《自动化生产线的安装与调试》课程拓展资料（PLC）FX2N-485-BD用户手册.pdf

"MITSUBISHIELECTRICMITSUBISHIPROGRAMMABLE CONTROLLERSMELSEC-FFX2N-485-BDCOMMUNICATIONBOARDFXHARDWAREMANUAL2NJY992D73401AThismanualcontainstext,diagramsandexplanationswhichwillguidethereaderinthecorrect installationandoperationoftheFX2N-485-BDCOMMUNICATIONBOARD.Itshouldbereadandunderstoodbeforeattempting to install or use the unit.Further information can be found in theFX PROGRAMMING MAN-UAL,FX2NserieshardwaremanualsandmanualofFXCOMMUNICATIONUSER'SMANUALIf in doubt at any stage during the installation of the FX2N-485-BD COMMUNICATION BOARD always consult a profes-sional electrical engineer who is qualified and trained to the local and national standards.1.INTRODUCTIONThe communication board FX2N-485-BDfor RS485 (hereinafter referredto as"485BD)can be connectedto the baseunit of theFX2n Series programmable controllertobeusedfor the followingapplications.1)DatatransferusingnoprotocolDatacommunication withdiversifiedRS232C units includingpersonal computers,barcode readersandprinterscanbeperformedviatheRS485(422)converterusingthenoprotocol.Inthisapplica-tion, data is sent or received using the data registers specified by the RS instruction.For the settingand programexamples,refer to theFXProgramming Manual andFXCommunication User's Manual.2)DatatransferusingthededicatedprotocolData transfer with RS485 (422) units can beperformed on the 1:Nbasis using thededicated protocolFor the contents ofthe dedicated protocol used in this application,referto the Fx CommunicationUser's Manual3)Datatransferusingtheparallel linkDatatransferwithanFX2nprogrammablecontrollercanbeperformedonthe1:1basisfor100auxil-iary relays and 10 data registers.For the setting and program examples, refer to the Fx Communica-tion User's Manual.4)DatatransferusingtheN:N networkDatatransferwithFX2NprogrammablecontrollerscanbeperformedontheN:Nbasis.Forthesetting,thenumberoftransferreddataandprogramexamples,refertotheFCommunicationUser'sManual.1.1ExternalDimensionsDimensions:mm(inches)1234Accessory: M3 self-tapping screwx2,Terminal resistor3302x2,1102x15① Mounting holes (20-4.0(0.16")RDAICAORDB(.ts168@ConnectorforprogrammablecontrollermFooOD三 SD LED:Flashes at high speed during sendingSDB RD LED:Flashes at high speed during receivingEbSG?TerminalstoconnectRS485unitThetopfaceofthister-minalblock is higher thanthetopfaceofthepanel coveroftheprogrammablecontrollerbyapproximately7mm.35(1.38")1.2SystemConfiguration1.2.1NoProtocolorDedicated ProtocolRS422/485UnitACPFX/FX2C/FX2NAseriesFXONC485BDFX(ON)-485ADPAseriesPorgrammable controllerscomputer link unitWhenusing485BDinthesystem,totalextensiondistanceis50m.(Nouse:max.500m)When using dedicated protocol,max.16 stations including A series programmable controller

FX2N-485-BD COMMUNICATION BOARD HARDWARE MANUAL JY992D73401A This manual contains text, diagrams and explanations which will guide the reader in the correct installation and operation of the FX2N-485-BD COMMUNICATION BOARD. It should be read and understood before attempting to install or use the unit. Further information can be found in the FX PROGRAMMING MANUAL, FX2N series hardware manuals and manual of FX COMMUNICATION USER’S MANUAL. If in doubt at any stage during the installation of the FX2N-485-BD COMMUNICATION BOARD always consult a professional electrical engineer who is qualified and trained to the local and national standards. 1. INTRODUCTION The communication board FX2N-485-BD for RS485 (hereinafter referred to as “485BD”) can be connected to the base unit of the FX2N Series programmable controller to be used for the following applications. 1) Data transfer using no protocol Data communication with diversified RS232C units including personal computers, bar code readers and printers can be performed via the RS485 (422) converter using the no protocol. In this application, data is sent or received using the data registers specified by the RS instruction. For the setting and program examples, refer to the FX Programming Manual and FX Communication User’s Manual. 