Rockwell-automation 1769-ADN Compact I/O 1769-ADN DeviceNet Adapter Manual do Utilizador descarregar pdf (Página 119)

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

. 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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Rockwell-automation 1769-ADN Compact I/O 1769-ADN DeviceNet Adapter Manual do Utilizador Página 119