Rockwell Automation AADvance Controller Configuration Guide User Manual

Page 241

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Document: 553633
ICSTT-RM405f-EN-P
Issue 07

10-7

This configuration provides two logical networks and three physical networks.

3) Create a bound variable and select SNCP_1 for the binding.

A bound variable configured to use SNCP_1 is sent over both physical

networks and the loss of one network will not affect the consumer receiving
bound variable over this network.

4) Create a bound variable and select both networks for the variable.

A bound variable configured for both logical networks will be sent over all

three physical networks and the loss of two logical or two physical networks
can be tolerated and the consumer will still receive the variable.

SNCP KVB Driver Timeout Values

The SNCP KVB driver has a number of timeout values which are configured via the

Resource Properties dialog box. The key settings are the MaxAge and
BindRespTimeout
. These settings determine the number of binding requests a

consumer will send without getting a response before considering the bindings link as

failed and disconnecting.

ConnectTimeOut

This timeout serves two purposes:

It is the time the resource waits to connect to a producer when a consumer

resource starts up.

It is used to timeout a producer's response once a consumer has sent a "connect"

request to a producer. If the producer does not respond within the timeout, the
consumer sends another "connect" request. The consumer continues to send

"connect" request at intervals given by this timeout until a connection is

established.

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