2) Data transfer using the dedicated protocol Data transfer with RS485 (422) units can be performed on the 1:N basis using the dedicated protocol. For the contents of the dedicated protocol used in this application, refer to the FX Communication User’s Manual. 3) Data transfer using the parallel link Data transfer with an FX2N programmable controller can be performed on the 1:1 basis for 100 auxiliary relays and 10 data registers. For the setting and program examples, refer to the FX Communication User’s Manual. 4) Data transfer using the N:N network Data transfer with FX2N programmable controllers can be performed on the N:N basis. For the setting, the number of transferred data and program examples, refer to the FX Communication User’s Manual. 1.1 External Dimensions Dimensions : mm(inches) Accessory : M3 self-tapping screw×2, Terminal resistor 330Ω×2, 110Ω×1 Å Mounting holes (2∅- 4.0(0.16")) Ç Connector for programmable controller É SD LED: Flashes at high speed during sending. Ñ RD LED: Flashes at high speed during receiving. Ö Terminals to connect RS485 unit The top face of this terminal block is higher than the top face of the panel cover of the programmable controller by approximately 7mm. 1.2 System Configuration 1.2.1 No Protocol or Dedicated Protocol FX2N FX/FX2C/ FX0N A series 485BD FX(0N)-485ADP A series Porgrammable controller's computer link unit When using 485BD in the system, total extension distance is 50m. (No use : max. 500m) When using dedicated protocol, max.16 stations including A series programmable controller. RS422/485 Unit A C P U 1.2.2 Parallel Link ➀ FX2N+485BD 485BD FX2N ➁ FX2N+FX2N-CNV-BD +FX0N-485ADP ➂ FX(2C)+FX2-40AW When using 485BD in system, this distance is 50m. (No use : max. 500m) But, when using FX2-40AW in system, this distance is 10m. 1.2.3 N:N Network When using 485BD in the system, total extension distance is 50m (No use : max. 500m), max.8 stations. Master FX2N Slave Slave Slave FX2N 485BD 485BD FX2N 485BD FX2N+FX2NCNV-BD/ FX0N FX0N-485ADP 2. MUNTING AND WIRING 2.1 Mounting Procedure Turn off the power of the programmable controller, and mount the 485BD using the following procedure. Å Remove the panel cover from the top face of the base unit. Ç Connect the connector for programmable controller provided on the 485BD to the board mounting connector provided on the base unit. É Fix the 485BD to the base unit using the M3 self-tapping screws supplied. Tightening torque: 0.3 to 0.6 N•m (3 to 6 kgf•cm) Ñ Remove the cut out on the left of the panel cover using a tool such as nippers or cutters so that the terminal block is accessible. The top face of this terminal block is higher than the top face of the panel cover of the programmable controller by approximately 7 mm. 2.2 Cable and Terminal Resistor 2.2.1 Cable To connect the RS485 (422) unit, use a shielded twisted-pair cable. The cable specification must be AWG 26 to 16, and the maximum tightening torque must be 0.6 N•m (6 kgf•cm). If a cable other than the AWG 26 to 16 is used, normal communication cannot be assured because the terminal may be imperfectly contacted. It is recommended to insert a cable integrated by the crimping tool into the terminal. 2.2.2 Terminal Resistor Provide the terminal resistor at both ends of the line as described in section 2.3.2 and 2.3.3. 