Allen-Bradley ControlNet 1786-6.2.1 Planning And Installation Manual
Advertisement
Advertisement
Allen-Bradley
ControlNet
Coax Cable
System
(Cat. No. 1786-6.2.1)
Planning and
Installation
Manual
Important User
Information
Because of the variety of uses for the products described in this publication, those responsible for the application and use of this control equipment must satisfy themselves that all necessary steps have been taken to assure that each application and use meets all performance and safety requirements, including any applicable laws, regulations, codes and standards.
The illustrations, charts, sample programs and layout examples shown in this guide are intended solely for purposes of example. Since there are many variables and requirements associated with any particular installation, Allen-Bradley does not assume responsibility or liability
(to include intellectual property liability) for actual use based upon the examples shown in this publication.
Allen-Bradley publication SGI-1.1, Safety Guidelines for the
Application, Installation, and Maintenance of Solid-State Control
(available from your local Allen-Bradley office), describes some important differences between solid-state equipment and electromechanical devices that should be taken into consideration when applying products such as those described in this publication.
Reproduction of the contents of this copyrighted publication, in whole or in part, without written permission of Allen-Bradley Company, Inc., is prohibited.
Throughout this manual we use notes to make you aware of safety considerations:
!
ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage or economic loss.
Attention statements help you to:
• identify a hazard
• avoid the hazard
• recognize the consequences
Important: Identifies information that is critical for successful application and understanding of the product.
ControlNet is a trademark of ControlNet International Ltd.
PLC, PLC-5/20C, and PLC-5/40C are trademarks of Allen-Bradley Company, Inc.
Manual Contents
Abbreviations
Preface
About This Manual
Use this manual to plan and install a ControlNet
™
cable system.
This manual describes the required components of the cable system and how to plan for and install these required components.
To:
Understand the ControlNet Coax cable system
Plan a ControlNet Coax cable system
Install a ControlNet Coax cable system
Read chapter:
For reference on:
Mounting dimensions (taps, universal mounting bracket, and repeater)
Adjusting the cable strip tool
See appendix:
Important: We assume that you have a fundamental understanding of electronics and electrical codes.
Abbreviation
PVC cable
FEP cable
PLC processor
Means polyvinyl chloride cable fluorinated ethylene propylene cable
Allen-Bradley programmable logic controller network continues (other nodes not shown)
P-1
Publication 1786-6.2.1 - April 1998
P-2 About This Manual
Related Publications
Publication
ControlNet Cable System Component List
Industrial Automation Wiring and Grounding Guidelines
ControlNet Communication Interface User Manual
(parallel/serial interface, 1770-KFC)
ControlNet 1771 Adapter Module User Manual
1771-ACN(R) Installation Instructions
ControlNet Communication Interface Card Installation
Instructions (PC interface, 1784-KTC, -KTCX)
KTCX15 Installation Instructions
ControlNet PLC-5 Programming Software Instruction Set
Reference Manual
Publication Number
AG-2.2
1770-4.1
1770-6.5.20
1771-6.5.110
1771-6.5.124
1784-5.20
1784-5.33
1785-6.1
1785 PLC-5 Programmable Controller Design Manual
Enhanced & Ethernet PLC-5 Programmable Controllers User
Manual
ControlNet PLC-5 Programmable Controllers User Manual
1785 PLC-5 Programmable Controllers Quick Reference
ControlNet PLC-5 Programmable Controllers Quick Start
ControlNet PLC-5 Quick Start
1785-6.2.1
1785-6.5.12
ControlNet Coax Tap Installation Instructions
ControlNet Network Access Cable Installation Instructions
ControlNet Repeater Installation Instructions
ControlNet Release 1.5 System Overview
ControlNet Coax Taps Installation Instructions
ControlNet Coax Repeater Installation Instructions 1786-5.8
ControlNet High-flex RG-6 Coax Cable Installation Instructions 1786-5.9
ControlNet BNCJI Connector Installation Instructions
ControlNet Tap Dummy Load Installation Instructions
1786-5.14
1786-5.15
1794-5.8
1794-5.47
Flex I/O ControlNet Adapter Installation Instructions
1794-ACN(R) Installation Instructioins
PLC-5 Programming Software Configuration and Maintenance
Manual
PLC-5 Programming Software Programming Manual
PLC-5 Programming Software Instruction Set Reference
Manual
1785-6.5.14
1785-7.1
1785-7.4
1785-10.6
1786-2.3
1786-2.6
1786-2.7
1786-2.12
1786-5.7
6200-6.4.6
6200-6.4.7
6200-6.4.11
PLC-5 Programming Software I/O Configuration Manual
PLC-5 Programming Software Supplement —
ControlNet Support
6200-6.4.12
6200-6.4.20
Publication 1786-6.2.1 - April 1998
Table of Contents
Overview Of The ControlNet
Cable System
Planning A ControlNet Cable
System
Chapter 1
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Understanding The ControlNet Cable System. . . . . . . . . . . . . . . . 1-1
Understanding ControlNet Components . . . . . . . . . . . . . . . . . . . . 1-2
Nodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Taps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Trunk Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Terminators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Segments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
Repeaters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Links . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
Bridge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Network . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Next . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
Chapter 2
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Determining How Many Taps You Need. . . . . . . . . . . . . . . . . . . . 2-1
Connecting Programming Devices. . . . . . . . . . . . . . . . . . . . . . . . 2-2
Determining What Type Of Cable You Need . . . . . . . . . . . . . . . . . 2-3
Determining Trunk-Cable Section Lengths . . . . . . . . . . . . . . . . . 2-4
Determining How Many Terminators You Need . . . . . . . . . . . . . . 2-5
Determining If You Need Repeaters . . . . . . . . . . . . . . . . . . . . . . . 2-6
Configuring Your Link With Repeaters . . . . . . . . . . . . . . . . . . 2-7
Installing Repeaters In Series . . . . . . . . . . . . . . . . . . . . . . 2-8
Installing Repeaters In Parallel . . . . . . . . . . . . . . . . . . . . . 2-9
Installing Repeaters In A Combination Of Series And
Parallel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-10
Determining What Type Of Connectors You Need . . . . . . . . . . . 2-11
Using Redundant Media (optional) . . . . . . . . . . . . . . . . . . . . . . . 2-12
Application Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-14
General Wring Guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Wiring External To Enclosures . . . . . . . . . . . . . . . . . . . . . 2-15
Wiring Inside Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . 2-15
Surge Suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Ferrite Beads. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-16
Ordering Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
General Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Segment Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Link Planning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
Ordering Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Publication 1786-6.2.1 - April 1998
ii Table of Contents – ControlNet Coax Cable Planning and Installation Manual
Next . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-18
Chapter 3
Installing A ControlNet Cable
System
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Installing The Trunk Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Wiring External To Enclosures . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Wiring Inside Enclosures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Mounting The Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Selecting Where To Mount The Taps. . . . . . . . . . . . . . . . . . . . 3-2
Mounting The Taps. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2
Mounting A Tap Using A Universal Mounting Bracket . . . . . 3-3
Mounting A Tap Through The Body Holes . . . . . . . . . . . . . 3-4
Installing a Repeater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
European Union Directive Compliance . . . . . . . . . . . . . . . . . . 3-5
EMC Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Low Voltage Directive . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Selecting Where To Mount The Repeater(s) . . . . . . . . . . . . . . 3-5
Mounting The Repeater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Grounding The Repeater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Connecting Power And Relay Circuitry . . . . . . . . . . . . . . . . . . 3-7
Installing Cable Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Collecting Your Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-9
Stripping The Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-10
Testing For Electrical Shorts And Continuity . . . . . . . . . . . . . 3-14
Attaching The Connectors To The Cable . . . . . . . . . . . . . . . . 3-15
Testing For Electrical Shorts and Continuity . . . . . . . . . . . . . 3-17
Connecting Cable Sections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Terminating Segments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-18
Connecting Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-19
Connecting Programming Terminals Through NAP . . . . . . . . 3-19
Connecting The Repeater To A ControlNet Link. . . . . . . . . . . 3-21
Publication1786-6.2.1 - April 1998
Mounting Dimensions
Adjusting The Cable Strip
Tool
Table of Contents – ControlNet Coax Cable Planning and Installation Guide iii
Appendix A
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Taps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
Universal Mounting Bracket. . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Repeater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-2
Appendix B
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Calibrating The Cutting Blades . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
Reversing/Replacing
The Cutting Blades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3
Changing The Memory Blade Holder . . . . . . . . . . . . . . . . . . . . . . B-5
Publication 1786-6.2.1 - April 1998
Overview Of The ControlNet
Cable System
Chapter
Contents
5HDGWKLVFKDSWHUWRIDPLOLDUL]H\RXUVHOIZLWKWKH&RQWURO1HWFDEOH
V\VWHP
Understanding The ControlNet
Cable System
network
T
N
7KH&RQWURO1HWFDEOHV\VWHPJLYHV\RXWKHIOH[LELOLW\WRGHVLJQD
FRPPXQLFDWLRQQHWZRUNIRU\RXUSDUWLFXODUDSSOLFDWLRQ7RWDNHIXOO
DGYDQWDJHRIWKLVIOH[LELOLW\\RXVKRXOGVSHQGVXIILFLHQWWLPHSODQQLQJ
KRZWRLQVWDOO\RXUQHWZRUN EHIRUH DVVHPEOLQJDQ\RIWKHKDUGZDUH
8VHWKHIROORZLQJILJXUHDQGWHUPGHILQLWLRQVWRXQGHUVWDQGWKH
&RQWURO1HWFDEOHV\VWHP link segment
T T
N trunk-cable
N
T
R
T T
N segment
T
N
T
N
T
B
Term network link
T T T T T
Means a collection of connected nodes — the connection paths between any pair of devices may include repeaters and bridges a collection of nodes with unique addresses in the range of 1-99
Term repeater
R tapr
T
N N N link (one segment)
N
40952
Means a two-port active physical layer component that reconstructs and retransmits all traffic it hears on one segment side to another segment side the connection between any device and the ControlNet cable system segment trunk-cable sections connected via taps with terminators at each end and with no repeaters trunk cable the bus or central part of a cable system trunk-cable section a length of a cable between any two taps bridge
B node
N terminator a device that allows traffic to pass from one link to another link any physical device connecting to the ControlNet cable system which requires a network address in order to function on the network — a link may contain a maximum of 99 nodes this address must be in the range of 1 - 99 and be unique to that link a 75
Ω
resistor mounted in a BNC plug
Publication 1786-6.2.1 - April 1998
1-2
Understanding ControlNet
Components
Overview Of The ControlNet Cable System
7KH&RQWURO1HWFDEOHV\VWHPLVFRPSULVHGRIWKHVHFRPSRQHQWV
• QRGHV
• WDSV
• WUXQNFDEOH
• FDEOHFRQQHFWRUV
• WHUPLQDWRUV
• VHJPHQWV
• UHSHDWHUV
• OLQNV
• EULGJHV
• QHWZRUN
Nodes
1RGHVDUHGHILQHGDVSK\VLFDOGHYLFHVFRQQHFWLQJWRWKH&RQWURO1HW
FDEOHV\VWHPWKDWUHTXLUHDQHWZRUNDGGUHVVLQRUGHUWRIXQFWLRQRQWKH
QHWZRUN
T T T T
N N N N
40953
For information on purchasing these components see the Allen-Bradley ControlNet Cable System
Component List (publication AG-2.2).
