Honeywell CONTROLBUS QS7800B Operation manual

PRODUCT DATA
65- 0227- 2
® U.S. Registered Trademark
Copyright © 2002 Honey ell • All Rights Reserved
QS7800B Network Interface ControlBus™
Module for Multi-Dropping
7800 SERIES Relay Modules
APPLICATION
The QS7800B Net ork Interface ControlBus™ Module allo s
remote monitoring and diagnostics of multi-dropped 7800
SERIES Relay Modules.
FEATURES
• Up to six ControlBus™ Modules per Network Interface
Unit. (Maximum of 222 multi-dropped su networks per
Q7700 Network Interface Unit).
• Up to 31 multi-dropped 7800 SERIES su networks per
QS7800B ControlBus™ Module without using an
RS-485 repeater.
• Up to 61 multi-dropped 7800 SERIES su networks per
QS7800B ControlBus™ Module using an RS-485
repeater.
• Local and remote annunciation of 7800 SERIES Relay
Module faults.
• Personal computer user interface.
• Microsoft® Windows™ ased Com ustion System
Manager® user interface.
• Modular construction.
Contents
Application ........................................................................ 1
Features ........................................................................... 1
Specifications ................................................................... 2
Installation ........................................................................ 2
Ordering Information ........................................................ 2
Wiring ............................................................................... 3
Building a Multi-Drop Net ork .......................................... 6

QS7800B NETWORK INTERFACE CONTROLBUS™ MODULE FOR MULTI-DROPPING 7800 SERIES RELAY MODULES
65-0227—2 2
ORDERING INFORMATION
When purchasing replacement and modernization products from your TRADELINE® holesaler or distributor, refer to the
TRADELINE® Catalog or price sheets for complete ordering number.
If you have additional questions, need further information, or ould like to comment on our products or services, please rite or
phone:
1. Your local Home and Building Control Sales Office (check hite pages of your phone directory).
2. Home and Building Control Customer Relations
Honey ell, 1885 Douglas Drive North
Minneapolis, Minnesota 55422-4386
In Canada—Honey ell Limited/Honey ell Limitée, 35 Dynamic Drive, Scarborough, Ontario M1V 4Z9.
International Sales and Service Offices in all principal cities of the orld. Manufacturing in Australia, Canada, Finland, France,
Germany, Japan, Mexico, Netherlands, Spain, Tai an, United Kingdom, U.S.A.
SPECIFICATIONS
Models: QS7800B1000 Net ork Interface ControlBus™
Module for use ith the S7810B Multi-Drop S itch Module
and Q7700A1014 and Q7700B1004 Net ork Interface
Unit.
Electrical Ratings:
ControlBus™ Communication.
Current Dra : 75 mA.
Electrical Connectors: ControlBus™ Three-Prong Electrical
Connector.
Environmental Ratings:
Ambient Temperature:
Operating: 32°F to 130°F (0°C to 54°C).
Storage: -30°F to +150°F (-34°C to +66°C).
Humidity: Operating 85 percent relative humidity, continuous,
noncondensing.
Vibration: Continuous 0.5G.
Enclosure: NEMA 1.
Dimensions: See Fig. 1.
Weight: 8 oz (unpacked).
Accessories:
221237/1698 Cover Assembly, Q7700 Net ork Interface Unit.
221240/1698 Cover Assembly, Q7700 Electrical Enclosure,
Net ork Interface Unit.
202433 Slot Inserts, ControlBus™ Slots Base Unit.
200603 ControlBus™ Electrical Connector.
Approvals:
Under riters Laboratories Inc: File No. MP268, Guide No.
MCCZ2.
Canadian Standards Association: LR80141 .
Federal Communications Commission: Part 15, Class A Emis-
sions, Part 68.
FCC: Registration Number HS92SJ-10735-DT-E.
Canadian Department of Communication: CS-03, Certification
Number 573-3459A.
IMPORTANT
This e uipment complies with the re uirements in
part 15 of FCC rules for a Class A computing device.
