Manual
ibaBM-DP
160
Issue 1.7
Fig. 127: HW Config, mirror system
Important note
In mirror mode, the original system always has to be connected to X40 (Bus0). The mirror
system always has to be connected to X41 (Bus1).
ibaBM-DP automatically detects the slaves on the “original” side (X40) and mirrors them
to the mirror side (X41). In this process, the input data of all slaves are also mirrored.
Thus, the controller “02_S7300_Mirror“ also can see the input data from the original sys-
tem, although it is not physically present, there. The output data are not being mirrored.
In case of a modernization of the system, in our example, the controller “02_S7300_Mir-
ror“ would be the new automation system. We can now test this system via the mirrored
input data and in parallel to the running system.
In mirror mode, we can connect ibaBM-DP in parallel to an ibaPDA system. In sniffer
mode, you can record the data from both PROFIBUS systems. Thus, you can compare
the original system to the mirror system.
Important note
For acquiring data from both PROFIBUS systems, you can connect in mirror mode
ibaPDA via FO cable to ibaBM-DP. Using ibaPDA is not compulsory. You can use the
mirror mode also without ibaPDA.
In ibaPDA, sniffer modules can be used. Active slaves are not supported.
By means of the diagnostic functions in ibaBM-DP, slaves can be detected in the original
as well as in the mirror system.
On bus 0, you can see the slaves 8, 16, 65 and 113 of the CPU “01_S7300_Orig-
inal“.
On bus 1, the mirrored slaves are visible with the same addresses. As the slaves
are not external slaves, but slaves generated on the device itself (see chap.
10.4.1), these slaves are marked - in contrast to bus 0 - with a bold frame.