Allen-Bradley ControlNet 1786-6.2.1 Planning And Installation Manual Download Page 27

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Planning A ControlNet Cable System

Publication 1786-6.2.1 - April 1988

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trunk cable A =

trunk cable B =

20135-m

node

Node supporting redundant media

trunk cable A =

node

terminator

SEGMENT 1

SEGMENT 2

repeater

trunk cable B =

Summary of Contents for ControlNet 1786-6.2.1

Page 1: ...Planning and Installation Manual ControlNet Coax Cable System Cat No 1786 6 2 1 Allen Bradley...

Page 2: ...nes 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 electr...

Page 3: ...ing of electronics and electrical codes Abbreviations To Read chapter Understand the ControlNet Coax cable system 1 Plan a ControlNet Coax cable system 2 Install a ControlNet Coax cable system 3 For r...

Page 4: ...85 7 1 ControlNet PLC 5 Programmable Controllers Quick Start 1785 7 4 ControlNet PLC 5 Quick Start 1785 10 6 ControlNet Coax Tap Installation Instructions 1786 2 3 ControlNet Network Access Cable Inst...

Page 5: ...e 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 Install...

Page 6: ...stalling 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...

Page 7: ...1786 6 2 1 April 1998 Appendix A Mounting Dimensions Contents A 1 Taps A 1 Universal Mounting Bracket A 2 Repeater A 2 Appendix B Adjusting The Cable Strip Tool Contents B 1 Calibrating The Cutting Bl...

Page 8: ...yer component that reconstructs and retransmits all traffic it hears on one segment side to another segment side link a collection of nodes with unique addresses in the range of 1 99 tapr the connecti...

Page 9: ...WUXQN FDEOH FDEOH FRQQHFWRUV WHUPLQDWRUV VHJPHQWV UHSHDWHUV OLQNV EULGJHV QHWZRUN Nodes 1RGHV DUH GHILQHG DV SK VLFDO GHYLFHV FRQQHFWLQJ WR WKH RQWURO1HW FDEOH V VWHP WKDW UHTXLUH D QHWZRUN DGGUHVV L...

Page 10: ...PDWLRQ RQ WDSV Trunk Cable 7KH WUXQN FDEOH LV WKH EXV RU FHQWUDO SDUW RI WKH RQWURO1HW FRD FDEOH V VWHP 7KH WUXQN FDEOH LV FRPSRVHG RI PXOWLSOH VHFWLRQV RI FDEOH 7KH VWDQGDUG FDEOH WKDW FDQ EH XVHG WR...

Page 11: ...FRQILJXUDWLRQ 6HH SDJH IRU DYDLODEOH FRQQHFWRUV Terminators WHUPLQDWRU FDW QR 7 PXVW EH LQVWDOOHG RQ WKH WDS DW HDFK HQG RI D VHJPHQW Segments VHJPHQW LV D FROOHFWLRQ RI FRD WUXQN FDEOH VHFWLRQV WDSV...

Page 12: ...LV OLPLWHG GHSHQGLQJ RQ RXU QHWZRUN WRSRORJ KHQ RX LQVHUW D UHSHDWHU LQWR RXU FDEOH V VWHP RX FUHDWH D QHZ VHJPHQW 7KH VDPH UHVWULFWLRQV RQ WKH QXPEHU RI WDSV DQG FDEOH OHQJWK DSSO WR WKLV QHZ VHJPHQW...

Page 13: ...HUV DQG EULGJHV Next 1RZ WKDW RX KDYH D JHQHUDO XQGHUVWDQGLQJ RI WKH RQWURO1HW FDEOH V VWHP RX DUH UHDG WR GHVLJQ D RQWURO1HW FDEOH V VWHP IRU RXU VSHFLILF UHTXLUHPHQWV R WR FKDSWHU N N N N N N N T T...

Page 14: ...IRU WKHVH DGGLWLRQDO QRGHV ZKHQ RX LQVWDOO WKH LQLWLDO QHWZRUN 7KLV ZLOO PLQLPL H GLVUXSWLRQ WR WKH QHWZRUN GXULQJ RSHUDWLRQ Important GLVFRQQHFWHG GURS FDEOH FDQ FDXVH QRLVH RQ WKH QHWZRUN HFDXVH RI...

Page 15: ...HVVRUV FRPPXQLFDWLRQ LQWHUIDFHV DQG DGDSWHUV WKURXJK QHWZRUN DFFHVV SRUWV 1 3V DQG DOORZV RX WR JDLQ IXOO DFFHVV WR WKH QHWZRUN dust cap screws tap 1786 TPS TPR TPYS TPYR For noise suppression ferrite...

Page 16: ...DWHG ZLWK RXU DSSOLFDWLRQ DQG LQVWDOODWLRQ VLWH Using a 1784 KTCX15 communication card on coax media Using a 1784 KTCX15 communication card and NAP Using a 1770 KFD15 communicaton intrafce on coax med...

