Festo CPX-M-FB20 Manual page 13

Contents and general safety instructions
Term/abbreviation
CMD software
FOC
Ident. code
Module
Peripheral fault (PF)
Process data
Remote bus
Tab. 0/3: Interbus-specific terms and abbreviations
Festo P.BE-CPX-FB20/21-EN en 1202a
The following Interbus-specific terms and abbreviations are
used in this manual:
Meaning
Parameterisation, commissioning and diagnostic software for slaves on
the Interbus (configuration, monitoring, diagnosis).
Fibre-optic cables
By means of the Ident code (in brief: ID code), the module ascertains the
type and the process data length of all the slaves.
The module is the central device for checking the Interbus data ring.
It exchanges the data transported serially in the data ring with the
higher-order controller or computer system and the lower-order Interbus
slaves in both directions acyclically or cyclically.
Faults in the peripherals of Interbus slaves are shown by means of
peripheral faults (dependent on slave), e.g.
– load voltage failure
– short circuit at the outputs, etc.
The peripheral fault is a common fault message which does not contain
any module-specific information.
I/O data from the Interbus slaves transmitted cyclically via the Interbus,
e.g. for:
– light barriers, sensors
– valves, fuses
– diagnostic I/Os
The remote bus bridges long distances within an Interbus system
(main string). With baud rates of 500 kBd and 2 MBd it can be up to
12.8 km long (from the module to the last connected remote bus slave).
Individual segments can be up to 400 m long.
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