Publication 1786-6.2.1 - April 1998
Overview Of The ControlNet Cable System 1-3
Taps
7DSVFRQQHFWHDFKQRGHRQDQHWZRUNWRWKHFRD[FDEOHV\VWHPYLDDQ
LQWHJUDOP´GURSFDEOH
T T T T
N N drop cable
1m (39.6")
N
7KHUHDUHIRXUWDSVDYDLODEOHZLWKD
• 7RU<SODFHPHQWRI%1&FRQQHFWRUV
N
40944
Y-tap
40955
T-tap
• VWUDLJKWRUULJKWDQJOHFRQQHFWRURQWKHGURSFDEOH straight right-angle 40956
6HHSDJHIRUGHWDLOHGLQIRUPDWLRQRQWDSV
Trunk Cable
7KHWUXQNFDEOHLVWKHEXVRUFHQWUDOSDUWRIWKH&RQWURO1HW
FRD[FDEOHV\VWHP7KHWUXQNFDEOHLVFRPSRVHGRIPXOWLSOHVHFWLRQV
RIFDEOH7KHVWDQGDUGFDEOHWKDWFDQEHXVHGWRFRQVWUXFWWUXQNFDEOH
VHFWLRQVLVTXDGVKLHOG5*W\SHFRD[
7KHUHDUHDOVRVHYHUDOW\SHVRIVSHFLDOXVHFDEOHV\RXFDQXVHGHSHQGLQJ
RQWKHHQYLURQPHQWLQZKLFK\RXDUHLQVWDOOLQJ\RXUFDEOHV\VWHP6HH
SDJHIRULQIRUPDWLRQRQWKHVHFDEOHV
Publication 1786-6.2.1 - April 1998
1-4 Overview Of The ControlNet Cable System
Cable Connectors
$FDEOHFRQQHFWRUFDWQR%1&DWWDFKHVFRD[WUXQNFDEOH
VHFWLRQVWRWKHWDS¶V%1&FRQQHFWRU trunk-cable
N N N N
40957
2SWLRQDO&RQQHFWRUV
$OOHQ%UDGOH\DOVRRIIHUVRSWLRQDOFDEOHFRQQHFWRUVIRUXVHLQ\RXU
QHWZRUNFRQILJXUDWLRQ6HHSDJHIRUDYDLODEOHFRQQHFWRUV
Terminators
$ Ω WHUPLQDWRUFDWQR;7 PXVW EHLQVWDOOHGRQWKHWDSDW
HDFKHQGRIDVHJPHQW
T T T T trunk-cable
N N N N
40958
Segments
$VHJPHQWLVDFROOHFWLRQRIFRD[WUXQNFDEOHVHFWLRQVWDSVDQGWZR
WHUPLQDWRUV segment
T T
N trunk-cable
N
T T
N N
40959
7KHWRWDODOORZDEOHOHQJWKRIDVHJPHQWGHSHQGVXSRQWKH QXPEHURI
WDSV
LQ\RXUVHJPHQWDQGWKHFRD[FDEOHW\SHXVHG6HHSDJHIRU
GHWDLOHGLQIRUPDWLRQ
Publication 1786-6.2.1 - April 1998
T
N
Overview Of The ControlNet Cable System 1-5
Repeaters
8VHDUHSHDWHUWRLQFUHDVHWKHQXPEHURIWDSVH[WHQGWKHWRWDOOHQJWK
RI\RXUVHJPHQWRUFUHDWHDVWDUFRQILJXUDWLRQJRRIILQPXOWLSOH
GLUHFWLRQVIURPRQHSRLQW7KHQXPEHURIUHSHDWHUVDQGFDEOHOHQJWK
WRWDOLVOLPLWHGGHSHQGLQJRQ\RXUQHWZRUNWRSRORJ\ segment segment
T T T T T T T T
N trunk-cable
N
R
N N N N
40960
:KHQ\RXLQVHUWDUHSHDWHULQWR\RXUFDEOHV\VWHP\RXFUHDWHDQHZ
VHJPHQW7KHVDPHUHVWULFWLRQVRQWKHQXPEHURIWDSVDQGFDEOHOHQJWK
DSSO\WRWKLVQHZVHJPHQW
T
N N
T
Links
$OLQNLVDFROOHFWLRQRIQRGHVIRUPLQJ
• DVHJPHQW
• PXOWLSOHVHJPHQWVFRQQHFWHGWRJHWKHUYLDUHSHDWHUV
(DFKQRGHLQDOLQNPXVWKDYHDXQLTXHDGGUHVVLQWKHUDQJHRI link segment segment
T T T T T
T T
R
N N N N N
40961
Publication 1786-6.2.1 - April 1998
1-6 network
T
N
T
N
Next
Overview Of The ControlNet Cable System
T
N
T
N N
T
Bridge
$EULGJHLVDGHYLFHXVHGWRFRQQHFWOLQNV link
T T T T
R
N N
T
N
T
T T
N N link (one segment)
N
T
N
T
B
T
40962 segment
T T
N trunk-cable
N
Network
$QHWZRUNLVWKHFROOHFWLRQRIQRGHVFRQQHFWHGWRJHWKHUE\UHSHDWHUV
DQGEULGJHV link segment
T
T T T T T
R
N N N
B
T T T T T T T T
N segment
N
R
N N segment
N link
40963
1RZWKDW\RXKDYHDJHQHUDOXQGHUVWDQGLQJRIWKH&RQWURO1HWFDEOH
V\VWHP\RXDUHUHDG\WRGHVLJQD&RQWURO1HWFDEOHV\VWHPIRU\RXU
VSHFLILFUHTXLUHPHQWV*RWRFKDSWHU
Publication 1786-6.2.1 - April 1998
Contents
Determining How Many
Taps You Need
Planning A ControlNet Cable
System
Chapter
8VHWKLVFKDSWHUWRGHWHUPLQH\RXUQHWZRUNUHTXLUHPHQWV
To determine: how many taps you need how to connect your programming device what type of cable you need trunk-cable section lengths determine how many terminators you need if you need repeaters what type of connectors you need if you will use redundant media application considerations components to order (summary)
See page:
$IWHUUHDGLQJWKLVFKDSWHUFRQVXOWHQJLQHHULQJGUDZLQJVRI\RXUIDFLOLW\
IRUVSHFLILFLQIRUPDWLRQFRQFHUQLQJWKHEHVWORFDWLRQIRULQVWDOOLQJ\RXU
QHWZRUN
Important: 7KH&RQWURO1HWFDEOHV\VWHPLVDJURXQGLVRODWHGFRD[LDO
QHWZRUN3URSHUVHOHFWLRQRIFDEOHFRQQHFWRUV
DFFHVVRULHVDQGLQVWDOODWLRQWHFKQLTXHVLVQHFHVVDU\WR
PDNHVXUHLWLVQRWDFFLGHQWDOO\JURXQGHG
7KHQXPEHURIWDSV\RXQHHGGHSHQGVRQWKHQXPEHURIGHYLFHV\RX
ZDQWWRFRQQHFWWRWKHQHWZRUN<RXQHHGDWDSIRUHDFKQRGHDQG
UHSHDWHURQDVHJPHQW
,I\RXSODQWRDGGQRGHVDWDODWHUGDWH\RXVKRXOGFRQVLGHURUGHULQJ
DQGLQVWDOOLQJWKHFDEOHDQGFRQQHFWRUVIRUWKHVHDGGLWLRQDOQRGHVZKHQ
\RXLQVWDOOWKHLQLWLDOQHWZRUN7KLVZLOOPLQLPL]HGLVUXSWLRQWRWKH
QHWZRUNGXULQJRSHUDWLRQ
Important: $GLVFRQQHFWHGGURSFDEOHFDQFDXVHQRLVHRQWKH
QHWZRUN%HFDXVHRIWKLVZHUHFRPPHQGKDYLQJ RQO\
RQH XQFRQQHFWHGGURSFDEOHSHUVHJPHQWIRUPDLQWHQDQFH
SXUSRVHV%HVXUHWRNHHSWKHGXVWFDSRQDQ\XQFRQQHFWHG
GURSFDEOH,I\RXUFDEOHV\VWHPUHTXLUHVPRUHWKDQRQH
XQFRQQHFWHGGURSFDEOHXQXVHGGURSFDEOHVVKRXOGEH
WHUPLQDWHGZLWKDGXPP\ORDG7&$3
,I\RXDUHSODQQLQJIXWXUHLQVWDOODWLRQRIDGGLWLRQDOQRGHV
GRQRWLQVWDOOWKHWDS,QVWHDGLQVWDOOD%1&EXOOHWFRQQHFWRU
Publication 1786-6.2.1 - April 1988
2-2 Planning A ControlNet Cable System
(DFKWDSNLWFRQWDLQV
BNC connector kits tap (1786-TPS, -TPR,
-TPYS, -TPYR)
ControlNet cable labels dust cap screws
30012-M universal mounting bracket
For noise suppression, ferrite beads are molded on the drop cable.
7KHVHWDSNLWVDUHDYDLODEOH
Straight T-tap Straight Y-tap Right-angle T-tap Right-angle Y-tap
Connecting
Programming Devices
1768-TPS 1768-TPYS 1768-TPR 1768-TPYR
20094-m
$77(17,21 7DSVFRQWDLQSDVVLYHHOHFWURQLFVDQG
PXVWEHXVHGIRUWKHQHWZRUNWRIXQFWLRQSURSHUO\
2WKHUPHWKRGVRIFRQQHFWLQJWRFRD[WUXQNFDEOHZLOO
UHVXOWLQUHIOHFWHGHQHUJ\WKDWZLOOGLVUXSW
FRPPXQLFDWLRQV
3URJUDPPLQJGHYLFHVPD\EHFRQQHFWHGWRWKH&RQWURO1HWFDEOH
V\VWHPWKURXJK
• WKHPDLQWHQDQFHWDSRQDVHJPHQWIRUDWHPSRUDU\FRQQHFWLRQ
• DWDSRQDVHJPHQWIRUDSHUPDQHQWFRQQHFWLRQ
• WKH&RQWURO1HWQHWZRUNDFFHVVFDEOH&3²
WKLVFRQQHFWV\RXUSURJUDPPLQJGHYLFHVWR&RQWURO1HWQRGHV
SURFHVVRUVFRPPXQLFDWLRQLQWHUIDFHVDQGDGDSWHUVWKURXJK
QHWZRUNDFFHVVSRUWV1$3V DQGDOORZV\RXWRJDLQIXOODFFHVV
WRWKHQHWZRUN
Publication 1786-6.2.1 - April 1988
Planning A ControlNet Cable System 2-3
Important: 7KH&3FDEOHFDQEHSOXJJHGLQWRDQ\&RQWURO1HW
SURGXFW¶V1$3WRSURYLGHSURJUDPPLQJFDSDELOLW\RQWKH
&RQWURO1HWQHWZRUN$SURJUDPPLQJWHUPLQDOFRQQHFWHG
WKURXJKWKLVFDEOH LV FRXQWHGDVDQRGHDQG PXVW KDYHD
XQLTXHDGGUHVV
Using a 1784-KTCX15 communication card on coax media programming terminal 1784-KTCX15
Using a 1784-KTCX15 communication card and NAP programming terminal
1784-KTC15 or -KTCx15
1786-CP node node
Using a 1770-KFD15 communicaton intrafce on coax media Using a 1770-KFC15 communicaton intrafce on coax media programming terminal serial or parallel conncetion
1770-KFC15 programming terminal serial or parallel conncetion
1786-CP node 1770-KFC15 node
Determining What Type
Of Cable You Need
30013-m
$77(17,21 8VHWKH &3 FDEOHZKHQ
FRQQHFWLQJDSURJUDPPLQJWHUPLQDOWRWKHQHWZRUN
WKURXJK1$3V 8VLQJDFRPPHUFLDOO\DYDLODEOH
5-VW\OHFDEOHFRXOGUHVXOWLQSRVVLEOHQHWZRUNIDLOXUHV
7KHUHDUHVHYHUDOW\SHVRI5*TXDGVKLHOGFDEOHWKDWPD\EH
DSSURSULDWHIRU\RXULQVWDOODWLRQGHSHQGLQJRQWKHHQYLURQPHQWDO
IDFWRUVDVVRFLDWHGZLWK\RXUDSSOLFDWLRQDQGLQVWDOODWLRQVLWH
Publication 1786-6.2.1 - April 1988
2-4
Determining
Trunk-Cable Section
Lengths
Planning A ControlNet Cable System terminator
<RXVKRXOGLQVWDOODOOZLULQJIRU\RXU&RQWURO1HWFDEOHV\VWHPLQ
DFFRUGDQFHZLWKWKHUHJXODWLRQVFRQWDLQHGLQWKH1DWLRQDO(OHFWULF&RGH
RUDSSOLFDEOHFRXQWU\FRGHVVWDWHFRGHVDQGDSSOLFDEOHPXQLFLSDO
FRGHV
For: light industrial applications heavy industrial applications high and low temperature applications, as well as corrosive areas (harsh chemicals) festooning or flexing applications
Use this cable type:
Standard-PVC
CM-CL2
Lay-on Armoured and
Interlocking Armour
Plenum-FEP
CMP-CL2P
High Flex moisture resistant applications; direct burial, with flooding compound, fungus resistant
Flood Burial
See the ControlNet Cable System Component List (publication AG-2.2) for information on suppliers and part numbers.
