RS-232/485 Converter CON-768 (Rev 3.3) Installation & Application Guide
Page 4 of 7 Document Edition 1.4
Indicators
LED Function Description
POWER/
STATUS
Indicates that the RS-485/232
Network Converter (CON-768) has
power applied.
This green LED is on steady for normal operation
and blinks during auto configuration.
Tx
(RS-485)
Indicates that the RS-485 port is
broadcasting on the RS-485 network.
This green LED will blink quickly in a regular
repeating pattern.
Rx
(RS-485)
Indicates that the RS-485 port has
received information from a
controller on the RS-485 network.
This red LED will blink quickly in the same
regular repeating pattern as the Tx LED provided
all controllers are communicating. The blinking of
the Rx LED will lag slightly behind the blinking of
the Tx LED.
Mounting
The RS-232 (9-pin connector) port on the CON-768 plugs directly into the PC 9-pin serial port. The RS-485
(RJ11) port plugs directly into the RJ11 connector of the Service Tool Port on the ORCA controller.
Power
The CON-768 is powered by24Vac supplied through the service tool port of the Delta controller it is connected
to.
Communications Setup
ORCAview Login through the Service Port
NOTE: In order to use the new converter with ORCAview on a 3.22 site you require 3.22a OWS
Build 556 (or newer) and on a 3.30 site you require 3.30 OWS Build 1063 (or newer). In these
builds of OWS the V2 Micronet protocol is no longer supported so you cannot use the CON-768 to
login to a V2 Micronet Network of controllers.
Run ORCAview and when the login dialog is displayed on the screen enter your Username and Password, then
click on the Advanced tab. Ensure the connection method is properly configured by verifying these settings:
• C
ONNECT USING: Serial (BACnet MS/TP)
• COM P
ORT: COM1 (or whichever port the converter is connected to)
• B
AUD RATE: Set the Baud Rate to match the network speed the device with the Service Port jack is
communicating at on its network. LINKnet networks should be set to 76800 bps, and MS/TP
networks default to 76800 bps (but could be set to something else as required).
• ADDRESS: The address field on the MS/TP login dialog is the MS/TP Mac address that the CON-
768/OWS will use to identify itself on the network. This number defaults to 127 and typically will not
need to be changed. It must be a value between 1-127 and unique on the MS/TP network segment the
converter is connected to. Since Delta typically only uses Mac address ranges 1-99 for panel
addresses using the 100-127 range for the OWS/converter will help reduce the possibility of creating
duplicate network addresses for a site.
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