AddFEM
Commissioning / Operation / Maintenance
5-41
AddFEM
C79000–G8076–C900–03
5.5.3.1.2 Redundant AS (Operating Mode 1)
At Operating Mode 1 the AddFEM is docked ”virtually” to both PROFIBUS DP lines
of the redundant SIMATIC S7–400H.
Figure 5-19 Redundant AS
An AddFEM is displayed at each of the PROFIBUS DP lines in HW Config. Howe-
ver, in reality only one AddFEM is installed as hardware with two PROFIBUS DP
interfaces. A PROFIBUS DP address has to be assigned to each interface. Two
”modules” must therefore be configured identically in HW Config.
Note
Operating Mode 1 “AS red. AddFEM not red.” has to be set individually at each of the
displayed modules.
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