$VHJPHQWLVFRPSULVHGRIVHYHUDOVHFWLRQVRIWUXQNFDEOHVHSDUDWHGE\
WDSV7KHWRWDOFDEOHOHQJWKRIDVHJPHQWLVHTXDOWRWKHVXPRIDOORI
WKHWUXQNFDEOHVHFWLRQV tap tap tap terminator trunk-cable section trunk-cable section
30094-m
Important: :KHQGHWHUPLQLQJWKHFDEOHOHQJWKRIWUXQNFDEOH
VHFWLRQVPDNHVXUH\RXPHDVXUHWKHDFWXDOFDEOHSDWKDV
LWLVURXWHGLQ\RXUQHWZRUN&RQVLGHUYHUWLFDOGLPHQVLRQV
DVZHOODVKRUL]RQWDOGLPHQVLRQV<RXVKRXOGDOZD\V
FDOFXODWHWKHWKUHHGLPHQVLRQDOURXWLQJSDWKGLVWDQFH
ZKHQGHWHUPLQLQJFDEOHOHQJWKV
6HOHFWWKHVKRUWHVWSDWKIRUURXWLQJWKHFDEOHWRPLQLPL]HWKHDPRXQW
RIFDEOH\RXQHHG7KHVSHFLILFGHWDLOVRISODQQLQJVXFKDFDEOHURXWH
GHSHQGVXSRQWKHQHHGVRI\RXUQHWZRUN
Publication 1786-6.2.1 - April 1988
Planning A ControlNet Cable System 2-5
7KHWRWDODOORZDEOHOHQJWKRIDVHJPHQWFRQWDLQLQJVWDQGDUG5*TXDG
VKLHOGFDEOHGHSHQGVXSRQWKH QXPEHURIWDSV LQ\RXUVHJPHQW7KHUH
LV QRPLQLPXP WUXQNFDEOHVHFWLRQOHQJWKUHTXLUHPHQW7KH
PD[LPXPDOORZDEOHWRWDOOHQJWKRIDVHJPHQWLVPIWZLWK
WZRWDSVFRQQHFWHG(DFKDGGLWLRQDOWDSGHFUHDVHVWKHPD[LPXPOHQJWK
RIWKHVHJPHQWE\PIW7KHPD[LPXPQXPEHURIWDSVDOORZHG
RQDVHJPHQWLVZLWKDPD[LPXPOHQJWKRIPIW maximum allowable segment length =
1000m (3280ft) - 16.3m (53.4ft) X [number of taps - 2]
1000 (3280)
750 (2460)
500 (1640)
250 (820)
2 16 32 number of taps
48
30014-m
Example
If your segment requires 10 taps, the maximum segment length is:
1000m (3280ft) - 16.3m (53.5ft) x [10 - 2]
1000m (3280ft) - 130.4m (427.7ft)) = 869.6m (2852.3ft)
7KHDPRXQWRIKLJKIOH[5*FDEOH5*)\RXFDQXVHLQD
V\VWHPLVOHVVWKDQWKHDPRXQWRIVWDQGDUG5*FDEOHVR\RXVKRXOG
NHHSKLJKIOH[FDEOHXVHWRDPLQLPXP8VH%1&EXOOHWFRQQHFWRUVWR
LVRODWHDUHDVWKDWUHTXLUHKLJKIOH[5*FDEOHIURPDUHDVWKDWUHTXLUH
VWDQGDUG5*FDEOHWKLVDOORZVWKHKLJKIOH[5*VHFWLRQWREH
UHSODFHGEHIRUHIOH[WXUHOLIHLVH[FHHGHG
Publication 1786-6.2.1 - April 1988
2-6 Planning A ControlNet Cable System
$QDOORZDEOHWRWDOOHQJWKRI5*IOH[FDEOHVHJPHQWLQ\RXU
DSSOLFDWLRQFDQEHGHWHUPLQHGXVLQJWKHHTXDWLRQEHORZ(DFK
DGGLWLRQDOWDSGHFUHDVHVWKHPD[LPXPOHQJWKRIWKHVHJPHQW7KH
PD[LPXPQXPEHURIWDSVDOORZHGRQDVHJPHQWLV(DFKDGGLWLRQDO
WDSGHFUHDVHVWKHPD[LPXPOHQJWKRIWKHVHJPHQWE\GLIIHUHQWOHQJWKV
GHSHQGLQJRQWKHDWWHQXDWLRQRI\RXUKLJKIOH[FDEOH maximum allowable segment length of high-flex cable =
(20.29 db - number of taps in segment * .32 db) cable attenuation @ 10MHz per 304 m (1000 ft)
Note: Cable attenuation is defined as the signal loss measured at 10 MHz per
1000 ft (304 m) of cable. Cable attenuation for ControlNet cables are listed in publication AG-2.2, ControlNet Cable Systmems Component
List.
Determining How Many
Terminators You Need
Example
If your segment requires 3 taps using 1786-RG6F/B cable, the maximum segment length is:
([20.29 db - 3*.32 db] / 7.18 db] * 1000)
(19.33 db / 7.18 db) * 1000 = 820 m (2692 ft)
7KHWRWDOWUXQNFDEOHOHQJWKRUQXPEHURIWDSVFDQEHLQFUHDVHGE\
LQVWDOOLQJUHSHDWHUVRQWKHVHJPHQW7KLVFUHDWHVDQRWKHUVHJPHQW
<RXPXVWXVH Ω WHUPLQDWRUVFDWQR;7DWWKHHQGRIHDFK
VHJPHQWIRUWKH&RQWURO1HWFDEOHV\VWHPWRZRUN
1786-XT
$IWHU\RXKDYHGHWHUPLQHGKRZPDQ\VHJPHQWVZLOOEHLQ\RXUQHWZRUN
PXOWLSO\WKLVQXPEHUE\WZRWRILJXUHRXWKRZPDQ\WHUPLQDWRUV\RX
ZLOOQHHGIRU\RXUQHWZRUN
Publication 1786-6.2.1 - April 1988
Determining If You Need
Repeaters
Planning A ControlNet Cable System 2-7
<RXQHHGWRLQVWDOOUHSHDWHUVLI\RXUV\VWHPUHTXLUHVPRUHWKDQ
WDSVSHUVHJPHQWRUDORQJHUWUXQNFDEOHWKDQWKH
VSHFLILFDWLRQVDOORZ
1000 (3280)
750 (2460)
500 (1640)
250 (820)
Repeater
Required
Repeater not
Required
2 16 32 number of taps
48
30016-m
7KHPD[LPXPQXPEHURIDGGUHVVDEOHQRGHVSHUOLQNQRWFRXQWLQJ
UHSHDWHUVLV6LQFHUHSHDWHUV GRQRWUHTXLUH DQDGGUHVVWKH\GR
QRWFRXQWDJDLQVWWKHWRWDORI segment 1 repeater
If each segment is less than 250m, each segment could contain up to
47 nodes (48 connections are allowed on a 250m segment - 1 tap for the repeater).
segment 2
7KH&RQWURO1HWFRD[UHSHDWHUVSURYLGH
• DQLQWHUQDOSRZHUVXSSO\
For this input power: Use this repeater:
85 to 250V ac or 110 to 250V dc 1786-RPT
20 to 72V dc 1786-RPTD
• DUHSODFHDEOHIXVHIRURYHUFXUUHQWSURWHFWLRQ
• WZRLQGLFDWRUVIRUVWDWXVDQGWURXEOHVKRRWLQJ
• DIDXOWUHO\FRQWDFWIRUVWDWXVLQGLFDWLRQRUVZLWFKLQJWRD
EDFNXSUHSHDWHU:KHQZLUHGWRH[WHUQDOFLUFXLWU\WKLVFRQWDFWFRXOG
EHXVHGWRWXUQRIIDOLJKWRUDFWLYDWHDEDFNXSUHSHDWHU
When the repeater is: working properly not working properly (or a loss of power occurs)
This contact: will be held closed will open
Publication 1786-6.2.1 - April 1988
2-8 Planning A ControlNet Cable System
7KHIROORZLQJGLDJUDPVKRZVDSRVVLEOHFRQILJXUDWLRQIRUSRZHULQJD
EDFNXSUHSHDWHULQ\RXU&RQWURO1HWQHWZRUN,QWKLVGLDJUDPWKH
EDFNXSUHSHDWHUZLOOEHDFWLYDWHGZKHQWKHSULPDU\UHSHDWHULVIDXOWHG primary repeater contact
This diagram shows a possible configuration for powering a backup repeater in your ControlNet network. In this diagram, the backup repeater will be activated when the primary repeater is faulted.
