A detailed discussion of failover can be found later in this manual in a section titled “Failover Operation”.
Enable failover
This option controls the failover mode of the interface. Specify /FM=1 for the primary interface and /FM=2 for the secondary interface. Also, for the secondary interface, supply the PCU number of the ICI mode communicating to the primary interface. The details of the failover mechanism are described in Failover Operation section. The command line equivalent is /fm=x.
Primary PCU address:
The failover primary PCU address is required only if failover is used, and this is the secondary interface. The command line equivalent is /fp=x.
UniInt Health Tag ID:
If failover is enabled, a UniInt Health Tag ID (UHT_ID) parameter must be specified. This parameter is used to filter UniInt Health Tags by Location3. The parameter should be different from another interface – failover member parameter. If the same /UHT_ID value is used for both instances, the text box will have yellow back color indicating a bad value. If this parameter has a bad value or missing the default value 0 for Location3 PI attribute will be used.
The command line equivalent is /UHT_ID=#, where x the number for Location3 PI Attribute.
Even though the Bailey semAPI is designed to handle multiple user clients, PI Bailey semAPI interface expects exclusive control of the ICI device, specially the configuration of the point table on the ICI. If the interface is started in trouble-shooting mode (/ICDB), the user can simultaneously communicate with the ICI via Bailey’s TALK90 program. This can be a useful debugging tool for determining the current condition of the ICI. During normal operation, this option should not be checked. The command line equivalent is /icdb.