Page 17: ...GLPHQVLRQV RX VKRXOG DOZD V FDOFXODWH WKH WKUHH GLPHQVLRQDO URXWLQJ SDWK GLVWDQFH ZKHQ GHWHUPLQLQJ FDEOH OHQJWKV 6HOHFW WKH VKRUWHVW SDWK IRU URXWLQJ WKH FDEOH WR PLQLPL H WKH DPRXQW RI FDEOH RX QHHG...

Page 18: ...OHQJWK RI P IW 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 7KH DPRXQW RI KLJK IOH 5 FDEOH 5 RX F...

Page 19: ...2 ft 7KH WRWDO WUXQN FDEOH OHQJWK RU QXPEHU RI WDSV FDQ EH LQFUHDVHG E LQVWDOOLQJ UHSHDWHUV RQ WKH VHJPHQW 7KLV FUHDWHV DQRWKHU VHJPHQW Determining How Many Terminators You Need RX PXVW XVH WHUPLQDWRU...

Page 20: ...URXEOHVKRRWLQJ D IDXOW UHO FRQWDFW IRU VWDWXV LQGLFDWLRQ RU VZLWFKLQJ WR D EDFNXS UHSHDWHU KHQ ZLUHG WR H WHUQDO FLUFXLWU WKLV FRQWDFW FRXOG EH XVHG WR WXUQ RII D OLJKW RU DFWLYDWH D EDFNXS UHSHDWHU 1...

Page 21: ...WLPH GLVUXSWV FRPPXQLFDWLRQ RQ WKH QHWZRUN 8VH WKH IDXOW UHOD FRQWDFW RI WKH SULPDU UHSHDWHU WR FRQWURO SRZHU WR WKH EDFNXS UHSHDWHU This diagram shows a possible configuration for powering a backup...

Page 22: ...OH FRQILJXUDWLRQ 7KH V VWHP VL H LV EDVHG RQ WKH PD LPXP QXPEHU RI UHSHDWHUV LQ D VHULHV DQG OHQJWK RI WKH PHGLD XVHG EHWZHHQ DQ WZR QRGHV Example segments 1 and 4 each have 2 taps and each 1000 m 328...

Page 23: ...WDS IRU WKH SDUDOOHO VHJPHQW WKDW WKH UHSHDWHU LV FRQQHFWLQJ WR WKH EDFNERQH QHWZRUN Q WKH H DPSOH EHORZ 6HJPHQW FRXQWV RQO RQH UHSHDWHU WDS DV ZHOO DV WKH WDSV IRU WKH QRGHV 7KH RWKHU UHSHDWHU WDS L...

Page 24: ...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 m...

Page 25: ...s that have yet to be connected to a node 1786 TCAP right angle jack to plug provide a 90 bend in your cable prevent bending your cable excessively See Chapter 3 for the bend radius specification See...

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Page 29: ...WHQWLDO QRLVH FRQGXFWRUV RX VKRXOG URXWH RXU FDEOH IROORZLQJ WKHVH JXLGHOLQHV LULQJ QVLGH QFORVXUHV DEOH VHFWLRQV WKDW UXQ LQVLGH SURWHFWLYH HTXLSPHQW HQFORVXUHV DUH UHODWLYHO VKRUW V ZLWK ZLULQJ H WH...

Page 30: ...UHTXLUH VXUJH VXSSUHVVLRQ RZHYHU LQGXFWLYH ORDGV RI DF RXWSXW PRGXOHV WKDW DUH LQ VHULHV RU SDUDOOHO ZLWK KDUG FRQWDFWV UHTXLUH VXUJH VXSSUHVVLRQ WR SURWHFW WKH PRGXOH RXWSXW FLUFXLWV DV ZHOO DV WR V...

Page 31: ...EOH P IW ZLWK WDSV PD LPXP WUXQN FDEOH OHQJWK RI KLJK IOH 5 WUXQN FDEOH P IW ZLWK WDSV WHUPLQDWRUV DUH UHTXLUHG RQ ERWK HQGV RQH WDS ZLWK DQ XQFRQQHFWHG GURS FDEOH PD EH LQVWDOOHG IRU PDLQWHQDQFH SXUS...

Page 32: ...50 Two cable connectors areshipped witheach tap you need to order additional cable connectors for each bullet and isolated bulkhead connector you will be using number of bullet connectors x 2 number...

Page 33: ...coax cable is being pulled through multiple conduit bends follow these specifications Wiring Inside Enclosures When the RG 6 type coax cable is not being pulled through conduit follow these specifica...

Page 34: ...le 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 Mounting The Taps You can mount your C...

Page 35: ...ly the screws that are packaged with the tap They are the proper length and head style 20084 m Y Tap T Tap dust cap dust cap Mount the universal mounting bracket on specified Allen Bradley mountingrai...