primary repeater contact power (ac or dc)
CR 1 power (ac or dc)
CR 1-1 to backup repeater
30017-m
$77(17,21 'RQRWSRZHUERWKUHSHDWHUVDWWKH
VDPHWLPH3RZHULQJERWKUHSHDWHUVDWWKHVDPHWLPH
GLVUXSWVFRPPXQLFDWLRQRQWKHQHWZRUN8VHWKH
IDXOWUHOD\FRQWDFWRIWKHSULPDU\UHSHDWHUWRFRQWURO
SRZHUWRWKHEDFNXSUHSHDWHU
Configuring Your Link With Repeaters
:KHQ\RXFRQILJXUH\RXUOLQNXVLQJUHSHDWHUV\RXFDQLQVWDOOWKHPLQ
RQHRIWKUHHZD\V
You can install repeaters in: series parallel
See: section below
a combination of series and parallel
Important: $UHSHDWHUFDQEHFRQQHFWHGWRDVHJPHQWDWDQ\WDS
ORFDWLRQ
$77(17,21 7KHPD[LPXPV\VWHPVL]HLVEDVHG
RQWKHGLVWDQFHEHWZHHQDQ\WZRQRGHV7KHWRWDO
DPRXQWRIFDEOHXVHGLQWKHQHWZRUNLVRQO\OLPLWHGE\
WKHGLVWDQFHEHWZHHQWKHIXUWKHVWWZRQRGHV
Publication 1786-6.2.1 - April 1988
Planning A ControlNet Cable System 2-9
,QVWDOOLQJ5HSHDWHUV,Q6HULHV
:KHQ\RXLQVWDOOUHSHDWHUVLQVHULHV\RXVKRXOGXVH\RXU&RQWURO1HW
1HWZRUNPDQDJHPHQW6RIWZDUH561HW:RU[WRYHULI\WKDWWKHV\VWHP
LVDQDOORZDEOHFRQILJXUDWLRQ7KHV\VWHPVL]HLVEDVHGRQWKHPD[LPXP
QXPEHURIUHSHDWHUVLQDVHULHVDQGOHQJWKRIWKHPHGLDXVHGEHWZHHQ
DQ\WZRQRGHV
Example:
• segments 1 and 4 each have 2 taps and each = 1000 m (3280 ft)
• segments 2 and 3 each have 3 taps and each = 983.7 m (3226.6 ft)
• the total length of this link = 3967.4 m (13,013.2 ft)
• there are three repeaters in series (A, B, C) ) segment 1 segment 2 repeater A repeater B segment 3 segment 4 repeater C
20090a-m
Publication 1786-6.2.1 - April 1988
2-10 Planning A ControlNet Cable System
,QVWDOOLQJ5HSHDWHUV,Q3DUDOOHO
:KHQ\RXLQVWDOOUHSHDWHUVLQSDUDOOHO \RXFDQLQVWDOODPD[LPXPRI
UHSHDWHUV WKHPD[LPXPQXPEHURIWDSVSHUPVHJPHQWRQDQ\
RQHVHJPHQW
,I\RXUOLQNLVFRQILJXUHGXVLQJUHSHDWHUVLQSDUDOOHO\RXFRXQWRQHRI
WKHUHSHDWHUWDSVIRURQHVHJPHQWDQGWKHRWKHUUHSHDWHUWDSIRUWKH
SDUDOOHOVHJPHQWWKDWWKHUHSHDWHULVFRQQHFWLQJWRWKHEDFNERQH
QHWZRUN
,QWKHH[DPSOHEHORZ6HJPHQWFRXQWVRQO\RQHUHSHDWHUWDSDVZHOO
DVWKHWDSVIRUWKHQRGHV7KHRWKHUUHSHDWHUWDSLVFRXQWHGWRZDUGWKH
OLPLWDWLRQVRI6HJPHQW
Example:
• segment 4 is 983.7 m (3226.6ft)
• segments 1, 2, and 3 each have 3 (if they have an equal number of nodes) can each have up to 33 nodes on them (a link can have 99 connections, not inculding repeaters)
• segments 1, 2, and 3 with 33 nodes on them, can not exceed 478.4 m (145.8 ft) ) segment 4 segment 1 segment 2 segment 3
20092a-m
Publication 1786-6.2.1 - April 1988
segment 1 segment 4 repeater A repeater D
Planning A ControlNet Cable System 2-11
,QVWDOOLQJ5HSHDWHUV,Q$&RPELQDWLRQ2I6HULHV$QG3DUDOOHO
<RXFDQLQVWDOOUHSHDWHUVLQDFRPELQDWLRQRIVHULHVDQGSDUDOOHO
FRQQHFWLRQVIROORZLQJWKHJXLGHOLQHVOLVWHGIRUHDFKWRIRUPDOLQN
)RUPL[HGWRSRORJLHVVHULHVDQGSDUDOOHOWKHPD[LPXPQXPEHURI
UHSHDWHUVDQGPHGLDWKDWFDQEHXVHGPXVWEHYHULILHGXVLQJ\RXU
&RQWURO1HW1HWZRUN0DQDJHPHQW6RIWZDUH561HW:RU[
,I\RXUQHWZRUNLVFRQILJXUHGXVLQJUHSHDWHUVLQFRPELQDWLRQRIVHULHV
DQGSDUDOOHO\RXQHHGWRFRXQWWKHWDSVDQGUHSHDWHUVLQDOOVHJPHQWV
7KHUHFDQEHRQO\RQHSDWKEHWZHHQDQ\WZRQRGHVRQD&RQWURO1HW
OLQN0XOWLSOHUHSHDWHUFRQQHFWLRQVEHWZHHQWZRVHJPHQWVDUH
QRWDOORZHGLHWKH&RQWURO1HWFDEOHV\VWHPGRHVQRWVXSSRUW
ULQJWRSRORJLHV
In this link if each segment contains 500m (1640 ft) of cable:
• segment 3 can contain up to 29 nodes, since it already contains 3 taps.
• segments 1, 2, and 4 can contain up to 31 nodes each, since they already contain one tap for a repeater.
• segments 5, 6, and 7 can contain up to 30 nodes, since they already contain 2 taps for repeaters.
• the maximum number of nodes that can be connected to the link is 99 (not counting repeaters) segment 3 repeater E repeater F segment 2 segment 5 segment 6 repeater B repeater C segment 7
20133-m
Publication 1786-6.2.1 - April 1988
2-12 Planning A ControlNet Cable System
7KHVHFRQQHFWRUVDUHDYDLODEOH
Determining What Type
Of Connectors You Need
Use this BNC connector: cable connector
Use this optional BNC connector: bullet (jack-to-jack) barrel (plug-to-plug) isolated-bulkhead
(jack-to-jack) tap dummy load
To: attach trunk-cable sections to a tap’s BNC connector
Cat. No.
1786-BNC
To: reserve a space in the trunk cable for future installation of a tap or to splice a trunk cable
Cat. No.
1786-BNCJ connect two adjacent taps without a trunk-cable section between them
1786-BNCP go through grounded panel walls while maintaining the shield isolation of the trunk-cable.
1786-BNCJI cap off installed taps that have yet to be connected to a node
1786-TCAP right angle (jack-to-plug) provide a 90û bend in your cable (prevent bending your cable excessively).
See Chapter 3 for the bend radius specification.
See the Allen-Bradley
ControlNet Cable
System Component List
(publication AG-2.2) for the part number.
In this example, ControlNet cable:
• enters and exits the panel enclosure from the side using isolated-bulkhead connectors
• contains two adjacent taps connected by a barrel connector
• reserves one future tap location with a bullet connector
• makes a sharp bend with a right angle connector panel wall bullet connector barrell connector cable enters and exits from the side isolated-bulkhead connectors taps right angle connectors
20091-m
$77(17,21 'RQRWOHWDQ\PHWDOOLFVXUIDFHVRQWKH
%1&FRQQHFWRUVSOXJVRURSWLRQDODFFHVVRULHVWRXFK
JURXQGHGPHWDOOLFVXUIDFHV7KLVFRQWDFWFRXOGFDXVH
QRLVHRQWKHQHWZRUN
Publication 1786-6.2.1 - April 1988
Using Redundant Media
(optional)
Planning A ControlNet Cable System 2-13
Important: ,I\RXDUHLQVWDOOLQJDEXOOHWFRQQHFWRUIRUIXWXUHWDS
LQVWDOODWLRQVFRXQWWKHEXOOHWDVRQHRIWKHWDSDOORWPHQWV
RQ\RXUVHJPHQWDQGGHFUHDVHWKHPD[LPXPDOORZDEOH
FDEOHOHQJWKE\P>IW@
7KLVKHOSV\RXDYRLGUHFRQILJXULQJ\RXUQHWZRUNZKHQ
\RXLQVWDOOWKHWDS
<RXFDQUXQDVHFRQGWUXQNFDEOHEHWZHHQ\RXU&RQWURO1HWQRGHVIRU
UHGXQGDQWPHGLD:LWKUHGXQGDQWPHGLDQRGHVVHQGVLJQDOVRQWZR
VHSDUDWHVHJPHQWV7KHUHFHLYLQJQRGHFRPSDUHVWKHTXDOLW\RIWKHWZR
VLJQDOVDQGDFFHSWVWKHEHWWHUVLJQDOWRSHUPLWXVHRIWKHEHVWVLJQDO
7KLVDOVRSURYLGHVDEDFNXSFDEOHVKRXOGRQHFDEOHIDLO
7UXQNFDEOHVRQDUHGXQGDQWFDEOHOLQNDUHGHILQHGE\WKHVHJPHQW
QXPEHUDQGWKHUHGXQGDQWWUXQNFDEOHOHWWHU
$FWXDO&RQWURO1HWSURGXFWVDUHODEHOHGZLWKWKHVHLFRQV
WKHVKDGHGLFRQUHSUHVHQWLQJUHGXQGDQWPHGLD
,QWKLVILJXUHWKHUHGXQGDQWFDEOHWUXQNFDEOHLVWUXQNFDEOH% trunk cable A = trunk cable B = node 1
1 Node supporting redundant media node 1 node 1
20134-m
Publication 1786-6.2.1 - April 1988
2-14 terminator
Planning A ControlNet Cable System
2EVHUYHWKHVHJXLGHOLQHVZKHQSODQQLQJDUHGXQGDQWPHGLDV\VWHP
• 5RXWHWKHWZRWUXQNFDEOHVWUXQNFDEOH$DQGWUXQNFDEOH%
GLIIHUHQWO\WRUHGXFHWKHFKDQFHRIERWKFDEOHVEHLQJGDPDJHG
DWWKHVDPHWLPH
• (DFKQRGHRQDUHGXQGDQWFDEOHOLQNPXVWVXSSRUWUHGXQGDQWFRD[
FRQQHFWLRQVDQGEHFRQQHFWHGWRERWKWUXQNFDEOHVDWDOOWLPHV$Q\
QRGHVFRQQHFWHGWRRQO\RQHVLGHRIDUHGXQGDQWFDEOHOLQNZLOO
UHVXOWLQPHGLDHUURUVRQWKHXQFRQQHFWHGWUXQNFDEOH
• ,QVWDOOWKHFDEOHV\VWHPVRWKDWWKHWUXQNFDEOHVDWDQ\SK\VLFDO
