CBV-2U4-3T(-N) |
Installation Overview
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CONFIGURING THE CBV-2U4-3T(-N) FOR BACNET
COMMUNICATIONS
The
CBV-2U4-3T(-N)
is shipped with the following default settings:
MS/TP Address:
01
BACnet Instance Number
17101
MS/TP Baud Rate
38,400 bps
Serial to PC Baud Rate
9600 bps
To communicate to other MS/TP devices on a BACnet MS/TP network, the MS/TP address must be set to a
unique address within the MS/TP subnet. Where possible, there should be no gaps between MS/TP addresses.
The BACnet
Instance Number
must also be unique for the BACnet site. The MS/TP baud rate must match on all
devices on the MS/TP subnet. The PC Baud Rate should be left at the default value of 9600 bps.
The controller’s BACnet MAC address can be set either electronically (USB or BACnet) or manually using the 8
-
way
DIP switch
.
•
Manual setting for ease of replacement
: Setting the 7-way
DIP switch
to an address between 1 and 254,
and then cycling the power, will force the controller to update its MAC address to match the
DIP
settings.
To replace a manually addressed controller in the field simply copy the
DIP switch
setting of the controller
you are replacing.
•
Electronic setting for remote configuration
: Setting the 7-way
DIP switch
to all zeros will allow the MAC
address to be set electronically either locally by
USB
or remotely over
BACnet
. It is also possible to use
manual setting for initial commissioning, and then cycling the power to force the controller to update its
MAC address to match the
DIP
settings. To enable subsequent electronic configuration, set the
DIP switch
to all zeros. The controller will retain the manually set address until it is electronically overwritten.
The
DIP
switch can be used to set the
MS/TP
address when the device is first powered on.
•
The address is set in binary, from
1
(
0000001
) to
127
(
1111111
).
•
A switch moved to the left (towards the ‘ON’ mark) represents
1
, moved to the right represents
0
.
•
The bottom-most switch is the least-significant bit, the switch on the top is the most-significant bit.
0000001
Address 1
1000000
Address 64
1011000
Address 88
1111111
Address127
0000000
Software Selectable*
For convenience,
Appendix: List of DIP switch settings
on page 71 shows a diagram for every address
.
*Note
: If the
DIP
switch is set to all zeros, the device will retain the address to which it was last set, but that address
can be subsequently overridden by software.
If no address had previously been set (e.g. when the device is received from the factory), then a device that is
powered-on with the
DIP
switch set to all zeros will use the last 2 digits of its serial number as its initial
address.
Содержание CBV-2U4-3T
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