Festo VIFB-02 Series Manual page 16

VIFB8 – 02
9706
2. System structure
The Allen-Bradley RIO link creates data com-
munication between the controller and the slaves
(e.g. valve terminal/valve sensor terminal or
remote I/O) distributed throughout the system.
Baud rates up to 57.6K, 115.2K or 230.4 K Baud
can be set.
The valve terminal as a decentralized output
device proceses the RIO signals transmitted and
controls the actuators which are connected. The
valve terminal is supplied with current via an ex-
ternal power unit (AC 115V/230 V/DC 24V).
The valve sensor terminal as a decentralized
input/output device functions like a valve termi-
nal. It also processes up to 30 inputs for valve
position sensors.
The actuators produce motion via air controlled
by the valve terminal/valve sensor terminal.
The sensors provide digital valve position infor-
mation and pass this on to programmable con-
troller through the terminal.
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