GHYLFHORFDWLRQFDQEHHDVLO\LGHQWLILHGDQGODEHOHGZLWKWKH
DSSURSULDWHLFRQRUOHWWHU (DFKUHGXQGDQW&RQWURO1HWGHYLFHLV
ODEHOHGVR\RXFDQFRQQHFWLWWRWKHFRUUHVSRQGLQJWUXQNFDEOH
• %RWKWUXQNFDEOHVWUXQNFDEOH$DQGWUXQNFDEOH%RID
UHGXQGDQWFDEOHOLQNPXVWKDYHLGHQWLFDOFRQILJXUDWLRQV
(DFKVHJPHQWPXVWFRQWDLQWKHVDPHQXPEHURIWDSVQRGHVDQG
UHSHDWHUV &RQQHFWQRGHVDQGUHSHDWHUVLQWKHVDPHUHODWLYH
VHTXHQFHRQERWKWUXQNFDEOHV
• (DFKVLGHRIDUHGXQGDQWFDEOHOLQNPD\FRQWDLQGLIIHUHQWOHQJWKV
RIFDEOH7KHWRWDOGLIIHUHQFHLQOHQJWKEHWZHHQWKHWZRWUXQNFDEOHV
RIDUHGXQGDQWFDEOHOLQNPXVWQRWH[FHHG
PIW trunk cable A =
SEGMENT 1 trunk cable B = terminator node 1
1 Node supporting redundant media terminator node 1 repeater trunk cable B = trunk cable A = repeater node 1
SEGMENT 2 node 1 terminator
20135-m
Publication 1786-6.2.1 - April 1988
Application
Considerations
Planning A ControlNet Cable System 2-15 terminator
• $YRLGFRQQHFWLQJDVLQJOHQRGH¶VUHGXQGDQWWUXQNFDEOHFRQQHFWLRQV
RQGLIIHUHQWVHJPHQWVWKLVZLOOFDXVHHUUDWLFRSHUDWLRQ trunk cable A =
SEGMENT 1 terminator trunk cable B = repeater node 1 repeater node 1 node 1 terminator trunk cable B = trunk cable A =
SEGMENT 2 terminator
1 Node supporting redundant media
20136-m
Important: $QRGHVXSSRUWLQJUHGXQGDQWWUXQNFDEOHFRQQHFWLRQV
ZLOOIXQFWLRQHYHQLIWUXQNFDEOH$LVFRQQHFWHGWRWKH%
FRQQHFWRURQWKHQRGHDQGYLFHYHUVD7KLVPDNHVFDEOH
IDXOWLQGLFDWLRQVRQWKHKDUGZDUHRULQVRIWZDUHGLIILFXOW
WRLQWHUSUHWDQGPDNHVORFDWLQJDEDGFDEOHVHJPHQWYHU\
GLIILFXOW
7KHIROORZLQJJXLGHOLQHVFRLQFLGHZLWKWKHJXLGHOLQHVIRU³WKH
LQVWDOODWLRQRIHOHFWULFDOHTXLSPHQWWRPLQLPL]HHOHFWULFDOQRLVHLQSXWV
WRFRQWUROOHUVIURPH[WHUQDOVRXUFHV´LQ,(((VWDQGDUG
:KHQSODQQLQJ\RXUFDEOHV\VWHPWKHUHDUHFHUWDLQLQVWDOODWLRQ
FRQVLGHUDWLRQVGHSHQGLQJRQ\RXUDSSOLFDWLRQ
7KHUHDUHWKUHHFDWHJRULHVRIFRQGXFWRUV
Category: Includes:
1
2
3
• ac power lines
• high-power digital ac I/O lines
• high-power digital dc I/O lines
• power connections (conductors) from motion drives to motors
• analog I/O lines and dc power lines for analog circuits
• low-power digital ac/dc I/O lines
• low-power digital I/O lines
•
ControlNet communication cables
• low-voltage dc power lines
• communication cables to connect between system components within the same enclosure
Publication 1786-6.2.1 - April 1988
2-16 Planning A ControlNet Cable System
General Wring Guidelines
)ROORZWKHVHJXLGHOLQHVIRUZLULQJDOO&RQWURO1HWFDEOHV
• ,ILWPXVWFURVVSRZHUIHHGOLQHVLWVKRXOGGRVRDWULJKWDQJOHV
• 5RXWHDWOHDVWPIWIURPKLJKYROWDJHHQFORVXUHVRUVRXUFHV
RIUIPLFURZDYHUDGLDWLRQ
• ,IWKHFRQGXFWRULVLQDPHWDOZLUHZD\RUFRQGXLWHDFKVHFWLRQRI
WKDWZLUHZD\RUFRQGXLWPXVWEHERQGHGWRHDFKDGMDFHQWVHFWLRQVR
WKDWLWKDVHOHFWULFDOFRQWLQXLW\DORQJLWVHQWLUHOHQJWKDQGPXVWEH
ERQGHGWRWKHHQFORVXUHDWWKHHQWU\SRLQW
)RUPRUHLQIRUPDWLRQRQJHQHUDOZLULQJJXLGHOLQHVVHHWKH
,QGXVWULDO$XWRPDWLRQ:LULQJDQG*URXQGLQJ*XLGHOLQHV SXEOLFDWLRQ
No
:LULQJ([WHUQDO7R(QFORVXUHV
&DEOHVWKDWUXQRXWVLGHSURWHFWLYHHQFORVXUHVDUHUHODWLYHO\ORQJ
7RPLQLPL]HFURVVWDONIURPQHDUE\FDEOHVLWLVJRRGSUDFWLFHWR
PDLQWDLQPD[LPXPVHSDUDWLRQEHWZHHQWKH&RQWURO1HWFDEOHDQGRWKHU
SRWHQWLDOQRLVHFRQGXFWRUV<RXVKRXOGURXWH\RXUFDEOHIROORZLQJ
WKHVHJXLGHOLQHV
Cable in a contiguous metallic wireway or conduit?
Yes
Route your cable at least:
0.08m (3”)
0.15m (6”)
0.3m (12”)
0.15m (6”)
0.3m (12”)
0.6m (24”)
From noise sources of this strength:
Category-1 conductors of less than 20A ac power lines of 20A or more, up to 100 KVA ac power lines greater than 100 KVA
Category-1 conductors of less than 20A ac power lines of 20A or more, up to 100 KVA ac power lines greater than 100 KVA
:LULQJ,QVLGH(QFORVXUHV
&DEOHVHFWLRQVWKDWUXQLQVLGHSURWHFWLYHHTXLSPHQWHQFORVXUHVDUH
UHODWLYHO\VKRUW$VZLWKZLULQJH[WHUQDOWRHQFORVXUHV\RXVKRXOG
PDLQWDLQPD[LPXPVHSDUDWLRQEHWZHHQ\RXU&RQWURO1HWFDEOHDQG
&DWHJRU\FRQGXFWRUV
:KHQ\RXDUHUXQQLQJFDEOHLQVLGHDQHQFORVXUHURXWHFRQGXFWRUV
H[WHUQDOWRDOOUDFHZD\VLQWKHVDPHHQFORVXUHRULQDUDFHZD\VHSDUDWH
IURP&DWHJRU\FRQGXFWRUV
From noise sources of this strength: Route your cable at least this distance:
0.08m (3”)
0.15m (6”)
0.6m (24”)
Category 1 conductors of less than 20A ac power lines of 20A or more, up to 100 KVA ac power lines greater than 100 KVA
Publication 1786-6.2.1 - April 1988
Planning A ControlNet Cable System 2-17
6XUJH6XSSUHVVLRQ
7UDQVLHQWHOHFWURPDJQHWLFLQWHUIHUHQFHHPLFDQEHJHQHUDWHG
ZKHQHYHULQGXFWLYHORDGVVXFKDVUHOD\VVROHQRLGVPRWRUVWDUWHUV
RUPRWRUVDUHRSHUDWHGE\³KDUGFRQWDFWV´VXFKDVSXVKEXWWRQRUVHOHFWRU
VZLWFKHV7KHVHZLULQJJXLGHOLQHVDVVXPH\RXJXDUG\RXUV\VWHP
DJDLQVWWKHHIIHFWVRIWUDQVLHQWHPLE\XVLQJVXUJHVXSSUHVVRUVWR
VXSSUHVVWUDQVLHQWHPLDWLWVVRXUFH
,QGXFWLYHORDGVVZLWFKHGE\VROLGVWDWHRXWSXWGHYLFHVDORQHGRQRW
UHTXLUHVXUJHVXSSUHVVLRQ+RZHYHULQGXFWLYHORDGVRIDFRXWSXW
PRGXOHVWKDWDUHLQVHULHVRUSDUDOOHOZLWKKDUGFRQWDFWVUHTXLUH
VXUJHVXSSUHVVLRQWRSURWHFWWKHPRGXOHRXWSXWFLUFXLWVDVZHOODVWR
VXSSUHVVWUDQVLHQWHPL
)HUULWH%HDGV
)HUULWHEHDGVFDQSURYLGHDGGLWLRQDOVXSSUHVVLRQRIWUDQVLHQWHPL
)DLU5LWH3URGXFWV&RUSRUDWLRQPDQXIDFWXUHVDIHUULWHEHDG
SDUWQXPEHUZKLFKFDQEHVOLSSHGRYHUFDWHJRU\DQG
FDWHJRU\5*W\SHWUXQNFDEOHFRQGXFWRUV<RXFDQVHFXUHWKHP
ZLWKKHDWVKULQNWXELQJRUWLHZUDSV$FDEOHWUDQVLHQWHPLLQGXFHG
RQWRWKHFDEOHFDQEHVXSSUHVVHGE\DIHUULWHEHDGORFDWHGQHDUWKHHQG
RIWKHFDEOH7KHIHUULWHEHDGZLOOVXSSUHVVWKHHPLEHIRUHLWHQWHUVWKH
HTXLSPHQWFRQQHFWHGWRWKHHQGRIWKHFDEOH
Publication 1786-6.2.1 - April 1988
2-18 Planning A ControlNet Cable System
Ordering Components
1RZWKDW\RXDUHUHDG\WREHJLQRUGHULQJFRPSRQHQWVXVHWKHVH
JXLGHOLQHVWRKHOS\RXVHOHFWFRPSRQHQWV
General Planning
7KH&RQWURO1HWFDEOHV\VWHPLVLVRODWHGIURPHDUWKDQG PXVW EH
SURWHFWHGIURPLQDGYHUWHQWJURXQGFRQQHFWLRQV
Segment Planning
• DOOFRQQHFWLRQVWRWKHWUXQNFDEOHUHTXLUHDWDS
• WDSVPD\EHLQVWDOOHGDWDQ\ORFDWLRQRQWKHWUXQNFDEOH
• WDSGURSFDEOHOHQJWKPXVWQRWEHFKDQJHG
• PD[LPXPQXPEHURIWDSV ZLWKPIWRIVWDQGDUG5*
WUXQNFDEOH
• PD[LPXPQXPEHURIWDSV ZLWKPIWRI5*)
KLJKIOH[WUXQNFDEOH
• PD[LPXPWUXQNFDEOHOHQJWKRIVWDQGDUG5*WUXQNFDEOH P
IWZLWKWDSV
• PD[LPXPWUXQNFDEOHOHQJWKRIKLJKIOH[5*)WUXQNFDEOH P
IWZLWKWDSV
• Ω WHUPLQDWRUVDUHUHTXLUHGRQERWKHQGV
• RQHWDSZLWKDQXQFRQQHFWHGGURSFDEOHPD\EHLQVWDOOHGIRU
PDLQWHQDQFHSXUSRVHV
• XVH%1&EXOOHWFRQQHFWRUVDWIXWXUHWDSORFDWLRQV
• GRQRWPL[UHGXQGDQWDQGQRQUHGXQGDQWQRGHV
• XVHGXPP\ORDGV7&$3IRUDOORWKHUXQFRQQHFWHGGURS
FDEOHV
• DYRLGKLJKQRLVHHQYLURQPHQWVZKHQURXWLQJFDEOHV
Link Planning
• PD[LPXPRIQRGHVH[FOXGLQJUHSHDWHUV
• UHSHDWHUVUHTXLUHDWDSEXWDUHQRWFRXQWHGDVQRGHV²WKH\DUH
LQFOXGHGLQWKHQXPEHURIGHYLFHVDOORZHGSHUVHJPHQW
• UHSHDWHUVPD\EHLQVWDOOHGDWDQ\WDSORFDWLRQDORQJDVHJPHQW
• WKHUHFDQRQO\EHRQHSDWKEHWZHHQDQ\WZRSRLQWVRQDOLQN
• WKHFRQILJXUDWLRQRIERWKVLGHVRIDUHGXQGDQWVHJPHQWPXVWEHWKH
VDPH
• WKHWRWDOFDEOHGLIIHUHQFHEHWZHHQWKHWZRVLGHVRIDUHGXQGDQWOLQN
FDQQRWH[FHHGPIW
Publication 1786-6.2.1 - April 1988
Planning A ControlNet Cable System 2-19
Next
Ordering Parts
Item
Tap straight T-tap straight Y-tap right angle T-tap right angle Y-tap
Cat. No.
