Manual
ibaBM-DP
22
Issue 1.7
Note on the compatibility mode 3Mbit / 32Mbit
In contrast to the predecessor, ibaBM-DP does not have any PROFIBUS terminating re-
sistors and no switch for bridging the buses 0 and 1. Please use instead the terminating
resistors on the PROFIBUS connectors. For connecting the buses 0 and 1, you may use
a cable bridge.
7.3.4.1 Compatibility mode 3Mbit (DP-64 mode)
S1 = 0 and S2 = 0
With this setting, the device replaces the predecessor devices ibaBM-DPM-S-64, ibaBM-
DPM-64 and DPM64. The devices can be used for data acquisition with ibaPDA, but also
as system coupling without ibaPDA. In this mode, the device provides up to 2 slaves,
which can be operated in different modes. Up to 64 analog and 64 digital values can be
transmitted in 1 ms. A sniffer function is not available.
The device can be operated in DP-64 mode also with an older ibaFOB-S or ibaFOB-X
card.
For further information, please see chapters 8.9 and 13.
7.3.4.2 Compatibility mode 32Mbit
S1 = 1 and S2 = 0
With this setting, the device replaces the predecessor device ibaBM-DPM-S in existing
installations and works with a fixed 32Mbit telegram on the FO side. A unidirectional FO
connection is needed to the ibaPDA system. The configuration data is transmitted to the
device via an Ethernet connection. Sniffer function and active slaves can be used simul-
taneously.
In this mode, up to 512 analog (a total max. of 1984 Bytes for analog values) and 512
digital values can be acquired. Up to 8 active slaves can be optionally assigned to
bus 0/1.
The redundancy mode can be used in compatibility mode 32Mbit, see chapter 12. The
use of redundancy mode requires an additional license.
The device can be operated in 32Mbit mode also with an older ibaFOB-X card. The
compatibility mode is also a good solution, if an existing ibaPDA system is to be ex-
tended, but no FO outputs are available or cannot be retrofitted.
For further information, please see chapters 8.2, 8.4 and 10.2.
7.3.4.3 32Mbit Flex mode
S1 = 1 and S2 = 1 … F (variable)
32Mbit Flex mode is the delivery state of the device (with S2 = 1)
With this setting, the device operates with 32Mbit Flex telegram on the FO side. A bidi-
rectional FO connection is needed to the ibaPDA system. The configuration data is trans-
ferred from ibaPDA to the device via FO connection. Sniffer function and active slaves
can be used simultaneously.
Depending on the timebase, up to 4060 Bytes per cycle can be acquired and recorded
with up to 1024 analog values and 1024 digital values. When transferring the maximum
data volume of 4060 Bytes the timebase must not be faster than 1.4 ms. With a timebase
of 1 ms, up to 3100 Bytes can be transferred. The shortest cycle time is 0.5 ms
