Publication 1756-UM523F-EN-P - December 2006
160 Set Up EtherNet/IP Communication Across Subnets
Send the Message to the Appropriate Controller
ChasA_IsPrimary If set (1), then Chassis A is the primary chassis. IsPrimary.0 BOOL
ChasB_IsPrimary If set (1), then Chassis B is the primary chassis. IsPrimary.1 BOOL
IsPrimary Each bit represents the primary status for an
individual chassis within a redundant chassis pair.
1 = primary.
0 = not primary.
A single DINT tag for all the chassis uses less
memory than a unique tag for each chassis.
DINT
Tag Name Description Alias For Data Type
If Timer_RedundancyMSGs.DN = 1 (2 seconds are up.)
And ChasA_IsPrimary = 1. (Chassis A is the primary chassis.)
And ChasA_MSG.EN = 0 (The message is not currently enabled.)
Then
Execute the MSG instruction for the controller in Chassis A.
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