Rockwell Automation 1756-DHRIO_DHRIOXT ControlLogix Data Highway Plus-Remote I/O Communication Interface Module - Manual (Page 109)

Rockwell Automation Publication 1756-UM514C-EN-P - June 2014 109
Using the 1756-DHRIO and 1756-DHRIOXT Modules in Remote I/O Applications Chapter 9
To determine the RPI for all Controller Organizer entries, use the graphs in the
following figure.
The following graphs provide the minimum RPI for the baud rates. Rates faster
than those specified do not provide greater data throughput.
Adapter Update Rates for Remote I/O at 230.4Kbaud Rate
Adapter Update Rates for Remote I/O at 115.2Kbaud Rate
Adapter Update Rates for Remote I/O at 57.6Kbaud Rate
Number of Controller
Organizer Entries under a
1756-DHRIO or
1756-DHRIOXT module
Number of Controller
Organizer Entries Under a
1756-DHRIO or
1756-DHRIOXT module
Number of Controller
Organizer Entries Under a
1756-DHRIO or
1756-DHRIOXT module
3ms/adapter
5ms/adapter
8ms/adapter
Operating RPI rate
Operating RPI rate
Operating RPI rate
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