Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 120)

120 Rockwell Automation Publication 1756-UM514C-EN-P - June 2014
Chapter 10 Using the Studio 5000 Environment in Remote I /O and Block Transfer Applications
Edit Configuration
After you complete configuration for a project, you can review and change your
choices. Changes can be made while the project is online (also known as
Dynamic Reconfiguration) or offline.
The following figure shows how to access a module’s properties.
The naming page appears for the module on which you must change
configuration.
Use the Studio 5000
Environment in 1756-DHRIO
Module Block Transfer
Applications The Studio 5000 environment automatically allocates a portion of a controller’s
memory for the data collected in remote I/O applications. In block transfer
applications, however, the data transferred between the controller and the remote
modules (for example, analog or specialty I/O modules) is greater than the
software can allocate memory for. You must generate tags (that is space in the
controller’s memory) for the data transferred. This section explains how to
configure a block transfer application.
The process for block transfers with the 1756-DHRIO and 1756-DHRIOXT
modules is similar to the process for remote I/O, except that block transfer
applications require several additional steps, including the use of a message
instruction to read data from or write data.
When you use the 1756-DHRIO or 1756-DHRIOXT module for block
transfers, you must follow these basic steps:
1. Add the 1756-DHRIO or 1756-DHRIOXT module to the project.
IMPORTANT Although you can change configuration while a project is online, you must
go offline to add or delete modules and adapters to or from the project.
1. Right-click the module.
2. Click Properties.