CBXi IP Controller |
Installation
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(IF REQUIRED) CONFIGURE A MODBUS CONNECTION
Modbus
connections can be made directly to Modbus IP devices on an RTU trunk connected to the CBXi,
or over IP to RTU devices attached to a separate router.
Note
: A
CBXi
cannot have both
BACnet
MS/TP
trunk and a
Modbus RTU
trunk simultaneously, but a
CBXi
controller that has an
MS/TP
subnet can read and write points to
Modbus
devices over
IP
.
Configuring a Modbus RTU connection
If a
Modbus
connection is to be through the
Modbus RTU
port (RS485 Port 1),
In the controllers’ Web UI > RS
485 Port
>
Configuration
page, set
Protocol
to
Controller Modbus
:
In
CXpro
ᴴᴰ
,
open the
Strategy
drawing for the
CBXi
.
With the
Strategy
open, right-click on the
CBXi
in the
Site Tree
, and select
Configure Modbus Devices
to open
the
Modbus Configuration
dialog: