Continuum NetController Reference Guide

Continuum NetController Reference Guide
Technical Manuals Online! - http://www.tech-man.com
 1998, Andover Controls Corporation
All Rights Reserved
No part of this publication may be reproduced, read or stored in a retrieval
system, or transmitted, in any form or by any means, electronic, mechanical,
photocopying, recording, or otherwise, without prior written permission of
Andover Controls Corporation.
Produced in the United States of America.
Infinity is a trademark of Andover Controls Corporation. All other trademarks
are the property of their respective owners.
Continuum CPU Reference, Version: DRAFT January, 1998
Andover Controls part number: 30-3001-703
The information in this book is furnished for informational purposes only, is
subject to change without notice, and should not be construed as a commitment
by Andover Controls Corporation. Andover Controls Corporation, assumes no
liability for any errors or inaccuracies that may appear in this document.
Related Documents
Continuum Power Supply Reference, 30-3001-702
Continuum I/O System Reference, 30-3001-499
Continuum Display Module Reference, 30-3001-711
Andover Controls Corporation
300 Brickstone Square
Andover, MA 01810
(978) 470-0555
fax: (978) 470-0946
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Radio Interference
This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions in this manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at his own expense.
Note
This digital apparatus does not exceed the Class A limits for radio noise emissions from digital
apparatus set out in the Radio Interference Regulations of the Canadian Department of
Communications.
Avis
Le présent appareil numérique n’émet pas de bruits radioélectriques dépassant les limites
applicables aux appareils numériques de la class A prescrites dans le Règlement sur le brouillage
radioélectrique édicté par le ministère des Communications du Canada.
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FCC Compliance Information for the Continuum Modem
Manufactured by:
Andover Controls Corporation
300 Brickstone Square
Andover, MA 01810
Phone Line Connector: RJ-11 Connector
This equipment complies with FCC rules, Part 68. Behind the upper (hinged) cable-trough door is
a label that contains, among other information, the FCC Registration Number and Ringer
Equivalence Number (REN) for this equipment (to open the cable-trough door, pull outward at the
lower or non-hinged side of the door). If requested, provide this information to your telephone
company.
The REN is useful to determine the quantity of devices you may connect to your telephone line
and still have all of these devices ring when your number is called. In most—but not all—areas,
the sum of the RENs of all devices should not exceed five (5.0). To be certain of the number of
devices you may connect to your line, as determined by the REN, you should call your local
telephone company to determine the maximum REN for your calling area.
If this equipment causes harm to the telephone network, the telephone company may discontinue
your service temporarily. If possible, they will notify you in advance. But if advance notice isn’t
practical, you will be notified as soon as possible. You will be advised of your right to file a
complaint with the FCC.
Your telephone company may make changes in its facilities, equipment, operations, or procedures
that could affect the proper operation of your equipment. If they do, you will be given advance
notice so as to give you an opportunity to maintain uninterrupted service.
If you experience trouble with this equipment, please contact the manufacturer for warranty/repair
information. The telephone company may ask that you disconnect this equipment from the
network until the problem has been corrected or until you are sure that the equipment is not
malfunctioning.
This equipment may not be used on coin service provided by the telephone company. Connection
to party lines is subject to state tariffs.
FCC rules prohibit the use of non-hearing aid compatible telephones in the following applications:
All public or semipublic coin-operated or credit card telephones.
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Elevators, highways, tunnels (automobile, subway, railroad or pedestrian) where a person with
impaired hearing might be isolated in an emergency.
Places where telephones are specifically installed to alert emergency authorities such as fire,
police, or medical assistance personnel.
Hospital rooms, residential health care facilities, convalescent homes,
and prisons.
Workstations for the hearing impaired.
Hotel, motel, apartment lobbies; in stores where telephones are used by patrons to order
merchandise; in public transportation terminals where telephones are used to call taxis, or to
reserve lodging or rental cars.
Hotel and motel rooms. At least ten percent of the rooms must contain hearing aid compatible
telephones; or jacks or plug-in hearing-aid compatible telephones which will be provided to
hearing impaired customers upon request.
Hotel, motel, apartment lobbies; in stores where telephones are used by patrons to order
merchandise; in public transportation terminals where telephones are used to call taxis, or to
reserve lodging or rental cars.
Hotel and motel rooms. At least ten percent of the rooms must contain hearing aid compatible
telephones; or jacks or plug-in hearing-aid compatible telephones which will be provided to
hearing impaired customers upon request.
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DOC Compliance Information for the Continuum Modem
If you order your controller module with the Continuum modem option—the following
requirements of the Canadian Department of Communications apply.
Andover Controls Canada, Inc.
Unit 12
1087 Meyerside Drive
Mississauga, Ontario L5T1M5
The Canadian Department of Communications label identifies certified equipment. This
certification means that the equipment meets certain telecommunications network protective,
operational and safety requirements. The Department does not guarantee the equipment will
operate to the user’s satisfaction.
Before installing this equipment, users should ensure that it is permissible to be connected to the
facilities of the local telecommunications company. The equipment must also be installed using an
acceptable method of connection. In some cases, the company’s inside wiring associated with a
single line individual service may be extended by means of a certified connector assembly
(telephone extension cord). The customer should be aware that compliance with the above
conditions may not prevent degradation of service in some situations.