1) In the case of two-pair wiring, connect the terminal resistor (330Ω, 1/4W) between terminals SDA and SDB as well as between terminals RDA and RDB. Use the resistors offered as accessories of the 485BD. 2) In the case of one-pair wiring, connect the terminal resistor (110Ω, 1/2W) between terminals RDA and RDB. Use the resistors offered as accessories of the 485BD. 6mm Orange Orange Brown Brown Brown Brown 2.3 Wiring 2.3.1 Selection of Wiring Wiring of RS485 is one-pair wiring or two-pair wiring. The wiring method is decided according to the usage. Please select the wiring method from the table below. Usage One-pair wiring (Refer to section2.3.3) Two-pair wiring (Refer to section2.3.2) No protocol (Use RS instruction) *1 Half-duplex communication §*2 ° Full-duplex communication *3 × ° Dedicated protocol (Use computer link) *1 If is necessary to set the message wait to 70ms or less × ° If is not necessary to set the message wait to 70ms or less §*2 ° Use on-demand function × ° Parallel link (Refer to section 2.3.4) *4 § ° N:N network ° × § . . . . Recommendation, ° . . . . .OK, × . . . . . Can not use *1 When this product is added to the system, please match the wiring to the wiring method of the system. *2 When using 485BD with, this wiring method remember to take account of/or ignore the “echo” of the commands sent from the FX2N programmable controller. *3 Use FX2N programmable controller and 485BD together. *4 For excluding the combination of 485BD, please see below. **1 Connect the SG terminal to SG terminal of FX or FX2C main unit. **2 Connect the shield of shielded twisted pair cable to ground (100Ω or less).please adjust the grounding only to one side. SB SA SG **1 SDA SDB RDA RDB SG 485BD Grounding of resistance 100Ω or less **2 Terminating resistance 110Ω FX2 -40AW 2.3.2 Two-pair Wiring Grounding of resistance 100 or less R*1 R*1 SDA SDB RDA RDB SDA SDB RDA RDB S G SDA SDB RDA RDB LINK S G *3 FG SDA SDB RDA RDB S G *3 FG R*1 R*1 RS485/422 unit 485BD FX(ON)-485ADP A series program m able controller's com puter link unit S G *2 *1 R is the terminating resistance. Connect the terminating resistance (330Ω) between terminals SDA and SDB, and terminals RDA and RDB. *2 The shield of the shielded twisted-pair cable must be connected to ground (100Ω or less). When using parallel link, ground both side. When using no protocol or dedicated protocol, ground one side. *3 Connect terminal FG to each terminal of the programmable controller main body grounded with resistance of 100 or less. However, for the computer link unit of the A series programmable controller, see the manual of the computer link unit. *4 When using RS232/485 or RS232/422 interface, please the use FX-485PC-IF

2.3 Wiring2.3.1 Selection of WiringWiring of RS485 is one-pair wiring or two-pair wiring. The wiring method is decided according to theusage. Please select the wiring method from the table below.One-pair wiringTwo-pair wiringUsage(Referto section2.3.3)(Refer to section2.3.2)00*2Half-duplexcommunicationNoprotocol(Use RS instruction)*10Full-duplex communication *3xIfisnecessarytoset themes-0xsage wait to 70ms or lessDedicated protocolIfis not necessary to set the00*2(Use computerlink)*1messagewait to70msor less0Use on-demand functionx。0Parallel link (Refer to section 2.3.4)*40xN:N network...Recommendation,o.....Ok,x....Can notuse+1When this product is added to the system,please match the wiring to the wiring method of the sys-tem.*2 When using 485BD with, this wiring method remember to take account of/or ignore the "echo"of thecommands sent from theFX2N programmablecontroller.*3Use FX2N programmable controller and 485BD together.*4Forexcludingthecombinationof485BD,pleaseseebelow.FX2-4DAW*1 Connect the SG terminal to SG terminal of FX orSA804FX2cmainunit.0**2 Connect the shield of shielded twisted pair cable toSG "ground (100 or less).please adjust the grounding2inating resistanceonly to one side.1109Grounding of resistance 1002 or less2.3.2 Two-pair WiringA series programmableRS485/422 unit485BDFX(ON)-485ADPomputer link unitcontroller's cR'1EMSDASDASDASDALWJVSDBSDBSDBSDBEMR'1RDARDARDAHRDALRDBRDBRDERDBSG+LSG*2Grounding of resistance 100 orless*1Ris theterminating resistance.Connectthe terminating resistance (3302)between terminals SDAand SDB,and terminalsRDAand RDB.*2The shield of the shielded twisted-pair cable must be connected to ground (1002 or less). When usingparallel link,groundboth side.When using no protocol or dedicated protocol,ground one side.*3Connect terminal FG to each terminal of the programmable controller main body grounded with resis-tance of 100 or less. However,for the computer link unit of the A series programmable controller, seethe manual of the computer link unit.*4WhenusingRS232/485orRS232/422 interface,please the useFX-485PC-IF