Operation of this e uipment in a residential area can
cause unacceptable interference with radio and
television reception that re uires the operator to take
whatever steps are necessary to correct
interference.
Warning: This equipment generates, uses, and can radiate
radio frequency energy, and if not installed and used in
accordance ith the Instructions Manual, may cause
interference ith radio communication. It has been tested and
found to comply ith the limits for a Class A computing device
pursuant to Subpart J of Part 15 of FCC Rules, hich are
designed to provide reasonable protection against such
interference hen operated in a commercial environment.
Operation of this equipment in a residential area is likely to
cause interference, in hich case, user at their o n expense
ill be required to take hatever measures may be required
to correct the interference. Any unauthorized modification of
this equipment may result in the revocation of the o ner’s
authority to continue its operation.
Canadian EMI: This digital apparatus does not exceed the
Class A limits for radio noise emission from digital apparatus
set out in the Radio Interference Regulations of the Canadian
Department of Communications.
Le présent appareil numérique n’émet pas de bruits
radioélectriques dépassant les limites applicables aux
appareils numériques de la Classe A prescrites dans le
Règlement sur le brouillage radioeléctrique édicté par le
ministère des Communications du Canada.
INSTALLATION
When Installing this Product...
1. Read these instructions carefully. Failure to follo them
could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on the
product to make sure the product is suitable for your
application.

QS7800B NETWORK INTERFACE CONTROLBUS™ MODULE FOR MULTI-DROPPING 7800 SERIES RELAY MODULES
3 65-0227—2
3. Installer must be a trained, experienced service
technician.
4. Check out the product after installation, as provided in
the Q7700 Net ork Interface Unit instructions, form 63-
2278 and S7810B instructions, form 65-0228.
5. Make sure that only the manufacturer makes repairs.
6. If trouble develops, disconnect the equipment from the
modem and determine the cause of the fault.
Reconnect only hen the problem is corrected.
WARNING
.Electrical Shock Hazard.
Can cause severe injury, death or equipment
damage.
Disconnect po er supply before beginning installation
to prevent electrical shock and equipment damage.
More than one po er supply disconnection can be
involved.
Humidity
Install the Net ork Interface Unit here the relative humidity
never reaches the saturation point. The Net ork Interface
Unit is designed to operate in an 85 percent relative humidity
continuous noncondensing moisture environment.
Condensing moisture can result in improper operation.
Vibration
Do not install the Net ork Interface Unit here it can be
subjected to excessive vibration in excess of 0.5G continuous
maximum vibration.
Weather
The Net ork Interface Unit is not designed to be eather
tight. When installed outdoors, provide protection for the
Net ork Interface Unit.
Mounting the Network Interface Plug-in Card
For installation dimensions, see Fig. 1.
1. Mount the ControlBus™ Module in the Net ork
Interface Unit (see Fig. 2). Do not mount the Net ork
Interface Unit ith the Interface ControlBus™ Module
edge connector slots facing do n.
2. Insert the ControlBus™ Module ith the electrical
connector facing out from the Net ork Interface Unit.
3. Grasp the ControlBus™ Module and align the plug-in
edge card ith the connector in the bottom of the
Net ork Interface Unit.
4. Firmly insert the ControlBus™ Module into the Net ork
Interface Unit.
5. Select a location that can support the Net ork Interface
Unit. Be sure to allo clearances for servicing, installing
and removing the iring compartment cover, Net ork
Interface Unit cover, electrical connectors and
ControlBus™ Modules.
a. Allo for an additional 2-1/2 inches (64 mm)
minimum belo the Net ork Interface Unit for
electrical connector installation.
b. Allo for an additional 1-1/2 inches (38 mm)
minimum on each side for electrical housing cover
insertion and iring.
6. Remove the ControlBus™ Module using the ire loop;
grasp the ControlBus™ Module firmly and pull the
module from the Net ork Interface Unit.
