Communications Between Multiple Roberts Gordon; Ultravac™ Controllers; Figure 18: Communications Between Multiple Controllers - Roberts Gorden UltraVac NEMA 4 Installation Manual

5.5 Communications Between Multiple ROBERTS GORDON

If more than one ROBERTS GORDON
VAC™ Controller is installed in a building, the
controllers' RS-485 communications must be wired in
series. See Page 25, Figure 18. Connect the
RS-485 terminal on controller
terminal on controller # 2 and so on in a daisy chain
fashion. For communication cable requirements,
See Page 12, Section 3.3.5
From a PC, by dialing into the modem on controller
or by connecting to controller
converter or TCP/IP communication module, the

FIGURE 18: Communications Between Multiple Controllers

Central Controller
#
(controller
Dedicated
Outside
Phone Line
(optional)
℡
Modem
Chip
Controller Dip Switch Order (1,2,3,4,5,6,7,8)
Number
1 (Central Controller)
2
3
4
5
6
7
8
9
10
® ULTRA-
# 1 to the RS-485
#
1 via RS-485
Satellite Controller
1)
RS 485
(controller
Wiring
To RJ11
connection on
TCP/IP
Module
(optional)
Ground
Shield
Wiring
to RS 485
Converter
at PC
(optional)
#
Dip Switch 1
Set to ON
(controller
#
address 1)
Values (1=ON, 0=OFF)
10000000
01000000
11000000
00100000
10100000
01100000
11100000
00010000
10010000
01010000
®
ULTRAVAC™ Controllers
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
Controller. See Page 25, Figure 18 for dip switch
settings. Contact Roberts-Gordon or your
ROBERTS GORDON
more than 20 controllers are connected.
# 1
Satellite Controller
#
2)
Join Shields -
Do Not Ground
#
Dip Switch 2
Set to ON
(controller
#
address 2)
Controller
Number
11
12
13
14
15
16
17
18
19
20
SECTION 5: C
® ULTRAVAC™
® independent distributor, if
To Additional
#
(controller 3)
Controllers
Join Shields -
Do Not Ground
Dip Switch
# #
1 and 2
Set to ON
(controller
#
address 3)
Dip Switch Order (1,2,3,4,5,6,7,8)
Values (1=ON, 0=OFF)
11010000
00110000
10110000
01110000
11110000
00001000
10001000
01001000
11001000
00101000
OMMUNICATIONS
25