Repairs to certified equipment should be made by an authorized Canadian maintenance facility
designated by the supplier. Any repairs or alterations made by the user to this equipment, or
equipment malfunctions, may give the telecommunications company cause to request the user to
disconnect the equipment.
Users should ensure for their own protection that the electrical ground connections of the power
utility, telephone lines and internal metallic water pipe system, if present, are connected together.
This precaution may be particularly important in rural areas.
Caution:
Users should not attempt to make such connections themselves, but should contact the appropriate
electric inspection authority, or electrician, as appropriate.
Note—The Load Number (LN) assigned to each terminal device denotes the percentage of the
total load to be connected to a telephone loop which is used by the device, to prevent overloading.
The termination on a loop may consist of any combination of devices subject only to the
requirement that the total of the Load Numbers of all the devices does not exceed 100.
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Limitations DDC de Fixation de Dispositifs Auxiliaires
Andover Controls Canada, Inc.
Unit 12
1087 Meyerside Drive
Mississauga, Ontario L5T1M5
L’étiquette du Département de Communications Canadien identifie un équipement certifié. Cette
certification veut dire que l’équipement satisfait à certaines exigences de sûreté, d’exploitation, et
de protection de réseau de télécommunications. Le Département ne garantit pas que l’équipement
fonctionnera à la satisfaction de l’utilisateur.
Avant d’installer cet équipement, les utilisateurs doivent s’assurer qu’il est admissible d’être
connecté aux installations de la société de télécommunications locale. L’équipement doit
également être installé en utilisant une méthode de connexion admissible. Dans certains cas, le
câblage intérieur d’une société associé avec une ligne unique de service individuel peut être
étendu par un ensemble connecteur certifié (prolongateur téléphonique). Le client doit être
conscient du fait que la conformité aux conditions ci-dessus n’empêcherait pas la dégradation de
service dans certaines situations.
Les réparations à l’équipement certifié devraient être effectuées par un établissement d’entretien
canadien autorisé qui est désigné par le fournisseur. Toutes réparations ou modifications faites par
l’utilisateur à cet équipement ou aux mauvais fonctionnements de l’équipement, peut donner à la
société de télécommunications un sujet de demander que l’utilisateur déconnecte l’équipement.
Les utilisateurs devraient s’assurer, pour leur propre protection, que les connexions électriques
mises à la masse du service électrique, des lignes téléphoniques et du système de tuyaux d’eau
métallique, si présent, sont interconnectées. Cette précaution pourrait être très significative à la
campagne.
Avertissement:
Les utilisateurs devraient ne pas tenter de faire de telles connexions eux-même, mais devraient
prendre contact avec l’autorité d’inspections électriques ou un(e) électricien(ne) convenable.
Note—Le numéro de chargement (load number / LN) assigné à chaque dispositif terminal indique
le pourcentage du chargement total à être connecté à une boucle téléphonique qui est utilisé par le
dispositif, pour empêcher une surcharge. Le raccordement sur une boucle peut consister de
quelque combinaison de dispositifs, assujettis uniquement à l’exigence que le total des numéros de
chargement ne peut pas dépasser 100.
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Contents
Introduction...................................................................... 1
NetController Module Characteristics............................ 3
Mechanical Installation.................................................... 4
DC Power Connection ..................................................... 7
Output Power-I/O Connections....................................... 9
Connection of I/O Modules.......................................................10
Maximum Number of I/O Modules............................................11
Maximum Length of I/O Bus.....................................................11
Connecting Remote I/O Modules with RS-485.........................11
RS-485 Termination Guidelines ...............................................12
Communications Ports.................................................. 16
RS-232.......................................................................................17
Infinet (RS-485) .........................................................................20
Ethernet ....................................................................................22
Modem ......................................................................................26
Status/Control Panel ..................................................... 27
Operation........................................................................ 31
UPS Programming ......................................................... 32
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TCX 865
ÈNTINUUM
NetController
This manual describes the installation, care and use of the Continuum NetController CPU
module.
The Continuum NetController CPU module is part of the Andover Controls Continuum
Ethernet-based intelligent building system. The Continuum system allows you to costeffectively mix and match DIN rail-mounted CPU, power supply, and various
combinations of I/O modules and user interfaces to meet your control and monitoring
needs. This CPU includes an impressive array of features.
The Continuum NetController with flash EPROM is the high-powered Central Processing
Unit (CPU) module and network manager for the Andover Controls Continuum intelligent
building system.
High-Speed Communications
The NetController acts as the system coordinator for the Continuum I/O modules,
providing integrated global control and monitoring, history logging, local and remote
alarming. It communicates with the I/O modules via LON communications and a choice of
RS-485 or free topology bus media. In addition, an optional Ethernet support interface
allows the NetController to communicate with other NetControllers and Continuum
Workstations over a high-speed 10Mb Ethernet Local Area Network (LAN) using the
TCP/IP protocol. Two different Ethernet interface modules are availableyou can choose
either a 10BASE-2 (thin coax) or 10BASE-T (twisted pair) cable media.