WIRING
Wiring Requirements
WARNING
Electrical Shock Hazard.
Can cause severe injury, death or equipment
damage.
1. Wiring must comply ith all applicable codes,
ordinances and regulations.
2. Refer to Fig. 6 for proper system iring.
3. Do not plug or unplug any Net ork Interface Unit
ControlBus™ Module or electrical connectors ith
the po er on. Make sure that po er is off to protect
against equipment damage.
1. All iring must comply ith all applicable electrical
codes, ordinances, and regulations.
2. Recommended ire size and type for ControlBus™
communication is shielded 22 AWG t isted pair cable
(Belden 8723 or equivalent). Terminal identification
numbers and letters are sho n in Table 1.
Ta le 1. QS7800B and S7810B Terminals
and Identification.
3. Wire Routing:
a. Do not route the ControlBus™ cable in conduit ith
line voltage circuits.
b. Do not route the ControlBus™ cable close to the
ignition transformer.
c. Route the ControlBus™ cable outside of conduit if
properly supported and protected from damage.
d. Route the ControlBus™ cable so that all devices are
connected in a daisy chain configuration. See Fig. 6.
4. Maximum ire lengths can be 4000 ft (1219 m) for the
ControlBus™ RS-485 interface under ideal conditions.
Procedure
1. Refer to Fig. 6 for proper iring.
2. Be sure that po er is removed from the control panel by
opening the main disconnect before beginning iring to
the electrical connectors. More than one disconnection
can be involved.
3. Select the location of the Net ork Interface Unit to be
mounted:
Signal QS7800B Terminals S7810B Terminals
Multi-Drop Data+ a 7
Multi-Drop Data- b 8
Multi-Drop Ground c 6

QS7800B NETWORK INTERFACE CONTROLBUS™ MODULE FOR MULTI-DROPPING 7800 SERIES RELAY MODULES
65-0227—2 4
a. Near a phone line.
b. Within 4000 ft (1219 m) of all Relay Modules
connected to the Net ork Interface Unit.
c. Within 50 ft (15 m) of the personal computer
connected to the 25-pin RS-232 port of the Net ork
Interface Unit.
4. Mount the Net ork Interface Unit and insert the
ControlBus™ Module into the Net ork Interface Unit
slot, see Fig. 2 and 5.
•Route the ControlBus™ cable so that all devices are
connected in a daisy chain configuration. It is
recommended that the QS7800B ControlBus™ Module be
at one end of the daisy chain.
5. Connect L1, L2 and Ground (GND) to the pigtails
(Q7700A only).
6. Insert the plug-in cards into the open slots of the
Net ork Interface Unit, starting ith slot one.
7. Install the covers, po er iring compartment and
Net ork Interface Unit.
8. Connect the serial port of the modem to the 9-pin
RS-232 connector of the Net ork Interface Unit (see
Fig 4).
9. Connect the serial port of the personal computer to the
25-pin RS-232C port on the Net ork Interface Unit for
local personal computer application, see Fig. 3.
10. Do not exceed 600 mA current dra , six card maximum,
total capacity of the plug-in cards. Refer to the
ControlBus™ Module device label and this specification
for individual loads.
11. Recheck all iring ith Fig. 6.
12. Restore po er to the Net ork Interface Unit.
Fig. 1. QS7800B Network Interface ControlBus™ Module
dimensions in in. (mm).
Fig. 2. ControlBus™ Module mounting.
Fig. 3. RS-232 Interface insertion
(serial communications).
Fig. 4. Modem insertion, Network Interface Unit.
Fig. 5. ControlBus™ RS-485 interface insertion.
