Process Station ABB FieldController 800
18
5.2 Process station AC 800FR redundant (new)
A redundant FieldController always consists of two AC 800F. In each case both modules can be
inserted in the station view of the redundant AC 800F (AC 800FR) by a simple double click. The
modules can only be inserted in the upper basic unit. The lower basic unit cannot be selected.
Otherwise the display is identical to the non-redundant FieldController.
The selection list of the redundant AC 800F only offers modules marked with an R at the end, e.g.
FI 830FR. The R stands for redundancy-capable and simply means that the parameter dialog
differs slightly from the non-redundancy-capable object. Objects with an R at the end of the type
name enable both modules to be configured at the same time. Otherwise the modules for the re-
dundant AC 800F of the HW structure are identically constructed to those of the non-redundant
AC 800F and can be used or installed interchangeably.
The redundancy link between the two FieldControllers, via which the redundancy adjustment
takes place, is created automatically when a second Ethernet module is inserted in the FieldCon-
troller, and does not have to be configured.
The IP address of the second Ethernet module required for redundancy data exchange
must be set in the HW of both FieldControllers to IP address 15 (e.g. 172.16..1.15).
In order to differentiate clearly between the two FieldControllers, they are marked IP1 and IP2. A
redundant process station or redundant FieldController is always configured with two IP ad-
dresses, IP1 indicating that the upper FieldController is operated under IP address 1 and the
lower FieldController IP2 is operated with IP address 2.
Specification of IP1 and IP2 does not determine which FieldController becomes Primary or Sec-
ondary. Using the online link both the Primary and the Secondary can be located on top. See also
Page 43, Network configuration in the hardware structure.
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