Series 90-70 Genius Bus Controller Manual, GFK-2017

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1Bus Controller DescriptionThe Genius Bus Controller is a standard, rack-mounted Series 90-70 PLC module.LEDsHHMConnectorRemovablebus wiringterminalassemblyStatus LEDsThe LEDs on the front of the Bus Controller indicate its operating status. The top twoLEDs should be on during normal operation. The bottom LED is not used.ModuleOKChannelOKShows the status of the Bus Controller. This LED blinks duringpowerup diagnostics.Shows the status of the bus. This LED is on steadily when the bus isoperating properly. It blinks for intermittent bus errors and is off for afailed bus. It is also off when no configuration has been received fromthe PLC CPU.Hand-held Monitor ConnectorThe Hand-held Monitor connector on the Bus Controller faceplate provides attachmentfor a Hand-held Monitor. All Hand-held Monitor functions except I/O block DeviceNumber assignment can be performed with the HHM connected to the Bus Controller.Bus and block operation can be monitored, circuits forced or unforced, outputs PulseTested, diagnostic messages displayed, and faults cleared, from this convenientcentral location. Hand-held Monitor version IC660HHM501C (or later), permittingselection of a “host CPU” is recommended.Terminal AssemblySerial bus and shield wiring connections are made to the removable terminal strip onthe front of the Bus Controller. Only the upper three terminals are used. To removethe Terminal Assembly without disturbing the continuity of the bus, jumpers are used.See chapter 2.1-4 Series 90-70 Genius® Bus Controller – July 2003 GFK-2017
1The Genius BusThe Genius bus is a shielded twisted-pair wire, daisy-chained between devices, andterminated at both ends. Proper cable selection is critical to successful operation ofthe system. Suitable cable types are listed in the Genius I/O System User’s Manual.Conservative wiring practices, as well as national and local codes, require physicalseparation between control circuits and power distribution or motor power. Refer tosections 430 and 725 of the National Electric Code.Bus TypeBusTerminationDaisy-chained bus cable; single twisted pair plus shield or Twinax.Fiber optics cable and modems can also be used.75, 100, 120, or 150 ohm resistor at both ends of electrical buscable.Baud Rate Configurable. 153.6 Kbaud standard, 153.6 Kbaud extended, 76.8Kbaud, or 38.4 Kbaud.Maximum BusLength7500 feet at 38.4 Kbaud, 4500 feet at 76.8 Kbaud, 3500 feet at153.6 Kbaud extended, 2000 feet at 153.6 Kbaud, standard.Maximum length at each baud rate also depends on cable type.Chapter 2 provides a complete list of cable types, showingcorresponding bus lengths and baud rates.Greater bus lengths are possible using sections of fiber optics cablewith modems.MaximumNumber ofDevicesData EncodingModulationTechniqueIsolationSignal/noiseRatio32 devices at 153.6 Kbaud standard, 153.6 Kbaud extended, or 76.8Kbaud. 16 devices at 38.4 Kbaud. Includes bus controller andtypically a Hand-held Monitor.Each bit is encoded into three dipulses, majority voted at thereceiver to correct any single dipulse errors. A dipulse is an ACcode consisting of a positive then negative excursion of voltage.Dipulses are individually sampled to reject low and high frequencyinterference.Frequency Shift Keying (FSK) 0 to 460.8 KHz max. (153.6 Kilobaud)2000 volts Hi-Pot, 1500 volts transient common mode rejection.60 dbGFK-2017 Chapter 1 Introduction 1-5
Page 1 and 2: GE Fanuc AutomationProgrammable Con
Page 3 and 4: ContentsChapter 1Introduction......
Page 5 and 6: ContentsFault Table Definitions Ass
Page 7: ContentsMonitoring Inputs..........
Page 10 and 11: 1Related PublicationsFor more infor
Page 14 and 15: 1Bus Controller OperationThe Bus Co
Page 16 and 17: 1Amount of I/O Data on the BusThe a
Page 18 and 19: 1DatagramsThe Bus Controller suppor
Page 20 and 21: 1Receiving Global DataThe Bus Contr
Page 22 and 23: 2Installing the Bus Controller1. Be
Page 24 and 25: 2Terminating the BusEach Genius com
Page 26 and 27: 3Adding a Bus Controller to the Con
Page 28 and 29: 3Error RateThis entry determines ho
Page 30 and 31: 3Configuring Genius Redundancy on t
Page 32 and 33: 3Dual Bus and Redundant Controller:
Page 34 and 35: 3Using the Redundancy WizardsThe Re
Page 36 and 37: 3Redundancy Wizard: Set up a Primar
Page 38 and 39: 3Redundancy Wizard: Add GBCs for Ge
Page 40 and 41: 34. Click Next.5. Review the settin
Page 44 and 45: 34. Click Next. Select the rack and
Page 48 and 49: 3Adding Devices to the Bus Configur
Page 50 and 51: 3Reference Address Configuration Ex
Page 52 and 53: 3Reference Address Example Configur
Page 54 and 55: 3ExampleDisabling Outputs for an As
Page 56 and 57: 3Changing a Device's Serial Bus Add
Page 58 and 59: 3Configuring a Remote Bus Controlle
Page 60 and 61: 3Configuring a PowerTRAC Block or H
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3Configuring a Generic Device on th
Page 64 and 65:
3Setting All Bus Devices to Redunda
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3Viewing the Bus Controller Power C
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4System Status ReferencesSystem sta
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4High Alarm and Low Alarm ContactsT
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4Fault Table Definitions Associated
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4Fault Table Definitions Associated
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5Programming for a Communication Re
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5The high byte of address + 2 of th
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5The COMMREQ InstructionAfter suppl
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5COMMREQ Status BlockWhen the Bus C
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5Programming ExamplesThe following
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5COMMREQs and DatagramsThe table be
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5COMMREQ #2: Read Configuration Com
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5COMMREQ #4: Read Diagnostics Comma
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5COMMREQ #7: Assign Monitor Command
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5COMMREQ #8: Enable/Disable Outputs
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5COMMREQ #10: Switch BSM CommandIn
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5Memory Specification for Read Devi
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5Memory Specification: Series Six P
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5COMMREQ #12: Write Device CommandT
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5Number of Dequeue Datagram Command
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5COMMREQ #14: Send Datagram Command
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5Datagram PriorityA Bus Controller
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5COMMREQ #15: Request Datagram Repl
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5COMMREQ #17: Do Output CommandTo i
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5ExampleIn this example, there are
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5COMMREQ #18: Read Serial Bus Addre
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6Reading the Serial Bus Addresses o
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6Series 90-70 CPU: Reading Serial B
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6Series 90-70 CPU: Reading Datagram
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7Data MonitoringIn addition to the
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7RedundancyRedundancy provides extr
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7If, after switching due to loss of
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7Number of Bus Devices on a Dual Bu
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7Redundant ControllersRedundant con
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7Duplex Redundancy ModeIf a bus dev
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7Bus and Controller Redundancy for
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7Operation Remains with Primary PLC
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77-18 Series 90-70 Genius® Bus Con
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A-2 Series 90-70 Genius® Bus Contr
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IndexNumber per CPU Sweep, 5-34Prio
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IndexIndex-4 Series 90-70 Genius®
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Series 90-70 Genius Bus Controller Manual, GFK-2017

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