ibaPADU-16-M Manual
7
System Topologies and Addressing
There are 2 modes that can be set by an ibaPADU-16-M device. These modes can be
mixed within one device and within one PC.
M Mode: Mode switch in position 0
Sample rate up to 25 kHz
No daisy chain possible
Synchronous mode
F Mode: Mode switch all positions between 1 and 8
Sample rate up to 1 kHz
Daisy chain possible
Asynchronous mode
7.1
M Mode
The ibaPADU-16-M device needs two bi-directional fiber optic connections (ring topo-
logy) for proper operation.
The ibaPADU-16-M is directly connected to the ibaFOB-4i/4o (S or D) fiber optic ports.
8 devices are allowed per PC with a sampling rate of 25 kHz.
Note
Cascading of devices is not allowed.
Signal distribution: Optical output signals cannot be multiplied (with ibaBM-FOX-i-3o
device).
Synchronization of different links: All device samples are fully synchronized with ns ac-
curacy.
7.2
F Mode
The ibaPADU-16-M device needs only 2 simple fiber optic connections per device to
the FOB card. The device mode switch must be set to one of the positions between 1
and 8. No synchronous monitoring or recording of input signals. Set to F mode up to 4
ibaPADU-16-M devices are cascadable on the fiber optic links.
The maximal sample rate is 1 kHz. The number of devices per PC is limited only by the
number of slots for the FOB boards.
Note
Addressing: One address represents 8 analog and 8 digital channels. In a cascade of
devices each device must have a unique address. One device (2 modules) occupy 2
address areas.
Mixing of different ibaPADU device types (ibaPADU-16-M in F Mode, ibaPADU-8, iba-
PADU-32, ibaNet750 ) within a fiber optic link cascade is allowed.
Signal distribution: All optical output signals may be multiplied with an ibaBM-FOX-i-3o
device.
Synchronization of different links: The accuracy of the acquisition is 1 ms.
Issue 2.1
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