Lonworks - Roberts Gorden CORAYVAC Installation Manual

®
ROBERTS GORDON CORAYVAC
EIA-485, 2-wire
Wiring specifications
• A dedicated 24 AWG to 18 AWG twisted pair wire
(EIA-485).
• 2000' (610 m) for 76.8 kbps.
• 3000' (914.4 m) for 9600 bps, 19.2 or 38.4 kbps,
before needing a Repeater.
• Devices should be daisy chained and not star
wired.
• If the controller is at either end of a network seg-
ment, connect a terminating resistor (P/N
10061018) to the controller.
NOTE: Use the same polarity throughout the
network segment.
6. Turn on power to control board.
Verify accuracy of the following:
Hardware settings for speaking N2:
• Baud rate DIP switches 4 and 5
• Protocol DIP switches 6, 7, and 8
• Jumpers set to half duplex (2-wire) and EIA-485
• Proper connection wiring
• BAS is configured to speak 2-wire EIA-485 to the
controller.
• BAS is sending requests to the proper slave
address of the controller.
• Unique rotary address switches 1 – 99. If control-
lers have duplicate addresses, network communi-
cation can be lost.
102
®
M H C C
ODULATING EATING ONTROL
I M
ONTROLLER NSTALLATION ANUAL
NOTES:
• If RX LED is solid, then the terminations are incor-
rect.
• If the network has greater than 32 devices or
exceeds 2,000' (609.6 m), a Repeater should be
installed.
• If a controller begins or ends a network segment,
a terminating resistor may be needed.
• The controller recognizes physical changes (DIP
switches, rotary switches and jumpers) upon
power up.

12.8 LonWorks

LonWorks (local operating network) is a networking
platform specifically created to address the needs of
control applications. A separate LonWorks card (P/N
10060160), photo below, is required for LonWorks
communication.
NOTE: For connecting a controller to LonWorks pro-
tocol, contact Roberts-Gordon LLC to get a mapped
clipping file of controller program.
To set up the Modulating Controller for
LonWorks Option Card
1. Turn off power to control board.
2. Using the rotary switches, set a unique address.
3. Set the Comm Selector DIP Switches 1 - 8 for
baud rate, port number, wiring, and protocol.
• Set the Communication mode for Port 2 using DIP
Switch 3