Flash Memory
NetController’s 2Mb of flash EPROM (expandable to 4Mb) allows you to download
software revisions over Ethernet or standard telephone lines using a Continuum
workstation. This flash memory feature eliminates the need to perform EPROM changeouts in the field.
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1
Serial Communications
NetController’s four programmable communications ports can be configured as either an
RS-232 or an RS-485 interface to modems, printers, third-party devices, and the Infinity
Infinet field bus network. Andover Controls has developed an extensive library of thirdparty software interfaces, including tie-ins to chiller control panels, fire alarm systems,
emergency generator systems, bar code readers, elevator controls, and video switchers.
Plain English® Programming
The Continuum NetController can be configured to meet the exact requirements of your
application using the powerful Andover Controls Plain English programming language.
Programs are entered into NetController using the Continuum Workstation. The program
is then stored in, and executed by, the NetController.
Software Capabilities
The dynamic memory of the Continuum NetController can be allocated for any
combination of programs, scheduling, alarming, reporting and data logging. Our objectoriented Plain English language with intuitive keywords provides easy operation and
programming. In addition, Plain English ‘s pre-defined and customized functions and
powerful math capabilities reduce programming time for repetitive applications.
Optional Auto-Baud Modem
The optional Andover Controls Continuum modem allows NetController to communicate
and exchange data over standard voice grade telephone lines with speeds up to 14.4K
baud. The modem has built-in data compression and error-correction protocols, autodial/auto-answer capabilities, and is UPS-supported.
UPS Operation
The Continuum NetController incorporates software programmable battery backup that
reduces or eliminates the impact of power failure. On UPS, the NetController CPU can
turn off I/O power to extend battery life and support modem and network operation for up
to four hours. In addition, NetController can go into a low-power mode in which only the
DRAM and real-time clock are powered for up to 72 hours.
Modular Design for Snap-Together Connection
NetController features a sleek, lightweight casing designed for natural convection cooling.
Built-in connectors on either side of the NetController module allow power transmission
from the power supply module and communication signals to the Continuum I/O modules
to feed through easy snap-together connections. Built-in quick-release fasteners at the
back of the module are provided for DIN rail mountingno tools required. These
fasteners also snap into a locked position for panel mounting. The NetController module
is designed for mounting in an optional NEMA 1-sytle Continuum enclosure.
2
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NetController Module Characteristics
The following lists the features included in the Continuum NetController Module:
•
Internal Lithium battery backed Real Time Clock.
•
Watchdog timer.
•
Scan, CPU, Error and Communications status LEDs.
•
Reset Button on the front panel.
•
A 1MB boot Flash/EPROM socket.
•
Ethernet interface with two cable options:
10Base-T
Unshielded twisted pair cable
10Base-2
Shielded thin coaxial cable
•
4MB DRAM, expandable to 8MB.
•
2MB Flash, expandable to 4MB.
•
4K bits serial EEPROM.
•
Optional on-board 14.4 KBPS PPP modem.
•
Controls I/O modules on “I/O BUS” via 5-position male connector located on the
right side of the case. Supports either RS-485 (Andover LON) @ 39k baud or
FTT-10 (LONMark) @ 78k baud communication interfaces.
•
4 Communications ports (excluding I/O BUS):
•
•
COMM1 – RS-232 / RS-485
Infinet network or RS-232
•
COMM2 – RS-485
Infinet network
•
COMM3 – RS-232 / Modem
Internal Modem or RS-232
•
COMM4 – RS-485
Infinet network
During UPS operation, the CPU can turn off the I/O power to extend battery life.
Also, the CPU can go into low-power mode in which only the DRAM and Real
Time Clock are powered.
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3
Mechanical Installation
The NetController module can be mounted to a standard DIN rail or be directly
mounted to a panel using screws. Hardware facilitating both mounting methods is
included as an integral part of the case design.
On the back of each module are molded DIN rail guide fingers. The design allows the
module to easily hook onto and slide along a standard DIN rail.
Special clamps are provided on the case that allow you to lock the module in place,
once it is in position.
4
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These clamps, when extended, provide an alternative method of mounting to the DIN
rail. You can mount the module directly to a panel using the reinforced mounting
holes provided on each of the clamps.
Once the module is in the desired position, it is locked to the rail by pushing the
bottom clamps inward. After the bottom is secure, press the top clamp inward to
complete the operation.
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5
Overall Dimensions
The overall dimensions of the CPU unit are as shown:
6.70''
(170.2 mm)
2.50 ''
(63.5 mm)
6
9.0 ''
(228.7 mm)
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DC Power Connection
The CPU module is powered by an external 24 VDC source. This source is supplied
by one of the three Continuum Power Supply Modules. The input power connector is
located on the left side of the CPU module case and consists of five pins.
The power input connector is a five-pin male assembly that is designed to easily
insert directly into the right side (output) connector of any Power Supply module. The
signals within that connector are as follows:
PIN
5
Function
+24 VDC
4
24 VDC Return
3
Ground
2
Low Battery *
1
AC Power *
5
* Only supplied from PS 120/240 AC 50-U Power Supply
It is assumed that the CPU is directly connected to a power supply module as shown
below:
Power Supply
CPU
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7
The power supply generates a +24 VDC source for the CPU and all other modules in
the system. This power source is located on pins 4 and 5. Pin 3 (Ground) is intended
as an Earth ground connection.
