The boards ibaFOB-io-PCI, ibaFOB-io-S, ibaFOB-4i-PCI, ibaFOB-4i-S, ibaFOB-4o

and ibaFOB-OF-Link are fiber optic communication cards which are used to connect

a stan-dard PC to the iba peripheral devices such as ibaPADUs, ibaNet750-BM

devices and ibaLink signal modules (SM).

As far as the following text does not refer to a particular card, the boards are

referred to as ibaFOB boards.

The unique peripheral I/O concept based on the ibaFOB boards, features

characteristics otherwise unknown on standardized field buses such as:

 Full deterministic transmission profiles for all fiber optic buses and connected

devices (1ms).

 Internal and/or external synchronization on the bus, even for more than one

bus with programmable cycle times between 1.0 and 9.9 ms in steps of 100 μs.

 Deviation less than 2 μs between several busses (external synchronization)

 The iba fiber optic transmission standard integrates not only A/D converters

(ibaPADU) but a huge variety of PLC interfaces and hence allows the realization

of heterogene-ous measuring and I/O topologies.