Page 36: ...ety of screw types 20083 m body holes body holes tie wrap screws and flat washers ATTENTION Do not over tighten the screws Over tightening the screws can damage the tap The applied torque should be 0...

Page 37: ...uct 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 informa...

Page 38: ...lly or vertically in the area you selected Grounding The Repeater Use a 14 AWG wire to connect the repeater to the ground bus 20753 m 38 1mm 1 50 9 1mm 0 36 215 9mm 8 5 197 6 mm 7 78 12 77 mm 0 50 50...

Page 39: ...ting Power And Relay Circuitry 1 Remove the terminal strip cover 2 Connect power to the repeater If you are using high voltage DC to power the 1786 RPT L1 is positive and L2 N is negative 20743a m L1...

Page 40: ...ControlNet Cable System Publication 1786 6 2 1 April 1998 3 Connect your relay circuitry to the fault relay terminals 4 Replace the terminal strip cover L1 L2 N 20145 m contact held closed in normal o...

Page 41: ...14 attach the cable connectors 3 15 test for electrical shorts and continuity 3 17 wire cutters crimp tool knife calibration tool ControlNetNetwork Component List AG 2 2 ControlNet Network Coax Cable...

Page 42: ...type of cable you are using PVC CL2 or FEP CL2P If you need to change the memory blade holder see appendix B 2 Insert the cable into the cable strip tool s cutting chamber so that extra cable approxim...

Page 43: ...tool glides easily around the cable Important On your last repetition of steps 3 and 4 apply sufficientpressureonthechambergaugeringtomake sure the ring has reached the last stage This guage moves tw...

Page 44: ...trip the cable exposing these layers of the cable 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 pr...

Page 45: ...7mm 4 0 mm 20076a 1786RG6calibrationtool PVC CL2 FEP CL2P center conductor The center conductor should be 4 0 mm exactly If the center conductor is too long cut off the excess with the wire cutter fro...

Page 46: ...e an ohmmeter or continuity tester to test for electrical continuity Important Replace the trunk cable section if problems persist with the cable after completing these tests If resistance reading ind...

Page 47: ...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...

Page 48: ...oulder on the connector 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 aroun...

Page 49: ...ontinuity Important Replace the trunk cable section if problems persist with the cable after completing these tests 20166 ohmmeter connector body pin 20166 connector body pin If resistance reading ind...

Page 50: ...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 terminator to the first and...

Page 51: ...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 To connect a See programming terminal through the NAP pa...

Page 52: ...ming 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...

Page 53: ...tor on the repeater 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 plac...

Page 54: ...ove and save thedustcap locatedon thestraightorright angle connector of the designated tap on the second segment segment 2 5 Connect this tap s straight or right angle connector to the BNC connector o...

Page 55: ...dimensionstomountyourtaps universalmounting brackets and repeaters Taps Make copies of these templates as necessary to help you mark placement for your taps T tap Y tap 35 66 mm 1 40 15 24 mm 0 60 33...

Page 56: ...ersal Mounting Bracket Repeater 58 42 mm 2 30 49 53 mm 1 95 15 47 mm 0 609 9 53 mm 0 375 30 94 mm 1 128 19 05 mm 0 75 20170 m 50 8 mm 2 0 12 7 mm 0 5 197 6 mm 7 78 215 9 mm 8 5 9 1 mm 0 36 38 1 mm 1 5...

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Page 58: ...RO 7KH EODGHV VKRXOG QRW EHQG VKLIW RU SHQHWUDWH WKH FDOLEUDWLRQ WRRO all 4 shield layers braid tape braid tape whiteinsulation or 1st tape center conductor 1 2 3 2 3 The first cut should cut the oute...

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Page 62: ...tors 1 4 2 11 2 18 optional 1 4 Coax Toolkit 3 9 component definitions 1 1 connecting cable sections 3 18 connecting devices 3 19 connecting programming termi nals through NAP 3 19 determine cable nee...

Page 63: ...ition 1 1 planning 2 17 M media redundant 2 12 guidelines 2 13 memoryblade holder 3 10 mounting dimensions repeater 3 6 tap A 1 universal mounting bracket A 2 N NAP 2 2 2 18 3 19 network access cable...

Page 64: ...g the memory blade hold er B 5 reversing replacing cutting blades B 3 surge suppression 2 16 T tap 1 1 1 3 2 18 determine number needed 2 1 mounting 3 2 to a universal mounting brack et 3 3 using the...

Page 65: ...l accessibility info not in manual text illustration Technical Accuracy Completeness What information is missing Clarity Sequence What is not in the right order What is unclear Other Comments Use back...

Page 66: ...E NECESSARY IF MAILED IN THE UNITED STATES 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 3 6...

Page 67: ...entation 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 G...

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