Publication 1756-UM514B-EN-P - February 2003
8-12 Using the 1756-DHRIO Module in Remote I/O Applications
Setting the Baud Rate
The rate of I/O data exchange is directly related to the configured
remote I/O scanner baud rate. Your 1756-DHRIO module allows the
following baud rates:
· 57.6Kbaud
· 115.2Kbaud
· 230.4Kbaud
The remote I/O scanner scan each remote I/O adapter at the
following rates:
· 8ms/adapter @ 57.6Kbaud
· 5ms/adapter @ 115.2Kbaud
· 3ms/adapter @ 230.4Kbaud
To determine the RPI for all Controller Organizer entries, use the
graphs in
Figure 8.3.
The graphs in Figure 8.3 provide the minimum RPI for the different
baud rates. Rates faster than those specified do not provide greater
data throughput.
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