Roberts Gorden 10081601NA Rev H 12/11 service manual Communications, Modem Location

ROBERTS GORDON® ULTRAVAC™ CONTROLLER INSTALLATION MANUAL

SECTION 5: COMMUNICATIONS

One ROBERTS GORDON® ULTRAVAC™ Controller per building (called the "central controller") must have equipment for remote communications to a PC. This equipment consists of either a modem chip, an RS-485 converter, or a TCP/IP communications module.

For remote on-site and off-sitecontrol and system status viewing, the central controller (controller #1) is fitted with a modem chip. See Page 30, Section 5.1.

If only remote on-sitecontrol and system status

viewing is required, two controller communications interface devices are available: an RS-485 converter or a TCP/IP communication module.

An RS-485 converter is installed at a single PC, this PC can interface with any controller on the network of ULTRAVAC™ controllers. The RS-485 converter at the PC is wired directly to controller #1 using

shielded twisted pair communication wiring. See Page 31, Figure 16.

To interface with ULTRAVAC™ controllers through a Local Area Network (LAN), a TCP/IP Communication module is installed at controller #1. Controller #1 is wired to the LAN by an Ethernet cable. See Page 32, Section 5.3. Any computer on the LAN that has ULTRAVAC™ software installed can communicate with the controllers. Appropriate precautions must be taken to protect the Ethernet wiring from any possible electrical interference (noise) caused by surrounding machinery or equipment.

If multiple ULTRAVAC™ controllers are being used, the additional controllers communicate to controller #1 through communication wiring arranged in-series from one controller to the next. See Page 35, Section 5.5.

FIGURE 15: Modem Location

Control Board of the

Dip Switch #1

Central Controller

Set to ON

NC C NO NC C NO NC C NO NC C NO L2 L1

PWR

OUT IN G +32 +5 G G

G REF -

+

REF

-

+

-

+

-

+ - +

-

+

1 2 3 4 5 6 7 8

24VAC

RS232 DIRECT

OUT

IN

4

3

2

1

AUX POWER

RS485 COMM

METER INPUTS

Modem

RESET

OH CD RI

Chip

ADDRESS

CPU

UNIVERSAL INPUTS

Installed

8

7

6

3

2

1

Modem Chip

NC C NO NC C NO NC C NO NC C NO

5

4

-

+

-

+ -

+ -

+ - + -

+ -

+

-

+

OUT

499 OHM

IN

OFF

10VDC

ON

Phone Cable Connection

Description

Part Number

Modem Chip

10080142

5.1Dedicated Phone Line for Central Controller Modem

The Central Controller is fitted with a modem chip. To use the modem, the controller must have a phone line for modem communications. Install a phone line near the location of the Central Controller. The phone cable is plugged into the phone connection in the corner of the control board. See Page 30, Figure 15. If the modem option is not used for everyday commu- nication to the controller(s), it can still be plugged into a phone line for troubleshooting or programming assistance. Contact your local ROBERTS GOR- DON® independent distributor for details.

If multiple ULTRAVAC™ controllers are being used, the additional controllers communicate to controller #1 through RS-485 communication wiring arranged in-series from one controller to the next. See Page 35, Section 5.5. This allows multiple controllers to be controlled from a PC through a single communication package at the central controller.

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