794-ACNR15). The I/O configuration portion
of another programming software, for example RSLogix5 software, could be
used to generate the configuration data for each I/O module in the control
system.
Configuration data is transferred from the controller to the I/O modules
when communication to the modules is first established.
Follow these general guidelines when configuring I/O modules.
1. Perform I/O mapping.
2. Configure all I/O modules.
3. Change to Run mode to initiate communication.
4. Download module configuration.
About the ControlNet and
EtherNet Adapters The FLEX I/O ControlNet and EtherNet adapter interfaces up to 8
FLEX I/O modules to 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 adapter can interface up to eight terminal base units with installed
FLEX I/O 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, scanners, or programming terminals) over the
network. The adapter communicates with its I/O modules over the
FLEX I/O backplane.
IMPORTANT
The FLEX HART modules utilize cyclic extended data transfer
(CEDT) for configuration and data management. Your adapter
must support the CEDT functionality to fully take advantage of
the modules data.
Make sure your ControlNet adapter firmware supports the
cyclic EDT functionality (Version 5 or greater), and that your
EtherNet adapter firmware is Version 4.2 or greater. If using
RSLogix 5000 software, you must use V17 or later.