1 (25) M2093
3-29/32
(99)
4-21/32 (118)
M7437B
ELECTRICAL
CONNECTOR
EDGE
CONNECTOR
CONTROLBUS™
MODULE
NETWORK
INTERFACE
UNIT
25-PIN
RS-232C
CONNECTOR
NETWORK
INTERFACE
UNIT
M7432B
CONTROLBUS™
PLUG-IN MODULE
9-PIN RS-232
CONNECTOR
RS-232C CONNECTOR
(SERIAL COMMUNICATIONS) M7433B
NETWORK
INTERFACE UNIT
CONTROLBUS™
MODULE
CONTROLBUS
RS-485 CONNECTOR
NETWORK
INTERFACE UNIT
M7436B

QS7800B NETWORK INTERFACE CONTROLBUS™ MODULE FOR MULTI-DROPPING 7800 SERIES RELAY MODULES
5 65-0227—2
Fig. 6. Multi-drop wiring.
NETWORK INTERFACE UNIT
PLUG-IN PLUG-IN
POWER
SUPPLY
L1
L2
GND
SYSTEM 2
ABC
M11347A
UNIVERSAL
POWER
SUPPLY
POWER SUPPLY.PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.Q7700A1014, 120V, 50/60 HZ; Q7700B1004,
UNIVERSAL POWER SUPPLY, 100TO 250V, 50/60 HZ.
CONNECT PIGTAIL LEADWIRES (Q7700A ONLY):
BLACK—L1
WHITE—L2
GREEN—GROUND
MULTI-DROP RS-485 COMMUNICATION BUS. UPTO 31 S7810B MULTI-DROP SWITCH MODULES (SUBNETWORKS) CAN BE CONNECTEDTO A SINGLE
QS7800B CONTROLBUS™MODULEWITHOUT AN RS-485 REPEATER. UPTO 61 S7810B MULTI-DROP SWITCH MODULES (SUBNETWORKS) CAN BE
CONNECTED TO A SINGLE QS7800B CONTROLBUS™MODULEWITH AN RS-485 REPEATER.
INSTALL THE REPEATER BETWEEN THE 30TH AND 31ST SUBNETWORKS.
UP TO SIX QS7800B CONTROLBUS™MODULES CAN BE INTERFACED WITHTHE NETWORK INTERFACE UNIT. MAXIMUM OF 222 MULTI-DROP
SUBNETWORKS CAN BE INTERFACED WITH A SINGLE Q7700 NETWORK INTERFACE UNIT.
LOCAL SYSTEM (SUBNETWORK).REFER TO S7810B MULTI-DROP SWITCH MODULE INSTRUCTIONS, FORM 65-0228, FOR WIRING INSTRUCTIONS.
THE SUBNETWORKS MUST BE WIRED IN A DAISY CHAIN CONFIGURATION. IT IS RECOMMENDED THAT THE QS7800B CONTROLBUS™MODULE
BE AT ONE END OF THE DAISY CHAIN.
22 AWG (OR LARGER) TWISTED PAIR SHIELDED CABLE (BELDEN 8723 OR EQUIVALENT) IS RECOMMENDED. CABLE SHIELD MUST BE GROUNDED
AT EACH END.
MULTI-DROP COMMUNICATION BUSTERMINATION RESISTORS:
A.WITHOUT RS-485 REPEATER: MODULES AT THE CLOSEST AND FARTHEST END OF THE DAISY CHAIN REQUIRETERMINATION RESISTORS. INSTALL
A 120 OHM, 1/4 WATT, RESISTOR BETWEEN TERMINALS a AND b of the QS7800B CONTROLBUS™MODULE. INSTALL A 120 OHM, 1/4 WATT, RESISTOR
BETWEEN TERMINALS 7 AND 8 OF THE LAST S7810B MULTI-DROP SWITCH MODULE IN THE DAISY CHAIN.
B.WITH RS-485 REPEATER:WHEN AN RS-485 REPEATER IS USED, TWO DAISY CHAIN CONFIGURATIONS ARE EFFECTIVELY FORMED. MODULES AT
THE CLOSEST AND FARTHEST END OF EACH DAISY CHAIN REQUIRETERMINATION RESISTORS. INSTALL A 120 OHM, 1/4 WATT, RESISTOR BETWEEN
TERMINALS a AND b OF THE QS7800B CONTROLBUS™MODULE. INSTALL A 120 OHM, 1/4 WATT, RESISTOR BETWEEN INPUT TERMINALS DATA+ AND
DATA- OF THE RS-485 REPEATER.INSTALL A 120 OHM, 1/4 WATT, RESISTOR BETWEEN OUTPUT TERMINALS DATA+ AND DATA- OF THE RS-485 REPEATER.