The NetController consumes a maximum of 15 Watts of 24V power.
The UPS version of the power supply (PS 120/240 AC 50-U) provides the CPU with
two power status signals on pins 1 and 2. Their function is as follows:
AC Power is a logic signal that is intended to communicate that AC power is
available. When AC is interrupted and the power supply has switched to UPS
battery mode, this signal presents a logic low. The CPU can use this signal to
start an orderly system shutdown. For more information on the use of this signal,
refer to the section titled UPS Programming.
Low Battery is a logic signal that is intended to communicate that the voltage of
the battery has dropped below 22 Volts. When the power supply has switched to
UPS battery mode, this signal presents a logic high. Should the battery voltage
drop, this signal switches to a logic low. The CPU can use this signal to start an
orderly system shutdown. For more information on the use of this signal refer to
the section titled UPS Programming.
Warning
Make sure that AC power is not applied (switch is off) to the power
supply while you are connecting the CPU module. The module could be
damaged or you could receive an electrical shock that is life-threatening.
8
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Output Power-I/O Connections
The Continuum NetController module includes a connector on the upper right side of
the case for further distribution of the 24 VDC input power and special I/O
communications signals. Continuum I/O modules use these signals for power and
communications as well.
The power-I/O connector is a five-pin male assembly that is designed to easily insert
directly into the left side (input) connector of any I/O module. The signals within that
connector are as follows:
PIN
5
Function
+24 VDC
4
24 VDC Return
3
Ground
2
Comm B
1
Comm A
5
The power supply generates a +24 VDC source for all modules in the system. This
power source is received through the input power connector on the left side of the
CPU module and sent through to pins 4 and 5 of this connector. Pin 3 (Ground) is
intended as a signal ground connection.
Communications between the CPU and I/O modules is through a two signal serial
interface that can be internally configured as either RS 485 or Echelon LON FTT-10.
Pins 1 and 2 (Comm B and Comm A) provide the electrical connection for this
interface.
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9
Connection of I/O Modules
The CPU can directly connect to I/O without the use of cables through a system of
built-in plugs and jacks. All I/O modules include two complementary module interconnectors.
Creating a system is as simple as physically plugging the modules together.
Power Supply
CPU
I/O
I/O
In vertical extended systems, I/O modules may be located above or below other
modules. In this case, cable assemblies bridge the I/O modules together.
The cable necessary to connect the CPU and external I/O modules is five conductor
and would be attached using a plug-in screw terminal connector. Connection
between the modules is one-to-one straightforward wiring as shown below:
5
4
3
2
1
5
4
3
2
1
This connector is available from Andover Controls under part number 01-2050-283;
Wieland manufactures it under part number 25.340.0553.0.
10
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Maximum Number of I/O Modules
There is no operational limit to the number of I/O modules connected to the CPU except
the capacity of the power supply. It is possible to insert auxiliary power supplies into the
I/O bus to increase the number of modules supported.
To determine the maximum number of I/O modules your system can support, subtract the
power requirements for each module from the maximum available from your power
supply.
•
•
•
•
PS 120/240 AC 50 U, UPS power supply provides 35 Watts of power
PS 120/240 AC 50, non-UPS power supply provides 50 Watts of power
PS –48 DC 50, Battery operated power supply provides 50 Watts of power
NetController requires 15 Watts of power
Start by subtracting the NetController from the power available from your power supply.
PS 120/240 AC 50 U
35 – 15 = 20 Watts of available power for I/O
PS 120/240 AC 50
50 – 15 = 35 Watts of available power for I/O
PS –48 DC 50
50 – 15 = 35 Watts of available power for I/O
The power requirements for each I/O module is listed in the Continuum I/O System
Reference Guide ACC # 30-3001-499 and can be found on individual data sheets.
Maximum Length of I/O Bus
A repeater is necessary if the cable lengths get too long. The following are
recommendations regarding cable lengths for both RS-485 and FTT-10 interfaces:
RS-485
FTT-10
Repeater required if length is >2000 ft. (610 m) or after 32 modules.
Repeater required if length is >8858 ft. (2700 m) bus topology
>1640 ft. (500 m) free topology
Connecting Remote I/O Modules with RS-485
The Continuum system allows I/O modules to be placed in a remote location from the
CPU (NetController). However, long cable lengths can cause signal communications
problems on the Power/I-O bus.
When locating an I/O module remotely, it is necessary to add a 120 Ω terminator to the
bus to compensate for the distance. The terminator must be connected at both ends of
the bus for proper operation.
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11
Termination Guidelines
The following are typical installations that indicate the placement of the terminator:
Simple CPU and 1 remote I/O Module:
The I/O Bus that needs to be terminated is the one formed by the cable attaching the
remote module to the CPU. In this case, a terminator resistor is connected across the
communications lines (pins 1 & 2) directly at the NetController and again at the remote
I/O module.
