The input modules process the input signals
(e.g. from sensors) and transmit these signals
via the INTERBUS to the controller. The output
modules are universal electrical outputs and
control small current-consuming devices with
positive logic, e.g. further valves, lights etc..
Additional I/O modules for more specific applica-
tions are also available.
The pneumatic modules are used for the
following:
• common channels for supply and exhaust air
• electrical signals from all solenoid valve coils.
Work connections 2 and 4 are supplied for each
valve location on the individual pneumatic mo-
dules.
By means of the common channels on the
pneumatic end plate, the valves are supplied
with compressed air and both the exhaust air
and the pilot air from the valves are vented.
Further modules for air supply are also available,
in order that different work pressures can be
used or in order that either MIDI/MAXI valves or
ISO valves can be fitted on a terminal.
Further information on their use is to be found in
the Pneumatics Manual for the valve terminal.
VIFB6 - 03/05 1. System summary
1-10
9809c
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