Crestron
CEN-IO
Ethernet Input/Output Module
Example: A voltage source is placed on versiport 1. <MinChange1> is set to 10 via
an Analog Initialize symbol. The <ain1> input does not exhibit any change until it
actually changes by 10. If the currently reported value is 500, for example, a new
value is not reported until it changes to 510 or 490.
Each signal <MinChange1> through <MinChange8> has a corresponding feedback
<MinChange1-f> through <MinChange8-f> that is driven by the CEN-IO. Feedback
is provided from the CEN-IO for these values since another non-Cresnet device on
the network may talk directly to the CEN-IO and modify its values.
Relay Inputs: <relay1> through <relay8> and Relay Outputs:
<relay1-f> through <relay8-f>
The CEN-IO symbol definiton can control the eight relays on the CEN-IO and
obtain true feedback as to the state of the relays in the CEN-IO.
The inputs to the symbol <relay1> through <relay8> allow the SIMPL program to
turn the relays on and off. A high signal on any of these lines turns on the respective
relay. A low signal turns the relay off. For example, if <relay1> has a high signal,
then the relay turns on.
Since the relay states may be changed by a source outside of the Cresnet system, the
symbol outputs <relay1-f> through <relay8-f> allow the Cresnet system to monitor
the state of the relays in the CEN-IO. If an external source changes the state of the
relay to closed, then the respective line is driven high. If an external source changes
the state of the relay to open, then the respective line is driven low. For example, if
an outside source closes relay 2, <relay2-f> goes high.
Physical Description
The CEN-IO is housed in a black enclosure with silk-screened labels on the front
and rear panels. On the front of the unit there are 21 LEDs for indicating the unit’s
current status. All connections, except for one Ethernet port, are made on t he back
of the unit. Refer to the physical views shown on the next page. There are four
rubber feet on the base of the unit for stability and to prevent slippage when the unit
is stored on a surface or stacked. Up to two units can be rack mounted with an
optional 19.00 inch (48.26 cm) rack mount kit (sold separately).
Operations Guide - DOC. 5718
Ethernet Input/Output Module: CEN-IO
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