1786-TPS
1786-TPYS
1786-TPR
1786-TPYR
Guidelines
You need a tap for each connection to the trunk cable (nodes and repeaters).
Each tap kit contains: two BNC connector kits, 1 dust cap, 1 universal mounting bracket, ControlNet cable labels and
2 screws
Use a repeater to:
• increase the number of nodes attached
• extend the allowable cable length
Quantity needed number of repeaters x 2
+ number of nodes
repeater 85-250V ac or 110-250V dc
20-72V dc
1786-RPT
1786-RPTD terminators network access cable cable connector cable connectors barrel
isolated-bulkhead right angle extender trunk cable tap dummy load coax tool kit
1786-XT
(quantity of 50)
1786-CP
1786-BNC
(quantity of 50)
1786-BNCJ
1786-BNCP
You need a terminator for each end of each segment.
Use this cable to temporarily connect programming devices (through NAPs) to ControlNet nodes.
Two cable connectors are shipped with each tap — you need to order additional cable connectors for each bullet and isolated-bulkhead connector you will be using.
Use these as specified on page 12.
number of segments x 2 number of programming devices number of bullet connectors x 2
+ number of isolated-bulkhead connectors x 2
+ any spares depends on your network requirements
1786-BNCJI
(all are quantity of 50)
For right angle and extender connector part numbers, see the
ControlNet Cable System Component List (publication AG-2.2).
1786-TCAP
(quantity of 5)
1786-CTK
Use the ControlNet Cable System
Component List (publication AG-2.2) to order your required length of cable.
Use the dummy load to plug into drop cables that are not attached to a node
Use the tool kit to create your create your trunk cable to your specifications
See page 4 to select your cable
type.
to determine cable length.
one for every drop cable that is not attached to a node one
You will need to double your quantities when ordering components for a redundant cable system.
The connector kit may be shipped with two ferrules. The smaller diamater ferrule should not be used with ControlNet applications.
$IWHUJDWKHULQJDOORIWKHSDUWVIRU\RXU&RQWURO1HWFDEOHV\VWHP\RX
DUHUHDG\WREHJLQLQVWDOOLQJ\RXUQHWZRUN*RWRFKDSWHU
Publication 1786-6.2.1 - April 1988
Contents
Installing The Trunk Cable
Chapter
Installing A ControlNet Cable System
3
Follow the instructions in this chapter to install your ControlNet cable system.
To: install the trunk cable mount the taps install a repeater install cable connectors connect cable segments terminate the segment connect devices
See page:
3-4
Important:
You should have read chapter 2, Planning a ControlNet
Network, before you install your network.
Install your trunk cable, observing your cable supplier’s installation instructions and these guidelines.
Wiring External To Enclosures
When the RG-6 type coax cable is being pulled through multiple conduit bends, follow these specifications.
For this coax cable: The pull strength should not exceed:
PVC
FEP
42.75kg (95lbs)
61.65kg (137lbs)
The bend radius should not exceed:
76.2mm (3.0”)
69.9mm (2.75”)
Wiring Inside Enclosures
When the RG-6 type coax cable is not being pulled through conduit, follow these specifications.
For this coax cable:
PVC
FEP
Tap drop-cable
The bend radius should not exceed:
38.1mm (1.5”)
35.6mm (1.4”)
25.4mm (1.0”)
Publication 1786-6.2.1 - April 1998
3-2 Installing A ControlNet Cable System
Mounting The Taps
To mount the taps you:
• select where you want to mount the taps
• mount the taps
Selecting Where To Mount The Taps
•
There is no spacing requirement between taps; you can install two adjacent taps if necessary by using a barrel connector (1786-BNCP).
•
Make sure the mounting location is convenient for your cable routing.
•
Make sure the mounting location does not cause any cable
bend-radii to exceed the limits listed on page 3-1.
•
Do not mount the tap in a position that routes the drop cable over any ac power terminals on nearby modules.
!
ATTENTION: Do not allow any metal portions of the tap, such as the universal mounting bracket screws or connectors, to contact any conductive material.
This contact could cause noise on the network.
Mounting The Taps
You can mount your ControlNet taps (Y-tap and T-tap):
• to a universal mounting bracket, and then mount the tap and bracket as an assembly
• through the body holes in the tap using:
± VFUHZVDQGIODWZDVKHUV
± DWLHZUDS
See appendix A for universal mounting bracket and tap mounting
dimensions.
Publication 1786-6.2.1 - April 1998
Installing A ControlNet Cable System 3-3
Mounting A Tap Using A Universal Mounting Bracket
1.
Align the universal mounting bracket with the mounting holes on the tap.
2.
Using the screws provided with the tap, attach the tap to the universal mounting bracket.
Y-Tap universal mounting bracket
T-Tap dust cap dust cap universal mounting bracket
(provided with tap)
20084-m
Use only the screws that are packaged with the tap. They are the proper length and head style.
3.
Mount the tap and bracket assembly to: a DIN mounting rail universal mounting bracket
Mount the universal mounting bracket on specified Allen-Bradley mounting rails or DIN rails #3 style symmetrical (35mm X
7.5mm) or another mounting surface
Use four screws to attach the universal mounting bracket to another mounting surface.
universal mounting bracket
DIN rail
20081-m suitable fixture
Type of rail
A-B rail
Cat. No.
1492-N1
1492-N22
1492-N44
Type of Rail
DIN rail #3
Cat. No.
199-DR1
1492-DR5
1492-DR6
1492-DR7
20082-m
Publication 1786-6.2.1 - April 1998
3-4 Installing A ControlNet Cable System
Mounting A Tap Through The Body Holes
Mount the tap to a suitable fixture using: body holes body holes tie wrap screws and flat washers
You can use a variety of screw types.
Installing a Repeater
20083-m
!
ATTENTION: Do not over tighten the screws. Over tightening the screws can damage the tap. The applied torque should be 0.2-0.4 Nm (1-2 ft-lbs).
Important: The suitable fixture can be conductive and/or grounded because of the electrical isolation provided by these body holes.
To install a repeater, you: read European Union Directive Compliance — optional (read if you are installing the repeater within the European Union or EEA regions) select where to mount the repeater(s) mount the repeater ground the repeater connect power and relay circuitry (optional)
See page:
Publication 1786-6.2.1 - April 1998
Installing A ControlNet Cable System 3-5
European Union Directive Compliance
If this product is installed within the European Union or EEA regions and has the CE mark, the following regulations apply.
EMC Directive
This product is tested to meet Council Directive 89/336
Electromagnetic Compatibility (EMC) using a technical construction file and the following standards, in whole or in part:
•
EN 50081-2EMC - Generic Emission Standard, Part 2 - Industrial
Environment
•
EN 50082-2EMC - Generic Immunity Standard, Part 2 - Industrial
Environment
The product described in this manual is intended for use in an industrial environment.
Low Voltage Directive
This product is also designed to meet Council Directive 73/23 Low
Voltage, by applying the safety requirements of EN 61131-2
Programmable Controllers, Part 2 - Equipment Requirements and
Tests.
For specific information that the above norm requires, see the appropriate sections in this manual, as well as the following
Allen-Bradley publications:
•
Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1
•
Guidelines for Handling Lithium Batteries, publication AG-5.4
•
Automation Systems Catalog, publication B111
Selecting Where To Mount The Repeater(s)
The repeater should be mounted:
• so that air can flow in/out of the air holes on the top and bottom of the repeater — for proper ventilation, make sure there is a minimum of 5.1cm (2”) from surrounding equipment
• in a NEMA enclosure to provide protection from dust, moisture or corrosive atmospheres
• to a grounded metal plate if possible
Publication 1786-6.2.1 - April 1998
3-6 Installing A ControlNet Cable System
Mounting The Repeater
Use these mounting dimensions to mount the repeater horizontally or vertically in the area you selected.
38.1mm
(1.50")
9.1mm
(0.36")
8.6 mm
(0.34")
19.3 mm
(0.76")
9.3 mm
(0.38")
215.9mm
(8.5")
197.6 mm
(7.78")
196.6mm
(7.74")
12.77 mm
(0.50")
101.6 mm
(4.0")
20753-m 50.8 mm
(2.0")
Grounding The Repeater
Use a #14 AWG wire to connect the repeater to the ground bus.
Keep this lead as short as possible.
star washer nut grounding stud ground lug
20742-m
Publication 1786-6.2.1 - April 1998
Installing A ControlNet Cable System
Connecting Power And Relay Circuitry
1.
Remove the terminal strip cover.
3-7
20743a-m
2.
Connect power to the repeater.
1786 -RPT 1786 -RPTD
L1
L2/N
(+)
(-)
20744-m
If you are using high voltage DC to power the 1786-RPT,
L1 is positive (+) and L2/N is negative (-).
Using the fault relay terminals?
Go to step: yes 3 no 4
Publication 1786-6.2.1 - April 1998
3-8 Installing A ControlNet Cable System
3.
Connect your relay circuitry to the fault relay terminals.
4.
Replace the terminal strip cover.
L1
L2/N contact held closed in normal operation
20145-m
20746-m
Publication 1786-6.2.1 - April 1998
Installing Cable Connectors
wire cutters crimp tool knife calibration tool
Installing A ControlNet Cable System 3-9
After you have mounted the taps, you need to attach cable connectors to the ends of your trunk-cable sections.
To: collect your tools strip the cable test for electrical shorts and continuity attach the cable connectors test for electrical shorts and continuity
See page:
Collecting Your Tools
To install the cable connectors, we recommend you use the tools in the
ControlNet Coax Toolkit (cat. no. 1786-CTK).
ControlNet Network
Component List
(AG-2.2)
ControlNet Network
Coax Cable Planning and Installation Manual
(1786-6.2.1) cable strip tool with two blade cassettes (one for PVC and one for FEP) terminators and extra connectors memory blade holder (FEP-CL2P) memory blade cartridges (contains two sets of memory blades
!
ATTENTION: Make sure to perform the calibration procedure the first time you use the tool and every time you change the blade for both memory cartridges.
Refer to Appendix B for the proper calibration
procedure.
Publication 1786-6.2.1 - April 1998
3-10 Installing A ControlNet Cable System
Stripping The Cable
When cutting cable sections, make them long enough to route from one tap to the next with sufficient slack so that the bend radius is not less than:
•
76.2mm (3”) for wiring external to enclosures
•
38.1mm (1.5”) for wiring inside enclosures
!
ATTENTION: Make sure to perform the calibration procedure the first time you use the tool and every time you change the blade for both memory cartridges.
Refer to Appendix B for the proper calibration
procedure.
1.
Verify that you have the proper memory blade holder installed for the type of cable you are using (PVC-CL2 or FEP-CL2P). If you
need to change the memory blade holder, see appendix B.
blade holder
20165
2.
Insert the cable into the cable strip tool’s cutting chamber so that extra cable, approximately 25.4mm (1”), extends beyond the edge of the tool.
25.4 mm (1") extra cable
The cutting chamber houses the center that will be exposed when the cable is stripped.
cable
20073
Publication 1786-6.2.1 - April 1998
Installing A ControlNet Cable System
3.
Lock the cable into place by moving the chamber-gauge ring forward until it meets the cable with slight resistance.
3-11
This guage moves two rollers toward the cable and regulates the depth of the cut.
The gauge will "click" as it moves from one gauge to the next.