CPU
5
5
4
4
3
3
2
2
1
1
120 Ω
Resistor
12
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120 Ω
Resistor
Remote
I/O
Module
CPU with local and 1 remote I/O Module:
The I/O Bus that needs to be terminated is the one formed by the cable that starts at
the NetController and ends at the remote module. The bus that extends from the
NetController through the local I/O stack does not need termination. In this case, the
terminator resistor is connected directly across the communications lines (pins 1 & 2) at
the NetController and again at the remote I/O module.
CPU
5
4
Local
I/O
5
4
3
3
2
2
1
1
Local
I/O
120 Ω
Resistor
5
4
3
2
1
120 Ω
Resistor
Remote
I/O
Module
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13
CPU with local and several remote I/O Modules:
The I/O Bus that needs to be terminated is the one formed by the cable that starts at
the NetController and ends at the first remote module. The bus that extends from the
NetController through the local I/O stack and the one that starts at the first remote
module and extends through subsequent modules do not need termination. In this
case, the terminator resistor is connected directly across the communications lines
(pins 1 & 2) at the NetController and again at the first remote I/O module.
CPU
5
4
Local
I/O
5
4
3
3
2
2
1
1
Local
I/O
120 Ω
Resistor
5
5
4
4
3
3
2
2
1
1
120 Ω
Resistor
14
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Remote
I/O
Module
Remote
I/O
Module
CPU with two remote modules separated by distance:
The I/O Bus that needs to be terminated is the one formed by both cables on either
end of the first remote I/O module. In this case, the bus begins at the NetController,
flows by the first remote module and ends at the second. The terminator resistor is
connected directly across the communications lines (pins 1 & 2) at the NetController
and again at the last remote I/O module. If the last module is actually a stack of
directly connected I/O modules, the terminator is placed at the first module of the
stack as indicated in the scenario described on the previous page.
CPU
5
4
3
2
1
120 Ω
Resistor
5
5
4
4
3
3
2
2
1
1
Remote
I/O
Module
120 Ω
Resistor
Remote
I/O
Module
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15
Communications Ports
The Continuum NetController module includes connections for communications with
external devices such as printers, Andover Infinet controllers and others. These
connections are called Comm Ports. It also optionally includes Ethernet connections.
The NetController includes four Comm Ports called COMM1 through COMM4 with
the following possible configurations:
COMM1 – RS-232 / RS-485
Infinet network or RS-232
COMM2 – RS-485
Infinet network
COMM3 – RS-232 / Modem
Internal Modem or RS-232
COMM4 – RS-485
Infinet network
Ethernet interface connectors are available in both 10Base-T and 10Base-2 styles.
The physical locations of these ports on the NetController module case are illustrated
below:
Ethernet / BACnet
10Base-T or 10Base-2
Connector
10Base-2
OR
10Base-T
COMM 1
Infinet Connector
16
COMM 4
Infinet Connector
COMM 1
RS-232 Connector
COMM 3
Modem Connector
COMM 2
Infinet Connector
COMM 3
RS-232 Connector
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RS-232
The NetController can be connected to other support devices such as printers for
reports and other PCs used as command terminals. These connections are
accomplished using either of the two RS-232 ports.
Power
Supply
NetController
I/O
I/O
I/O
PC
Printer
Both COMM 1 and COMM 3 include general-purpose RS-232 connections. An
industry standard 8-pin shielded insulation displacement RJ-type termination
connector is provided for the RS-232 interconnection. Although the official
specification defines 25 signals, typically most devices use only eight of these. A full
compliment of these signals are included in both COMM ports.
The following lists the signals provided and their description:
Signal
Abbreviation
Description
Protective Ground
SHLD
Connected to the outer shield of the cable
Signal Ground
RTN
Return for all data signals
Transmitted Data
TD
Serial data originating at the NetController
Received Data
RD
Serial data originating at the connected
device
Data Terminal Ready
DTR
NetController signals it is operating
Data Set Ready
DSR
External device signals it is operating
Clear to Send
CTS
External device signals it is ready for a
transmission from NetController
Request to Send
RTS
NetController signals it wants data from
external device
Data Carrier Detect
DCD
External device (usually a modem) signals
that it is communicating with another device
and is ready for operation
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RS-232 Connections
A standard 8-pin shielded insulation displacement RJ-type termination connector is
provided for the RS-232 interconnection. Protective ground is connected to the outer
shield of the connector that is connected to the shield of the cable. Both COMM 1
and COMM 3 provide the same connector.
These COMM Ports provide both Infinet and RS-232 connections. However, only one
type may be connected at any one time. For example, COMM 1 can be used as an
Infinet connection or an RS-232 connection BUT NOT BOTH!
COMM 3 can be configured as an internal modem or an RS-232 connection. When
the internal modem option is installed, the RS-232 connection is no longer available.
The RS-232 pin connections are shown below:
COMM 1 & 3
RS-232 Connectors
DTR
CTS
DCD
RTS
Ground
RD
DSR
TXD
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Connection to a standard RS-232 device using a cable terminated with an RJ-45 and
25-pin D-type connector are shown below:
RJ-45 Connector
at CommPort
1
2
3
4
5
6
7
8
Standard DB-25 Connector
(25-Pin Male)
DTR (Data Terminal Ready)
CTS (Clear to Send)
DCD (Data Carrier Detected)
RTS (Ready to Send)
Signal RTN (Signal Return)
RD (Receive Data)
DSR (Data Set Ready)
TD (Transmit Data)
20
5
8
4
7
3
6
2
Straight-Through Cable
Use a cable of this type to connect to printers and other devices. Depending on the
device, it may be necessary to reverse the RD and TD connections. This can easily
be accomplished using an adapter called a “null modem”.