INSTALL A 120 OHM, 1/4 WATT, RESISTOR BETWEEN TERMINALS 7 AND 8 OF THE LAST S7810B MULTI-DROP SWITCH MODULE IN THE SECOND DAISY CHAIN.
FOR Q7700B NETWORK INTERFACE UNIT.
1
2
3
4
5
6
7
8
9
10
1
2
3
5
10
9
9
9
9
8
8
7
7
7
6
6
6
4
8 7 6 5 4 3 2 1
S7810B MULTI-DROP
SWITCH MODULE
7800 SERIES
RELAY MODULE
8 7 6 5 4 3 2 1
S7810B MULTI-DROP
SWITCH MODULE
7800 SERIES
RELAY MODULE
TO LOCAL
SYSTEM
8 7 6 5 4 3 2 1
S7810B MULTI-DROP
SWITCH MODULE
7800 SERIES
RELAY MODULE
TO LOCAL
SYSTEM
TO LOCAL
SYSTEM
INPUT
OUTPUT
+–GND
+–GND
RS-485
REPEATER

QS7800B NETWORK INTERFACE CONTROLBUS™ MODULE FOR MULTI-DROPPING 7800 SERIES RELAY MODULES
65-0227—2 6
BUILDING A MULTI-DROP NETWORK
Guidelines
The subnet ork addressing in the Q7700 Net ork Interface
Unit (NIU) is not contiguous. It is divided into t o blocks,
containing 198 and 24 addresses, respectively. A maximum
multi-drop configuration ould include 222 subnet orks (198
plus 24) on a single Q7700 NIU. Because the 24 subnet orks
are not contiguous, connect them to a separate Q7700 NIU
slot.
One QS7800B ControlBus™ Module card supports up to 31
multi-drop subnet orks ithout using an RS-485 repeater. If
an RS-485 repeater is used, up to 61 multi-drop subnet orks
can be supported by one QS7800B card. The RS-485
repeater must be installed bet een the 30th and 31st
subnet ork.
Each subnet ork includes one 7800 SERIES controller ith
or ithout an S7800 Keyboard Display Module and/or an
S7830 Expanded Annunciator. An S7810B1007 Multi-Drop
S itch Module is required in each subnet ork. See Fig. 6 for
iring information.
Subnet orks can be spread evenly (balanced) across the NIU
slots. This ill help to speed communications.
It is recommended that the multi-drop net ork be built starting
ith slot number 1 of the NIU, according to the guidelines
above.
Record the serial number and physical location of each
S7810B Multi-Drop S itch. This data ill be useful hen
commissioning the ZM7850 Combustion System Manager
(CSM) soft are. (Reference CSM manual, form 65-0102, for
CSM commissioning.)
Examples
Network with Maximum of 198 Subnetworks:
The open NIU slots can be used for other QS7800 ControlBus™ Module Cards.
Network with Maximum of 222 Subnetworks:
NOTE: For net orks that have more than 198 subnet orks,
the last NIU card slot must have the 199th through
222nd subnet ork attached to it.
The open NIU slot can be used for other QS7800 ControlBus™ Module Cards.
NIU Slot Num ers 1 2 3 4 5 6 Total
Number of Subnet orks 61 61 61 15 Open Open 198
Subnet orks Balanced 33 33 33 33 33 33 198
NIU Slot Num ers 1 2 3 4 5 6 Total
Number of Subnet orks 61 61 61 15 24 Open 222
Subnet orks Balanced 40 40 40 39 39 24 222

7 65-0227—2

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