20073
4.
Holding the cable in one hand, place the index finger of your other hand inside the chamber-gauge ring and turn the strip tool 360° around the cable. Make 4 or 5 full rotations until the strip tool glides easily around the cable.
Continue repeating steps 3 and 4, moving the chamber gauge ring forward one notch for each time you repeat the steps, until you reach the last notch.
Each time you move the chamber gauge ring forward a notch, the strip tool makes a deeper cut into the cable.
20074
Important: On your last repetition of steps 3 and 4, apply sufficient pressure on the chamber gauge ring to make sure the ring has reached the last stage.
Publication 1786-6.2.1 - April 1998
3-12 Installing A ControlNet Cable System
5.
After you have moved the chamber gauge ring to the last position and turned the strip tool the final time:
A. move the chamber-gauge ring backward to release the strip tool, and remove it from the cable.
B. strip away the appropriate portion of the cable,
without using the strip tool.
Clean the remaining cable parts from the strip chamber after each use.
20075
This should appropriately strip the cable, exposing these layers of the cable: all 4 shield layers— braid/tape/braid/tape white insulation or 1st tape center conductor
8.3 mm
3.7 mm
4.0 mm
20076a
Important: If you do not see the three distinct layers of cable, snip off the exposed end with the wire cutters and repeat the entire cable-stripping process.
If stripping problems persist, the strip tool may need adjustment.
See appendix B for instructions on how to adjust the strip tool.
If you are using: Go to:
FEP cable
PVC cable step 6 step 7
Publication 1786-6.2.1 - April 1998
Installing A ControlNet Cable System 3-13
6.
If you are using plenum FEP cable, cut off an additional 3.1mm
(approximately 1/8”) of the outer sheath with the knife from the toolkit.
all 4 shield layers— braid/tape/braid/tape white insulation or 1st tape center conductor sheath
11.44 mm
3.7 mm
4.0 mm
20076a
7.
Make sure the center conductor is 4.0mm. Use the imprint guide on the back of the ControlNet tap or the calibration tool to verify this.
T-tap
8.3 mm 3.7 mm
4.0 mm
PVC Cable
PVC cable only center conductor
PVC/CL2
1786RG6 calibration tool
FEP/CL2P
The center conductor should be 4.0 mm exactly. If the center conductor is too long, cut off the excess with the wire cutter from the cable kit. If it is too short, repeat the entire cable stripping process.
!
Use this end of the calibration tool to verify proper measurements for FEP cable
ATTENTION: Check for any braid stranding that may not have been cut at the proper length. Even one strand coming in contact with the center conductor could short out the cable. If any such strands are found, cut them to the correct length.
Publication 1786-6.2.1 - April 1998
3-14 Installing A ControlNet Cable System
Testing For Electrical Shorts And Continuity
1.
Using an ohmmeter or continuity tester, test for a short between the center conductor and the shield.
ohmmeter
If resistance reading indicates: there is no short that a short exists
Then: continue to step 2 inspect the ends of the cable for shorted circuits— if you are unable to locate a short, replace the trunk-cable section
20166-i
2.
Connect a temporary short between the center conductor and the shield at one end of the cable.
20166-i
3.
At the other end of the cable, use an ohmmeter or continuity tester to test for electrical continuity.
If resistance reading indicates: there is no short that a short exists
Then: replace the trunk-cable section continue to next section
20166-i
Important: Replace the trunk-cable section if problems persist with the cable after completing these tests.
Publication 1786-6.2.1 - April 1998
Installing A ControlNet Cable System 3-15
Attaching The Connectors To The Cable
1.
Slip the crimp ferrule onto the cable. Push it back to the sheath area of the cable to keep it out of the way for the moment. crimp ferrule stripped cable
20077a
2.
Place the center pin over the center conductor. center conductor
20077a center pin
Important: Make sure that the center pin slips onto the center conductor completely. The back shoulder of the center pin should be up against the white insulation.
If it is not, recheck the length of the center conductor.
3.
With the center pin in place, use the crimp tool to crimp the pin into place.
The smaller hexagonal crimping notch is for crimping the center pin onto the center connector.
20167
4.
Slide the ControlNet connector onto the cable.
braid and tape shield connector base
77002c connector
Publication 1786-6.2.1 - April 1998
3-16 Installing A ControlNet Cable System
5.
Move the connector in a circular motion (without any inward
pressure) to work the connector base underneath the three outer shields. Once a gap has opened up between the inner shield tape and the three outer shields, start applying inward pressure to seat the connector base under the three outer shields (braid/tape/braid).
The wire is pliable and may fray slightly.
20077d
6.
Slide the crimp ferrule over the three outer shields and connector base until it meets the shoulder on the connector.
20077e
7.
Using the crimp tool, crimp the ferrule. Position the crimp tool on the ferrule as close as possible to the connector base and ferrule meeting line. Press the tool tightly around the ferrule until the crimp tool allows release.
The larger hexagonal crimping notch is for crimping the ferrule which holds the connector to the cable crimp ferrule
Important: Many network problems are due to improperly installed connectors. You should have tight-fitting connectors on the ends of all your cables. Pull the connector to verify that it is attached. If it is loose or comes off, snip off the connector and install a new one.
Publication 1786-6.2.1 - April 1998
Installing A ControlNet Cable System 3-17
Testing For Electrical Shorts and Continuity
1.
Using an ohmmeter or continuity tester, test for a short between the connector body and pin.
ohmmeter
If resistance reading indicates: there is no short that a short exists
Then: continue to next section use your wire cutters to cut off the connector, install a new connector and begin testing again.
connector body
20166 pin
2.
Connect a temporary short between the pin and connector body at one end of the cable.
connector body
20166 pin
3.
At the other end of the cable, use an ohmmeter or continuity tester to test for electrical continuity. ohmmeter
If resistance reading indicates: there is no short that a short exists
Then: continue to next section use your wire cutters to cut off the connector, install a new connector and begin testing again.
connector body
20166 pin
Important: Replace the trunk-cable section if problems persist with the cable after completing these tests.
Publication 1786-6.2.1 - April 1998
3-18 Installing A ControlNet Cable System
Connecting Cable Sections
Connect the cable sections to the tap’s BNC connectors.
Terminating Segments
20078
The taps on the ends of the segment have only one cable connector attached to them. This leaves an open, or unterminated, end on the segment. Signals transmitted along the cable will reflect off these unterminated ends and interfere with transmission.
To eliminate signal reflections from the ends of the segment, you must attach a 75
Ω
terminator to the first and last taps on the segment. The terms “first” and “last” refer to the physical location of the node along the trunk cable.
1.
Connect one end of the trunk-cable section to one of the tap’s
BNC connectors.
20078
2.
Install a 75
Ω
terminator onto the tap’s other BNC connector.
1786-XT
Repeat steps 1 and 2 at the other end of the segment
20079
Publication 1786-6.2.1 - April 1998
Connecting Devices
Installing A ControlNet Cable System 3-19
After terminating your segments, you connect your devices.
To connect a programming terminal through the NAP repeater
ControlNet processor, adapter or programming terminal via a communication interface
See
procedure below
1.
Remove and save the tap’s dust cap (located on the straight or right-angle connector).
2.
Connect the tap’s straight or right-angle connector to your device.
If your node supports: Connect the tap’s straight or right-angle connector: non-redundant media to the channel A connector on the device (channel B is not used)
1 redundant media
• from trunk cable A to channel A on the your device
• from trunk cable B to channel B on the your device
1 While both channels are active, Allen-Bradley recommends using channel A for non-redundant media.
Connecting Programming Terminals Through NAP
Use the ControlNet™ network access cable (1786-CP) to connect a programming terminal to any intelligent device (i.e. workstation,
PLC
®
processor, or adapter) on a ControlNet link through the network access port (NAP ).
1.
Connect one end of the 1786-CP cable to the NAP on the front of the ControlNet node.
Publication 1786-6.2.1 - April 1998
3-20 Installing A ControlNet Cable System
2.
Connect the other end of the 1786-CP cable to the NAP on the
ControlNet communication interface installed in (or connected to) your programming terminal.
!
ATTENTION: Do not use the 1786-CP cable as shown below. These connections could result in network failures.
do not use the 1786-CP cable to connect your programming device to ControlNet two ways simultaneously
1786-CP
1786-CP do not use the 1786-CP cable to connect a scanner or adapter module to a PLC processor
1786-CP
1786-CP do not use the 1786-CP cable to connect two separate ControlNet segments
20140
Publication 1786-6.2.1 - April 1998
Installing A ControlNet Cable System 3-21
Connecting The Repeater To A ControlNet Link
1.
Remove (and save) the dust cap located on the straight or right-angle connector of the designated tap on the first segment (segment 1).
!
ATTENTION: Do not allow any metal portions of the tap to contact any conductive material. This contact can cause noise on the network.
If you disconnect the tap from the repeater, place the dust cap back on the straight or right-angle connector to prevent the connector from accidentally contacting a metallic grounded surface.
segment 1 tap dust cap
20093-i
2.
Remove and discard the dust caps from the repeater BNC jacks.
3.
Connect the designated tap’s straight or right-angle connector to the
BNC connector on the repeater. segment 1 tap
To prevent reversal of the tap connections (resulting in incorrect
LED displays and troubleshooting), check the tap drop cable for a label indicating the attached segment before making your connection.
20093-i
Publication 1786-6.2.1 - April 1998
3-22 Installing A ControlNet Cable System
4.
Remove (and save) the dust cap located on the straight or right-angle connector of the designated tap on the second segment (segment 2). segment 2 tap dust cap
20093-i
5.
Connect this tap’s straight or right-angle connector to the BNC connector on the repeater.
segment 2 segment 1 tap tap
20093-i
Publication 1786-6.2.1 - April 1998
Contents
Taps
33.02 mm
(1.30")
Appendix
A
Mounting Dimensions
Use these mounting dimensions to mount your taps, universal mounting brackets, and repeaters.
T-tap
35.66 mm
(1.40")
15.24 mm
(0.60")
Make copies of these templates as necessary to help you mark placement for your taps.
Y-tap
30.23 mm
(1.19")
15.24 mm
(0.60")
25.44 mm
(1.00")
39.37 mm
(1.55")
31.37 mm
(1.235")
20168
20169
Publication 1756-6.5.9 - September 1997
A-2 Mounting Dimensions
Universal Mounting Bracket
Repeater
58.42 mm
(2.30")
49.53 mm
(1.95")
30.94 mm
(1.128")
19.05 mm
(0.75")
15.47 mm
(0.609")
9.53 mm
(0.375")
20170-m
38.1 mm
(1.50")
9.1 mm
(0.36")
8.6 mm
(0.34")
19.3 mm
(0.76")
9.3 mm
(0.38")
215.9 mm
(8.5")
197.6 mm
(7.78")
196.6 mm
(7.74")
12.7 mm
(0.5")
50.8 mm
(2.0")
101.6 mm
(4.0")
Publication 1756-6.5.9 - September 1997
Adjusting The Cable Strip Tool
Appendix
%
Contents
)ROORZWKHLQVWUXFWLRQVLQWKLVDSSHQGL[WRFDOLEUDWHWKHFDEOHVWULSWRRO
VXSSOLHGZLWKWKH&RQWURO1HW&RD[7RRONLW &7.