RS-232 COMM Port Configuration
After physical connection, the COMM Port must be configured as an RS-232 device
properly through the Continuum workstation. Configuration requires selecting the
type of device to be connected (i.e., Printer, Command, etc.) and setting various
communications-related parameters. Refer to the on-line help system of the
Continuum workstation for detailed information regarding configuration issues.
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19
Infinet (RS-485)
The NetController can be connected to other Andover Controls devices such as local
VAV controllers and display modules. These connections are accomplished using
any of the three Infinet RS-485 ports.
COMM 1, COMM 2 and COMM 4 include Infinet connections. A removable screw
terminal type connector is provided for the interconnection.
The Infinet is a high-performance, token-passing local area network (LAN) designed
for Andover Controls Infinet controllers where more than one controller can be the
network master at a time. It is the interface that all earlier models of the Andover
product line communicate through.
Infinet is physically wired using two conductor shielded twisted pair cable that
transmits data a rate of up to 19.2 KB/sec. Although Infinet has a token-passing data
access system, it can have a combination of daisy-chained bus and star topology.
Cable lengths of up to 4,000-ft (1,219.2-m) daisy chained from Infinet controller to
Infinet controller for every 31 Infinet controllers on one arm of a star are supported.
After 31 nodes or 4,000 ft (1,219.2 m) an InfiLink 200 or InfiLink 210 signal repeater
is required to add more nodes to the network or further extend the cabling. Using an
InfiLink 210 allows you to extend the length of Infinet with fiber optic cable,
recommended for running cable between buildings and through noisy environments.
You can have a maximum of 127 nodes on one Infinet with InfiLink 200 or 210.
For more detailed information on the Infinet network, consult the Andover Controls
Infinet Network Configuration Guide, document number 30-3001-169.
Infinet Cable Specifications
Cables used to form the Infinet should be 24-gauge, single-twisted-pair, tinned,
shielded copper wire. The cable should have nominal impedance of 100 Ω and a
nominal velocity of propagation of 78%. Capacitance of Infinet cable should be below
12.5 pF/ft between conductors and below 22 pF/ft between the conductor connected
to ground and the next conductor.
Recommended:
20
Twisted pair
Twisted Pair Plenum
Brand Rex H 9002
Anixter 9J2401021
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Infinet Connections
COMM Port 1 provides both Infinet and RS-232 connections. However, only one type
may be connected at any one time. For example, COMM 1 can be used as an Infinet
connection or an RS-232 connection BUT NOT BOTH!
The Infinet pin connections are shown below:
COMM 1 & COMM 4
Infinet Connectors
COMM 2
Infinet Connector
+
+
Shield
Shield
The connector for COMM 2 includes an extra connection for the shield.
Connection to the cable is done by inserting a stripped conductor
into the opening on a screw terminal position and tightening the
associated screw to secure it in place.
When the network is connected to more than one device, it is done so in a daisy
chain manner as shown below:
+
Shield
Infinet Cable
- SHLD
Shield
White
White
Black
Infinet Cable
Black
* Wire colors are included for clarity. The colors of your cable may vary. However, make sure that all
Infinet connections are consistent on their connections.
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21
Ethernet
The NetController is connected to workstations and other NetControllers via an
Ethernet interface. These connections are accomplished via one of two physical
methods. Both 10Base-T (RJ-45) and 10Base-2 (Thin coax) connection options are
available. Only one of the methods is installed depending upon your configuration.
The Ethernet is a high-speed CSMA/CD local area network (LAN) that includes all
Andover Controls controllers and workstations and the network software that makes
them communicate.
Ethernet consists of a minimum of two NetControllers or a NetController and a
workstation, usually connected via RG-58 a/u coaxial cable (10Base-2). Data
transmits over the Ethernet at a rate of 10 Mb/sec. Depending on your particular
installation, you may want to use unshielded twisted-pair (10Base-T), or both in a
variety of combinations.
Ethernet can be constructed as a bus or daisy chain or in a combination bus/daisy
chain and star topology called “distributed star” topology.
Andover’s Ethernet implementation is a baseband network, connected by up to
1,635-ft (500 m) of twisted pair cabling or 3,033 ft (925 m) of thin coaxial cable. The
number of nodes on the network depends on the type of cable you use. For each
applicable segment of coaxial cable, you can have 30 nodes. Each segment of
twisted pair cable connects two nodes in an arrangement called a “point-to-point”
configuration.
As with any baseband network, Ethernet is easy to install. It requires only cabling and
interface modules. Depending on cable length, you may need an electronic repeater
and/or cable switching box, to extend the amount of cabling to its maximum, to form a
distributed star topology, and to utilize every type of cable available.
Ethernet Nodes
The two types of nodes on the Andover Ethernet are NetControllers and
workstations. Each controller requires two types of IDs: one you assign strictly for use
by the local network and another that allows the unit to be used on not only your
Ethernet, but on a world-wide Internet.
