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Chapter 2
Product Specifications
22
Backplane Combinations
Base backplanes can be extended using an extension backplane. The I/O modules
on the extension backplane are controlled via the adapters on the base backplane.
The power supply for the additional I/O modules is provided by additional
power supplies on the extension backplane.
Base Backplane
1719-A22
1719-A8
When working with an extension backplane, take note of the following:
• Online addition of an extension backplane while the system is in Run
mode is not supported.
• Make sure that the program configuration matches the hardware setup.
Studio 5000® does not know how many slots are in the base backplane or
extension backplane. Only the total number of slots is checked. Therefore,
Studio 5000 allows you to add dual-width modules across a backplane
boundary. In this case, the project can be downloaded to the controller but
the controller will not establish a connection.
• Each module requires at least one EtherNet/IP connection. Additionally,
the I/O modules support listen-only connections.
Backplane and Module Compatibility
In principle, 1719 backplanes are compatible with all 1719 modules. Single-
width I/O modules occupy one slot, while dual-width I/O modules occupy two
slots. However, be aware of the following restrictions.
Temporary Overload of the Power Supply
To avoid a temporary overload of the power supply in the startup phase, the
number of certain I/O modules on the chassis is limited.
Use a maximum of eight 1719-IF4HB four-channel I/O modules per chassis.
Each I/O module consumes 12.5% of the startup capacity.
Scope of Delivery
Base backplanes are not delivered with any accessories. Extension backplanes are
delivered with a 1-m-long double-ended cordset (1719-CBL). The double-ended
cordset establishes the connection to the base backplane.
Rockwell Automation Publication 1719-UM001C-EN-E - August 2018
Extension Backplane
1719-A24
1719-A24
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