Allen-Bradley POINT I/O PROFIBUS 1734-APB, User Manual, Page: 55 / 88

1 Publication 1734-UM005B-EN-P - June 2001
Chapter
5
Grouped Mode
In This Chapter
In this chapter, you will learn about:
General
In order to use master memory most effectively, and reduce data
transfer between the POINT I/O adapter and the master, you can
group several modules in a single byte.
To configure the adapter for grouped mode you must:
1. insert modules adjacent to each other
2. Modules must be in the same module family
Groups may exist as follows:
•
1734-IB2, 1734-IV2, 1734-IM2 and 1734-IA2 can be grouped
together
•
1734-IB4 and 1734-IV4 can be grouped together
•
1734-OW2, 1734-OA2 and 1734-OX2 can be grouped together
The following modules cannot be grouped with any other
module type:
•
1734-OB2E can only be grouped with 1734-OB2E modules
•
1734-OB4E can only be grouped with 1734-OB4E modules
3. A maximum of 8 channels (1 byte) per group
4. Modules in a single byte will have the configuration of the first
module in the group. (Exception: Extended diagnostics can be
enabled/disabled on a per module basis.)
For more information about: See page:
General 5-1
How to Configure the Adapter for Grouped Mode 5-2
Configuration Example 5-3
Chapter Summary and What’s Next 5-4
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