Configuration of both these identifiers is done through the Continuum workstation.
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Ethernet Connections
The controller module is equipped with an on-board Ethernet interface—complete
with connector—corresponding to one of the following Ethernet media types:
10BASE-2
10BASE-T
Different connectors, cable limitations, and network termination requirements apply to
the Ethernet, depending on which type of option your NetController uses.
10BASE-2 Ethernet
Cable Limitations:
This option provides a standard BNC coaxial cable connector for Ethernet. RG-58
coaxial cable is used to form this type of network. The maximum cable length you
can use without a repeater is 606 ft (185 meters) for an Ethernet with 30 nodes.
10BASE-2 Cable Specifications
Cables used to form the 10Base-2 Ethernet should be RG-58 thin coaxial, shielded
wire. The cable should have nominal impedance of 50 Ω.
Recommended:
Thin Coaxial RG-58 a/u or RG-58 c/u
Brand Rex RG 58
Installation
Plug the end of coaxial ‘RG-58 T’ connector directly into the coaxial connector on the
back of the NetController. Every T connector on the Ethernet has three ends. The
bottom of the T always connects to the coaxial connector on a NetController or
workstation. Each side of the T connector connects either to a coaxial cable that is
connected to other devices or to a coax terminator if this device is at either end of a
line.
One side of T
can connect to
either a coaxial
cable or a
terminating resistor
One side of T
always connects
to a coaxial cable.
Connects to coaxial
connector on NetController
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23
The following illustrates a simple 10Base-2 Ethernet installation with termination:
Terminator
Terminator
10BASE-2 Ethernet requires 50 Ω terminating resistors on the first and last nodes on
the bus. The figure shown below illustrates the connection of the terminating resistor.
Coaxial T
Terminating
Resistor
Coaxial
Connects to Coaxial
Connector on NetController
24
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10BASE-T Ethernet
Cable Limitations:
This option provides a standard RJ-45 connector for Ethernet. Unshielded twisted
pair cable is used to form this type of network (you actually use a cable with dual
twisted pairs—one for the transmit signal, and one for the receive signal). The
maximum cable length you can use between two nodes is 327 feet (100 meters). The
maximum length for the total network is 1,635 feet (500 meters). If you need to use a
cable that exceeds the recommended maximum length, use a network repeater.
10BASE-T Cable Specifications
Cables used to form the 10Base-T Ethernet should be twisted pair wire. The cable
should have a nominal impedance of 100 Ω (85 –111 Ω).
Recommended:
Twisted Pair
Anixter CM-00224TAG-B
Twisted Pair Plenum
Anixter B88102
Installation
Plug the connector of the Ethernet cable into the RJ-45 connector on the
NetController module. You must connect the other end of the cable to an Ethernet
Hub or to another NetController.
NetController to NetController
The TD and RD pairs on the unshielded
twisted pair cable should be crossed if two
controllers are attached at each end of
the unshielded pair link segment.
NetController to Bridge, Hub
Use a straight-through cable to
attach to a bridge or hub
TD+
1
1
TD+
TD+
1
1
TD+
TD-
2
2
TD-
TD-
2
2
TD-
RD+
3
3
RD+
RD+
3
3
RD+
Not Used
4
4
Not Used
Not Used
4
4
Not Used
Not Used
5
5
Not Used
Not Used
5
5
Not Used
RD-
6
6
RD-
RD-
6
6
RD-
Not Used
7
7
Not Used
Not Used
8
8
Not Used
Not Used
7
7
Not Used
Not Used
8
8
Not Used
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25
Modem
When you order the modem option for your NetController, COMM Port 3 includes an
internally connected data modem. All you need to do is connect a telephone line to
the modem using the Modem port. The Modem port accepts a standard RJ-11
telephone jack connector.
Having a modem built into the CPU facilitates connection to remote sites and allows
remote data acquisition.
You can switch from using the modem to using the standard RS-232 connection of
COMM 3 simply by pressing the Modem/RS-232 Override button on the front status
panel.
COMM 3
Modem Connector
TIP
RING
Before the modem can be operated, it must be configured from the Continuum
workstation.
The communications data rate, handshaking options, etc. are set up when defining
COMM 3 as a Modem. Consult the Continuum workstation on-line help files for
specific information.
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Status/Control Panel
Status Indicators
The NetController includes a complete indicator status panel on the front of the module.
Status Panel
Indicators provide status information on communications port use, Ethernet traffic and
NetController internal operation.
The following page lists the various indicators and describes their operation.
Control Push Buttons
There are two control push buttons along with the status indicators located on the front
panel. These buttons provide a hardware reset to the module as well as a way to
disengage the modem from COMM Port 3. The following describes the action of each:
CLEAR MEMORY
The CLEAR MEMORY button erases all the memory in the NetController, including
configuration details, point information, and Plain English programming— this action is
often referred to as a “hard reset.” Clearly, this is not a button you want to press unless
you really mean it—Be careful!
MODEM-RS-232 OVERRIDE
This button alternately engages and disengages the optional internal modem from
operating on COMM Port 3. Pressing the button disengages the modem. Another press
engages the modem, etc.
