Rockwell Automation 1734-ACNR Point I/O ControlNet Adapter Installation Instructions - Manual (Page 17)

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Publication 1734-IN582B-EN-P - February 2005
Specifications
Specifications - 1734-ACNR ControlNet Adapter
Expansion I/O Capacity Maximum of 63 modules
Maximum of 5 Rack Optimized connections (for digital
modules only)
Maximum of 25 Direct connections
1734-ACNR backplane current output = 1.0A maximum.
See list following for backplane current consumption for
each Point I/O catalog number and current consumption for
each of the Point modules connected to the 1734-ACNR.
Verify it is below 1.0A.
Backplane current can be extended beyond 1.0A with a
1734-EP24DC Backplane Extension Power Supply. The
1734-EP24DC can supply up to an additional 1.3A of
backplane current.
Multiple 1734-EP24DC modules can be used to reach the
maximum of 63 modules.