IBA Optical Data Distribution System ibaBM-DIS-i-8o

Optical Data Distribution System ibaBM-DIS-i-8o

Distributes one ibaNet line to 8 ibaNet lines

Mirroring mode: 1 input is mirrored to 8 + 1 outputs (2Mbit, 3Mbit, 5Mbit and 32Mbit)

Distribution mode: Distributes 1 input with 32Mbit to 8 outputs with 3Mbit, in addition the input signal is mirrored to an output

Digital” tab

The signals are declared in two steps. First, the signals you want to acquire as source

for the digital signals have to be defined in sequential order.

Enter here the signals, which contain the digital signals in sequential order. The col

umns in the signal list have the following meaning:

❑ Decoder

Assign a meaningful name to the source signal.

❑ Direction

Select the direction from the drop-down menu:

O->T: originator -> target

T->O: target -> originator

❑ Address

The Byte address of the signal within the input and output range of the device. The ad

dress range always begins with the address 0.

❑ Data Type

Data type of the signal. The following are available: BYTE, WORD, WORD_B, DWORD,

DWORD_B.

❑ Active

With this option enabled, the source signal is acquired with its digital signals and is also

considered when checking the number of licensed signals. Individual digital signals can

be disabled.

For every source signal, the list of digital signals can be opended by clicking on the plus

sign. Here, the single bits of the source signal are defined.

❑ Name

Assign a meaningful name to the individual signals.

❑ Active

Only when this option is selected, the signal is acquired and considered when checking

the number of licensed signals.

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Calculation of the telegram size with 32Mbit Flex

The data size per participant is dynamically allocated in a 32Mbit Flex ring. The data size

is calculated by ibaPDA and it depends on the configured number of analog and digital

signals and the smallest configured timebase in the ring.

In ibaPDA, in the link view of the ibaFOB-D card on the “Configuration“ tab, you can

access a simulator. This simulator calculates the data amount which can be transferred

via the FO connection with the 32Mbit Flex protocol.

The data sizes in bytes of each device on the link and the timebase of the data acquisi

tion on the link (in µs) is needed for the calculation.

The values can be manually entered or taken automatically from the current configura

tion, either with a click on the buttonor

when the respective link of the ibaFOB card is marked in the module tree.

The devices in the Flex ring and the corresponding data sizes are listed in the grid on

the left. Address 0 corresponds to the Ethernet channel and is not editable.

The section “Flex frame utilization” indicates how much of the bandwidth is still availa

ble. The color of the section changes with the utilization rate:

▪ Green: OK

▪ Orange: bandwidth for the Ethernet channel < 3 kB/s

▪ Red: too much data.

The automatically derived values are a first estimation: The firmware of the individual

devices determines where in the Flex telegram the data are transferred. Filling bytes can

be inserted between the requested data. After the configuration has been applied with a

click onor, the actual data values are displayed on the “Info“ tab.