Calibrating The Cutting Blades
8VHWKHIROORZLQJSURFHGXUHWRFDOLEUDWH\RXUFDEOHVWULSWRROWRFXW
)(3RU39&FDEOH
3ODFHWKHFDOLEUDWLRQWRROLQWRWKHFDEOHVWULSWRROZLWKWKHQDUURZ
HQGLQVWDOOHGDQGIDFLQJIRUZDUGIRU)(3FDEOHXVHWKHZLGHUHQG
IRU39& calibration tool
To Turn the screw increase the cut depth clockwise decrease the cut depth counterclockwise adjusting screws
2088-m
7LJKWHQWKHKDQGOHRIWKHVWULSWRROVRWKDWWKHFDOLEUDWLRQWRROLV
ORFNHGLQSODFH
,PSRUWDQW :KHQDOLJQHGSURSHUO\WKHJURRYHVRIWKHFDOLEUDWLRQWRRO
VKRXOGDOLJQZLWKWKHEODGHV
Publication 1786-6.2.1 — April 1998
B-2 Adjusting The Cable Strip Tool
$GMXVWWKHVFUHZVRIWKHPHPRU\FOLSVRWKDWWKHEODGHVMXVWWRXFK
WKHFDOLEUDWLRQWRRO
$77(17,21 'RQRWRYHUWLJKWHQWKHVFUHZVRIWKH
FDEOHVWULSWRRO7KHEODGHVVKRXOGQRWEHQGVKLIWRU
SHQHWUDWHWKHFDOLEUDWLRQWRRO
5HWUDFWWKHKDQGOHRIWKHFDEOHVWULSWRRO
5HPRYHWKHFDOLEUDWLRQWRROIURPWKHFDEOHVWULSWRRO
:KHQILQLVKHGWKHEODGHVKRXOGPDNHDFXWRIWKHIROORZLQJGLPHQVLRQV
LQ\RXUFDEOH
2 white insulation or 1st tape
1 all 4 shield layers— braid/tape/braid/tape
3 center conductor
30030-m
8.3 mm
1
3.7 mm
4.0 mm
2 3
The first cut should cut the outer sheath without cutting the outer wire braid. If the braid is frayed by the blade, adjust the blade slightly to eliminate the fraying.
The second cut should cut the sheath, three outer shields, and possibly the inner tape shield. The insulation can be scored slightly, but should not have a deep cut.
The third cut should cut all layers of the cable down to the center conductor. This cut should not score the center conductor. If the blade leaves a mark on the conductor, adjust the blade slightly so to eliminate marking the conductor
,PSRUWDQW 7KHILUVWDQGVHFRQGFXWDGMXVWPHQWVQHHGWREHSUHFLVH
$GMXVWPHQWVDVVPDOODVWRRIDWXUQFDQPDNH
WKHGLIIHUHQFHEHWZHHQDSHUIHFWDQGDQLPSHUIHFWFXW
Publication1786-6.2.1 — April 1998
Reversing/Replacing
The Cutting Blades
Adjusting The Cable Strip Tool
7RUHYHUVHRUFKDQJHWKHFXWWLQJEODGHV
8VHDVFUHZGULYHUWROLIWWKHPHPRU\EODGHKROGHUDQGVZLQJ
LWEDFN
B-3
20182-m
6OLGHWKHPHPRU\EODGHFDUWULGJHRXWRIWKHVWULSWRRO
20183-m
If you are reversing the memory blade cartridge to use the second set of blades replacing the memory blade cartridge
Go to step 3 step 4
Publication 1786-6.2.1 — April 1998
B-4 Adjusting The Cable Strip Tool
)OLSWKHPHPRU\EODGHFDUWULGJHDQGVOLGHLWEDFNLQWRWKH
VWULSWRRO
30031-m
*RWRVWHS
$OLJQWKHPHPRU\EODGHFDUWULGJHWKHVLGHZLWKWKHUDLVHGQRWFKHV
WRWKHUDLVHGDUHDRQWKHLQVLGHRIWKHVWULSWRRODQGVOLGHWKHQHZ
PHPRU\EODGHFDUWULGJHLQ² WKHEODGHVVKRXOGEHRQWRSDV\RX
VOLGHWKHFDUWULGJHLQ raised notch raised area
30031a-m
6ZLQJWKHPHPRU\EODGHKROGHUFORVHG
20069-m
Publication1786-6.2.1 — April 1998
Adjusting The Cable Strip Tool B-5
Changing The Memory Blade
Holder
<RXUHFHLYHGWZRPHPRU\EODGHKROGHUVZLWK\RXUFDEOHVWULSWRRORQH
LVIRU39&&/FDEOHDQGWKHRWKHULVIRUSOHQXP)(3&/3FDEOH
<RXQHHGWRLQVWDOOWKHDSSURSULDWHPHPRU\EODGHKROGHUIRUWKHW\SH
RIFDEOH\RXDUHVWULSSLQJ39&RU)(3
/LIWWKHODWFKHVRQWKHPHPRU\EODGHKROGHUDQGVZLQJLWEDFN
20182-m
6QDSWKHPHPRU\EODGHKROGHURIIWKHURGDQGUHPRYHLWIURPWKH
VWULSWRRO
20070-m
3RVLWLRQWKHDSSURSULDWHPHPRU\EODGHKROGHURQWKHURGDQGVQDS
WKHKROGHULQWRSODFH
6ZLQJWKHPHPRU\EODGHKROGHUFORVHG
20069-m
Publication 1786-6.2.1 — April 1998
Symbols
A
abbreviations, 4
application considerations, 2-14
B
BNC cable connectors, 1-4, 2-11
bullet connector, 2-1, 2-11, 2-18
C
barrel, 2-11, 2-18 bullet, 2-11, 2-18 extender, 2-18
catalog numbers
categories of conductors, 2-14
ControlNet cable system
application considerations, 2-14
attaching connectors to trunk ca-
cable connector
cable connectors, 1-4, 2-11, 2-18
Index
connecting cable sections, 3-18
connecting programming termi-
determine
number of terminators needed,
trunkcable section lengths, 2-4
type of cable connectors need-
installing
network access cable, 2-2, 2-18
ordering components, 2-17 planning guidelines, 2-17
related publications, 5
connecting power and relay
grounding, 3-6 mounting dimensions, 3-6
testing for electrical continuity,
wiring external to enclosures,
Publication 1786-6.2.1 - April 1998
2 Index
Publication 1786-6.2.1 - April 1998
2-15 wiring inside enclosures, 2-15
trunkcable section, 1-1, 1-3, 2-4
universal mounting bracket
ControlNet Coax Toolkit
adjusting the cutting blades,
changing the memory blade
E
extender cable connector, 2-18
F
FEP cable, 4, 2-3, 3-1, 3-10, 3-12, B-5
G
I
installing cable connectors attaching connectors to trunk ca-
isolated bulkhead connector, 2-11,
L
M
media
mounting dimensions
universal mounting bracket, A-2
N
O
P
programming terminals
ways to connect to a ControlNet
publications, 5
1770-6.5.20, 5
1771-6.5.110, 5
1784-5.20, 5
1785-6.2.1, 5
1785-6.5.14, 5
1785-7.1, 5
1785-7.4, 5
1786-2.3, 5
1786-2.6, 5
1786-2.7, 5
1794-5.8, 5
6200-6.4.11, 5
6200-6.4.12, 5
6200-6.4.20, 5
6200-6.4.6, 5
6200-6.4.7, 5
AG-2.2, 5, 1-2, 2-3, 2-11, 2-18
PVC cable, 4, 2-3, 3-1, 3-10, 3-12, B-5
R
connecting power and relay cir-
connecting to a ControlNet link,
European Union directive compli-
Index
installed in series and parallel, 2-10
repeater configurations
installed in series and parallel, 2-10
rightangle connector, 2-11, 2-18
S
strip tool
adjusting the cutting blades, B-1
changing the memory blade hold-
reversing/replacing cutting blades,
T
to a universal mounting brack-
attaching cable connectors, 3-15
bend radius, 3-1 installing, 3-1 pull strength, 3-1
testing for shorts and continuity,
wiring external to enclosures, 2-15,
3-1 wiring inside enclosures, 2-15, 3-1
trunkcable section, 1-1, 1-3, 2-4, 3-18
U
universal mounting bracket
W
wiring
external to enclosures, 2-15, 3-1
inside enclosures, 2-15, 3-1 wiring guidelines, 2-15
3
Publication 1786-6.2.1 - April 1998
Allen-Bradley
Publication Problem Report
If you find a problem with our documentation, please complete and return this form.
Pub. Name
Cat. No.
1786
ControlNet Coax Media Planning and Installation Manual
Pub. No.
1786-6.2.1
Pub. Date
April 1998
Part No.
955128-48
Check Problem(s) Type:
Technical Accuracy
Describe Problem(s): text illustration
Internal Use Only
Completeness
What information is missing?
procedure/step example explanation illustration guideline other definition feature info in manual
(accessibility) info not in manual
Clarity
What is unclear?
Sequence
What is not in the right order?
Other Comments
Use back for more comments.
Your Name Location/Phone
Return to: Marketing Communications, Allen-Bradley Co., 1 Allen-Bradley Drive, Mayfield Hts., OH 44124-6118Phone: (440)646-3176
FAX: (440)646-4320
Publication ICCG-5.21-August1995 PN955107-82
Other Comments
PLEASE FASTEN HERE (DO NOT STAPLE)
PLEASE FOLD HERE
BUSINESS REPLY MAIL
FIRST-CLASS MAIL PERMIT NO. 18235 CLEVELAND OH
POSTAGE WILL BE PAID BY THE ADDRESSEE
1 ALLEN BRADLEY DR
MAYFIELD HEIGHTS OH 44124-9705
NO POSTAGE
NECESSARY
IF MAILED
IN THE
UNITED STATES
9(
(0
5
6(
($
3/
Allen-Bradley, a Rockwell Automation Business, has been helping its customers improve productivity and quality for more than 90 years. We design, manufacture and support a broad range of automation products worldwide. They include logic processors, power and motion control devices, operator interfaces, sensors and a variety of software. Rockwell is one of the world’s leading technology companies.
Worldwide representation.
Argentina
•
Australia
•
Austria
•
Bahrain
•
Belgium
•
Brazil
•
Bulgaria
•
Canada
•
Chile
•
China, PRC
•
Colombia
•
Costa Rica
•
Croatia
•
Cyprus
•
Czech Republic
•
Denmark
•
Ecuador
•
Egypt
•
El Salvador
•
Finland
•
France
•
Germany
•
Greece
•
Guatemala
•
Honduras
•
Hong Kong
•
Hungary
•
Iceland
•
India
•
Indonesia
•
Ireland
•
Israel
•
Italy
•
Jamaica
•
Japan
•
Jordan
•
Korea
•
Kuwait
•
Lebanon
•
Malaysia
•
Mexico
•
Netherlands
•
New Zealand
•
Norway
•
Pakistan
•
Peru
•
Philippines
•
Poland
•
Portugal
•
Puerto Rico
•
Qatar
•
Romania
•
Russia-CIS
•
Saudi Arabia
•
Singapore
•
Slovakia
•
Slovenia
•
South Africa, Republic
•
Spain
•
Sweden
•
Switzerland
•
Taiwan
•
Thailand
•
Turkey
•
United Arab Emirates
•
United Kingdom
•
United States
•
Uruguay
•
Venezuela
•
Yugoslavia
Allen-Bradley Headquarters, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 382-2000 Fax: (1) 414 382-4444
Publication 1786-6.2.1 – April 1998
Supersedes publication 1786-6.2.1 -September 1996
PN 955128-48
Copyright 1998 Allen-Bradley Company, Inc.
Printed in USA

Public link updated
The public link to your chat has been updated.
Advertisement