Allen-Bradley Compact I/O 1769-ADN DeviceNet, User Manual

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Publication 1769-UM001B-EN-P - October 2002
Application Examples 6-7
When you choose Edit I/O Parameters , you’ll see this screen.
Polled connection is the default
1
. You could choose to enable a
Change of State/Cyclic connection, but we won’t be using that in this
example. Refer to Chapter 2 of this document for more information.
Rx (receive) and Tx (transmit) sizes default to the Total Input and
Output bytes from the 1769-ADN summary page. For this example,
52 is the Rx size and 18 is the Tx size.
Choose the Every Scan poll rate. Refer to the 1747-SDN
documentation for a complete description of Every Scan and
Background Poll Rates.
1 Refer to Appendix C for some important system characteristics when using the polled mode (minimum
inter-scan delay I.D. for polled connections).
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