FX2N-485-BD COMMUNICATION BOARD HARDWARE MANUAL JY992D73401A This manual contains text, diagrams and explanations which will guide the reader in the correct installation and operation of the FX2N-485-BD COMMUNICATION BOARD. It should be read and understood before attempting to install or use the unit. Further information can be found in the FX PROGRAMMING MANUAL, FX2N series hardware manuals and manual of FX COMMUNICATION USER’S MANUAL. If in doubt at any stage during the installation of the FX2N-485-BD COMMUNICATION BOARD always consult a professional electrical engineer who is qualified and trained to the local and national standards. 1. INTRODUCTION The communication board FX2N-485-BD for RS485 (hereinafter referred to as “485BD”) can be connected to the base unit of the FX2N Series programmable controller to be used for the following applications. 1) Data transfer using no protocol Data communication with diversified RS232C units including personal computers, bar code readers and printers can be performed via the RS485 (422) converter using the no protocol. In this application, data is sent or received using the data registers specified by the RS instruction. For the setting and program examples, refer to the FX Programming Manual and FX Communication User’s Manual. 2) Data transfer using the dedicated protocol Data transfer with RS485 (422) units can be performed on the 1:N basis using the dedicated protocol. For the contents of the dedicated protocol used in this application, refer to the FX Communication User’s Manual. 3) Data transfer using the parallel link Data transfer with an FX2N programmable controller can be performed on the 1:1 basis for 100 auxiliary relays and 10 data registers. For the setting and program examples, refer to the FX Communication User’s Manual. 4) Data transfer using the N:N network Data transfer with FX2N programmable controllers can be performed on the N:N basis. For the setting, the number of transferred data and program examples, refer to the FX Communication User’s Manual. 1.1 External Dimensions Dimensions : mm(inches) Accessory : M3 self-tapping screw×2, Terminal resistor 330Ω×2, 110Ω×1 Å Mounting holes (2∅- 4.0(0.16")) Ç Connector for programmable controller É SD LED: Flashes at high speed during sending. Ñ RD LED: Flashes at high speed during receiving. Ö Terminals to connect RS485 unit The top face of this terminal block is higher than the top face of the panel cover of the programmable controller by approximately 7mm. 1.2 System Configuration 1.2.1 No Protocol or Dedicated Protocol FX2N FX/FX2C/ FX0N A series 485BD FX(0N)-485ADP A series Porgrammable controller's computer link unit When using 485BD in the system, total extension distance is 50m. (No use : max. 500m) When using dedicated protocol, max.16 stations including A series programmable controller. RS422/485 Unit A C P U 1.2.2 Parallel Link ➀ FX2N+485BD 485BD FX2N ➁ FX2N+FX2N-CNV-BD +FX0N-485ADP ➂ FX(2C)+FX2-40AW When using 485BD in system, this distance is 50m. (No use : max. 500m) But, when using FX2-40AW in system, this distance is 10m. 1.2.3 N:N Network When using 485BD in the system, total extension distance is 50m (No use : max. 500m), max.8 stations. Master FX2N Slave Slave Slave FX2N 485BD 485BD FX2N 485BD FX2N+FX2NCNV-BD/ FX0N FX0N-485ADP 2. MUNTING AND WIRING 2.1 Mounting Procedure Turn off the power of the programmable controller, and mount the 485BD using the following procedure. Å Remove the panel cover from the top face of the base unit. Ç