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To attach I/O expanders
TruVu™ MPC Processor
CARRIER CORPORATION ©2021
Installation and Start-up Guide
All rights reserved
14
To wire the TruVu
TM
MPC I/O expander to the I/O Bus port
Use ARC156 wiring (22 AWG, low-capacitance, twisted, stranded, shielded copper wire) to wire the TruVu
TM
MPC
I/O expander to the controller. Do not exceed 1000 feet (305m) total wire length for the I/O bus.
WARNING
Do not apply line voltage (mains voltage) to the expander's ports and terminals.
1
Turn off the controller's and expander's power.
2
Wire the expander's
I/O Bus
port to the same port on the controller.
NOTES
○
To use more than one expander, wire their
I/O Bus
ports together in a daisy-chain configuration. The
controller must be the first device on the expander network.
○
Use the same polarity throughout the network segment.
3
On the last expander on the I/O bus, set the I/O Bus
End of Net?
switch to
Yes
to apply network termination
and bias.
NOTE
The controller has built-in I/O bus network termination and must be the first device on the expander
network.
4
Mount the TruVu
TM
MPC I/O expander to a DIN rail or using screws as described in steps 3 and 5 above.
5
Turn on the controller's and expander's power.
To attach MPC Open XPIO expanders
Use ARC156 wiring (22 AWG, low-capacitance, twisted, stranded, shielded copper wire) to wire the MPC Open
XPIO expander to the controller. Do not exceed 100 feet total wire length. See the
Open Controller Network Wiring
Guide
for complete wiring specifications.
Wire the TV-MPCXP's
Xnet
port to the MPC Open XPIO expander's
Xnet Remote Expansion
port. To use more than
one expander, wire their
Xnet Remote Expansion
ports together in a daisy-chain configuration.
The TV-MPCXP has built-in Xnet termination and must be the first device on the expander network. Add
termination to the last MPC Open XPIO expander by placing the
Term
jumper (if provided) in the up position. If the
MPC Open XPIO expander does not have a
Term
jumper, you must add external network termination.
NOTE
You must set the Xnet baud rate to 500 kbps in the i-Vu® interface on the driver's
I/O Bus and Xnet
Expanders
page. See
Adjusting TV-MPCXP driver properties
(page 33).
Содержание TruVu MPC
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