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27
Indicator Descriptions
The following describes the functions of each of the status indicators on the front panel:
CPU Status Indicators
POWER
The power status indicator is ON if the NetController module is receiving power from
the power supply.
CPU
The CPU (for Central Processing Unit) indicator flashes once every 0.1 seconds if
the NetController module is active—many refer to this indicator as the NetController’s
“heartbeat.”
SCAN
The scan indicator flashes once for every scan executed by NetController.
ERROR
The ERROR indicator remains OFF until an error occurs.
If the NetController fails an internal system test, the ERROR indicator blinks a preset
number of times, then pauses, and repeats the blinking and pausing sequence—this
blinking pattern will persist until you reset the controller. The number of blinks
between pauses identifies the specific problem (as shown in the table below).
ERROR Indicator Blink Rates
Blinks before a Pause
Type of Failure
1 blink
ROM Test Failed
2 blinks or 7 blinks
EnergyNet Test Failed
12 blinks
RAM Test Failed
Note: If an Andover Controls Plain English program disables due to an error, the
ERROR indicator illuminates and stays ON (without blinking)—if this occurs, you can
turn the indicator off by setting the ERRORS system variable to 0 through software.
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CommPort Activity Indicators
There are four sets of CommPort activity indicators—one for each CommPort. The
indicators in this group report on the following:
TD
The TD (for Transmit Data) indicator flashes quickly as data is being transmitted out
through the CommPort.
RD
The RD (for Receive Data) indicator flashes quickly as data is being received through
the CommPort.
Modem Activity Indicators
These indicators are applicable only if your NetController module is equipped with an
internal modem option. The indicators in this group report on the following:
DCD
The DCD (for Data Carrier Detected) indicator is ON if the modem has detected and
synchronized with an external carrier signal from another modem.
DTR
The DTR (for Data Terminal Ready) indicator is ON if the modem has asserted DTR,
or if the device attached to the RS-232/RJ-45 connection for COMM 3 has asserted
DTR.
SELECTED
This indicator is ON if the modem has been enabled via the MODEM-RS-232
OVERRIDE push button. When it is ON, it indicates COMM Port 3 is in Modem
mode. When OFF, COMM Port 3 is a general RS-232 port.
I/O Bus Activity Indicator
This indicator reports on the following:
STATUS
The STATUS indicator flashes rapidly as data is being transmitted out across the I/O
Bus.
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29
Ethernet Activity Indicators
The indicators in this group report on the following:
TD
The TD (for Transmit Data) indicator flashes rapidly as data is being transmitted out
across the Ethernet.
RD
The RD (for Receive Data) indicator flashes rapidly as data is being received from
the Ethernet.
COL
The COL (for Collision) indicator is ON whenever the controller detects data collisions
on the Ethernet.
LINK (Note: this indicator applies only to 10BASE-T Ethernet.)
The LINK indicator is ON whenever the controller detects a valid 10BASE-T Ethernet
link.
POL (Note: this indicator applies only to 10BASE-T Ethernet.)
The POL (for Polarity) indicator is ON if a cable polarity reversal has been detected
on the 10BASE-T Ethernet.
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Operation
Power On
IMPORTANT
Before applying power to the NetController make sure all connections are secure. The
system is not designed to allow you to add I/O modules while the power is on.
The NetController has no power switch. It is assumed that it is connected to an
appropriate Continuum power supply module. To apply power to the system, the power
switch located on the left side of the power supply module case must be depressed.
The switch is a rocker type with each side marked according to function. Pressing the side
marked with the I turns the power on. The POWER status indicator illuminates.
To remove power, press the side marked O.
Once power is applied, any Plain English programs residing in the NetController begin
operating.
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31
UPS Programming
The NetController acts as the intelligence in your system. Plain English programs are
created and then downloaded from the Continuum workstation and are executed by the
CPU within this module. There are several Plain English commands that, when inserted
into your programs, allow the NetController to sense when the system is operating on
battery backup power (UPS operation) and to remove power from critical areas before the
available power is depleted.
The following Plain English keywords and system variables pertain to this UPS operation:
PowerFail
CPUPower
ModemPower
PowerUpTime
Detecting a Power Failure
When the main AC power fails, the UPS version of the power supply (PS 120/240 AC 50
U) signals the NetController that it has lost AC power. You can add a routine to your
program to test for this occurrence using the PowerFail system variable:
If PowerFail is ON then …..
Turning Off Various Subsystems
When a loss of power is detected, it signals that the system is operating using backup
batteries. In order to conserve power during this operation, you have the ability to remove
power from the optional modem and or the CPU itself. The following commands would be
used in both of these scenarios:
If PowerFail is ON then SET ModemPower to OFF ‘ turns off power to the modem
If PowerFail is ON then SET CPUPower to OFF
‘ turns off power to the CPU and all
subsystems including the modem
How Long Was I Down?
The following system variable can be used to keep track of how long it has been since
the last power failure. For a comprehensive example of its use, refer to the description of
the PowerUpTime system variable in the Continuum workstation Help file.
32
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30-3001-703
Continuum CPU Reference Rev DRAFT 1/98
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