Connect the connector for programmable controller provided on the 485BD to the board mounting connector provided on the base unit. É Fix the 485BD to the base unit using the M3 self-tapping screws supplied. Tightening torque: 0.3 to 0.6 N•m (3 to 6 kgf•cm) Ñ Remove the cut out on the left of the panel cover using a tool such as nippers or cutters so that the terminal block is accessible. The top face of this terminal block is higher than the top face of the panel cover of the programmable controller by approximately 7 mm. 2.2 Cable and Terminal Resistor 2.2.1 Cable To connect the RS485 (422) unit, use a shielded twisted-pair cable. The cable specification must be AWG 26 to 16, and the maximum tightening torque must be 0.6 N•m (6 kgf•cm). If a cable other than the AWG 26 to 16 is used, normal communication cannot be assured because the terminal may be imperfectly contacted. It is recommended to insert a cable integrated by the crimping tool into the terminal. 2.2.2 Terminal Resistor Provide the terminal resistor at both ends of the line as described in section 2.3.2 and 2.3.3. 1) In the case of two-pair wiring, connect the terminal resistor (330Ω, 1/4W) between terminals SDA and SDB as well as between terminals RDA and RDB. Use the resistors offered as accessories of the 485BD. 2) In the case of one-pair wiring, connect the terminal resistor (110Ω, 1/2W) between terminals RDA and RDB. Use the resistors offered as accessories of the 485BD. 6mm Orange Orange Brown Brown Brown Brown 2.3 Wiring 2.3.1 Selection of Wiring Wiring of RS485 is one-pair wiring or two-pair wiring. The wiring method is decided according to the usage. Please select the wiring method from the table below. Usage One-pair wiring (Refer to section2.3.3) Two-pair wiring (Refer to section2.3.2) No protocol (Use RS instruction) *1 Half-duplex communication §*2 ° Full-duplex communication *3 × ° Dedicated protocol (Use computer link) *1 If is necessary to set the message wait to 70ms or less × ° If is not necessary to set the message wait to 70ms or less §*2 ° Use on-demand function × ° Parallel link (Refer to section 2.3.4) *4 § ° N:N network ° × § . . . . Recommendation, ° . . . . .OK, × . . . . . Can not use *1 When this product is added to the system, please match the wiring to the wiring method of the system. *2 When using 485BD with, this wiring method remember to take account of/or ignore the “echo” of the commands sent from the FX2N programmable controller. *3 Use FX2N programmable controller and 485BD together. *4 For excluding the combination of 485BD, please see below. **1 Connect the SG terminal to SG terminal of FX or FX2C main unit. **2 Connect the shield of shielded twisted pair cable to ground (100Ω or less).please adjust the grounding only to one side. SB SA SG **1 SDA SDB RDA RDB SG 485BD Grounding of resistance 100Ω or less **2 Terminating resistance 110Ω FX2 -40AW 2.3.2 Two-pair Wiring Grounding of resistance 100 or less R*1 R*1 SDA SDB RDA RDB SDA SDB RDA RDB S G SDA SDB RDA RDB LINK S G *3 FG SDA SDB RDA RDB S G *3 FG R*1 R*1 RS485/422 unit 485BD FX(ON)-485ADP A series program m able controller's com puter link unit S G *2 *1 R is the terminating resistance. Connect the terminating resistance (330Ω) between terminals SDA and SDB, and terminals RDA and RDB. *2 The shield of the shielded twisted-pair cable must be connected to ground (100Ω or less). When using parallel link, ground both side. When using no protocol or dedicated protocol, ground one side. *3 Connect terminal FG to each terminal of the programmable controller main body grounded with resistance of 100 or less. However, for the computer link unit of the A series programmable controller, see the manual of the computer link unit. *4 When using RS232/485 or RS232/422 interface, please the use FX-485PC-IF

