Rockwell Automation FactoryTalk Historian SE 3.0 H2H Interface User Guide - Manual (Page 97)

FactoryTalk Historian To Historian Interface User Guide 91
Failover Configuration Using ICU
The use of the ICU is the recommended and safest method for configuring the interface for
UniInt failover. With the exception of the notes described in this section, the interface shall
be configured with the ICU as described in the
Configuring the interface with ICU section of
this manual.
Note: With the exception of the /UFO_ID and /UFO_OtherID startup command-
line parameters, the UniInt failover scheme requires that both copies of the interface
have identical startup command files. This requirement causes the ICU to produce a
message when creating the second copy of the interface stating that the
“PS/ID
combo already in use by the interface” as shown in Figure 5 below. Ignore this
message and click the Add button.
Create the interface Instance with ICU
If the interface does not already exist in the ICU it must first be created. The procedure for
doing this is the same as for non-failover interfaces. When configuring the second instance
for UniInt Failover the Point Source and Interface ID will be in yellow and a message will be
displayed saying this is already in use. This should be ignored.
Figure 5: ICU configuration screen shows that the “PS/ID combo is already in use by the
interface.” The user must ignore the yellow boxes, which indicate errors, and click the
Add button to configure the interface for failover.