Allen-Bradley POINT I/O PROFIBUS 1734-APB, User Manual, Page: 30 / 88

Publication 1734-UM005B-EN-P - June 2001
3-6 Configuring the POINT I/O System
Adding I/O Modules to the
Adapter
After you add the adapter, you must add the POINT I/O modules
connected to the adapter in the backplane.
You can select any of 5 different types:
1. Modules with Configuration Data
If you select modules with configuration data (i.e. 1734-IB2), the
configuration data would be available for you to manually
modify. Refer to “Configuring I/O Modules” later in this chapter.
2. Modules without Configuration Data
If you select modules without configuration data (i.e.1734-IB2/
No config data), you will not be able to change the
configuration data. This data would be set to a default setting.
However, you can still disable the diagnostic functionality for
the module.
3. Empty Slot Modules
If you have a gap in the backplane, you should use an empty
slot module (i.e. 1734-IB2/Empty slot). The empty slot module
reserves memory space in your master for addition of a module
at a later date.
4. Grouped Modules
In order to use memory more efficiently, modules can be
grouped together in a single byte. The modules must be inserted
next to each other and be of the same module family. Each
module will have the same configuration as the first module in
the group. Eight channels (1 byte) is the maximum allowed.
Refer to chapters 4 and 5 for “Grouped Mode” information.
When configured for grouped mode, you can save user
parameter data and I/O data.
5. Grouped Empty Slot Modules
If you have a gap in the backplane where the missing modules
belong to a group, use a grouped empty slot module. Refer to
chapter 4 for more information.
NOTE: In the following example, only modules with configuration
data are used.
The modules you select are transferred to the adapter with the
PROFIBUS Check_Config service. For a detailed description of the
Check_Config service, refer to Chapter 4.