ibaBM-DP
Manual
Issue 1.7
11
Fig. 2: Principle of the active slave operation
Redundancy mode
With the ‘redundancy mode’ option, ibaBM-DP can read and acquire data on redundant
PROFIBUS lines on S7-400H control systems, both as sniffer and as active slave.
ibaBM-DP monitors the telegram traffic on both PROFIBUS lines and dynamically de-
tects, over which line valid data are currently being sent that are recorded with ibaPDA.
This procedure offers the advantage that data do not need to be acquired twice.
ibaBM-DP immediately identifies error situations such as the switching of a CPU to
STOP, the failure of a slave connection or broken cables and automatically switches to
the intact bus system.
P2P mode
The P2P mode (peer-to-peer) enables a bidirectional system interconnection via PRO-
FIBUS with iba devices with an ibaNet 32Mbit interface (e.g. via ibaLink-VME to VME-
based control systems). For this purpose, the data from the ibaNet interface are mapped
on up to 8 PROFIBUS slaves.
Simulation mode
With the ‘simulation mode’ option, software and the configuration of a DP master station
can be tested without the need for a peripheral system of the PROFIBUS to be physically
present. This means, for example, that a new control program can be tested in a test
environment. This way, expensive down times during commissioning can be reduced.
ibaBM-DP simulates the slaves as they are configured in the master. It is not necessary
to carry out a PROFIBUS configuration in ibaBM-DP since the configuration telegrams
of the master are evaluated for the simulation and the corresponding slaves are auto-
matically created.
The input values of the slaves are simulated using a TCP/IP telegram interface and the
output values are requested. The use of this TCP/IP interface for the simulation of the
plant is possible using any tools (e.g. ibaLogic).
Mirror mode
The ‘mirror mode’ option is ideally suitable for modernizations where a new control sys-
tem needs to run in test mode alongside the plant in operation. ibaBM-DP is coupled into
the original PROFIBUS link via a PROFIBUS connection. The second connection is con-
nected to the new control system. ibaBM-DP mirrors resp. simulates the slaves from the
original line in the parallel system and the input data are also copied in this process.
Thus, a new control system can be tested in parallel with the original slaves and the real
input data. Signals from the original and parallel system can be recorded and compared
simultaneously with ibaPDA using the sniffer function.
