Installation manual

SECTION 5: COMMUNICATIONS
25
5.5 Communications Between Multiple ROBERTS GORDON
®
ULTRAVAC™ Controllers
If more than one ROBERTS GORDON
®
ULTRA-
VAC™ Controller is installed in a building, the
controllers’ RS-485 communications must be wired
in series. See Page 25, Figure 21. Connect the
RS-485 terminal on controller
#
1 to the RS-485
terminal on controller
#
2 and so on in a daisy chain
fashion. For communication cable requirements,
See Page 11, Section 3.3.5
From a PC, by dialing into the modem on controller
#
1 or by connecting to controller
#
1 via RS-485
converter or TCP/IP communication module, the
system status and settings can be viewed for any of
the controllers on the network.
The control board identification dip switch must be
set on each ROBERTS GORDON
®
ULTRAVAC™
Controller. See Page 25, Figure 21 for dip switch
settings. The dip switch allows for up to 32 controllers
to be connected together on the same network. For
dip switch settings on controller #12 - #32, contact
Roberts-Gordon or your local independent
Roberts-Gordon distributor.
FIGURE 21: Communications Between Multiple Controllers
RS 485
Wiring
Dip Switch
#
2
Set to ON
Dip Switch
#
1
Set to ON
Modem
Chip
Dip Switch
#
1 and
#
2
Set to ON
Central Controller
(controller
#
1)
Satellite Controller
(controller
#
2)
To Additional
Controllers
Wiring
to RS 485
Converter
at PC
(optional)
Dedicated
Outside
Phone Line
(optional)
'
Satellite Controller
(controller
#
3)
1 2 3 4 5 6 7 81 2 3 4 5 6 7 81 2 3 4 5 6 7 8
To RJ11
connection on
TCP/IP
Module
(optional)
Controller
Number
Dip Switch Order (1,2,3,4,5,6,7,8)
Values (1=ON, 0=OFF)
11 11010000
12 00110000
13 10110000
14 01110000
15 11110000
16 00001000
17 10001000
18 01001000
19 11001000
20 00101000
Controller
Number
Dip Switch Order (1,2,3,4,5,6,7,8)
Values (1=ON, 0=OFF)
1 (Central Controller) 10000000
2 01000000
3 11000000
4 00100000
5 10100000
6 01100000
7 11100000
8 00010000
9 10010000
10 01010000