HEAD OFFICE : MITSUBISHI DENKI BLDG MARUNOUTI TOKYO 100 TELEX : J24532 CABLE MELCO TOKYO HIMEJI WORKS : 840, CHIYODA CHO, HIMEJI, JAPAN 2.3.3 One-pair Wiring Grounding of resistance 100 or less R*1 SDA SDB RDA RDB SDA SDB RDA RDB S G SDA SDB RDA RDB LINK S G *3 F G SDA SDB RDA RDB S G *3 F G R*1 RS485 unit 485BD FX(ON)-485ADP A series programm able controller's com puter link unit S G *2 *1 R is the terminating resistance. Connect the terminating resistance (110Ω) between terminals RDA and RDB. *2 The shield of the shielded twisted-pair cable must be connected to ground (100Ω or less). When using parallel link, ground both side. When using no protocol or dedicated protocol, ground one side. *3 Connect terminal FG to each terminal of the programmable controller main body grounded with resistance of 100 or less. However, for the computer link unit of the A series programmable controller, see the manual of the computer link unit. *4 When using RS232/485 or RS232/422 interface, please the use FX-485PC-IF. 3. SPECIFICATIONS 3.1 General Specifications General specifications are the same as those for the FX2N series programmable controller. 3.2 Power Supply Specification 5V DC, 60 mA is supplied from the programmable controller. 3.3 Specification Item Content Transmission standard Conforming to RS485 and RS422 Transmission distance Max. 50 m LED indicators SD, RD Communication method and protocol N:N network Half-duplex communication Dedicated protocol (format 1 or format 4) Parallel link No protocol Full-duplex communication Supported baud rate Dedicated protocol and no protocol: 300 ~ 19,200 (bps) Parallel link : 19,200 (bps) N:N network : 38,400 (bps) Isolation No isolation Item Content 4. DIAGNOSTICS For error code of N:N network and computer link, refer to the FX Communication User’s Manual. 4.1 Common Items 1) Check the connection with the communication unit of the programmable controller and the wiring. When the connection is unstable, the communication can not be corrected. 2) Check whether the VRRD or VRSC instruction is used in used in the program. If it is used, delete it, turn off the power of the programmable controller, then turn it on again. 3) Each setting of communication format (D8120), parameter of programmable controller by FX-PCS/ WIN-E, N:N network (D8173 to D8180) and parallel link (M8070, M8071) is suitable for the usage or it checks. The communication is not correctly done if setting is not suitable for the usage. When each setting is changed, please turn off the power supply of the programmable controller, and turn it on again. 4) When you use FX0N-485ADP or FX-485ADP in network, please the power supply for the drive must be supplied correctly or check. 4.2 LED Check Items 4.2.1 N:N Network 1) Check the status of the RD LED and the SD LED provided on each 485BD. - If both of them are lit and extinguished, nothing is wrong. - If the RD LED is lit/extinguished but the SD LED is not lit/extinguished (not lit at all), check the setting of the station No.,the baud rate (transmission rate) and the total number of salve stations. - If the RD LED is not lit/extinguished, check the wiring. 2) Make sure that the communication error (FX2N: M8183 to M8190, FX0N: M504 to M511) in each slave station is not turned on and that the data communication flag (FX2N: M8191, FX0N: M503) is not turned off. When one of the communication error flag is turned on or if the data communication flag is turned off, check the error code of data registers (FX2N: D8211 to D8218, FX0N: D211 to D218). For the error code, please see the FX Communication User’s Manual. 4.3 Parallel Link 1) Check the status of the RD(RXD) LED and the SD(TXD) LED provided on each communication unit. - If both of them are lit and extinguished, nothing is wrong. - If the RD(RXD) LED is lit/extinguished but the SD(TXD) LED is not lit/extinguished (not lit at all), check the setting of the master station and the slave stations. - If the RD(RXD) LED is not lit/extinguished, check the wiring. 2) Make sure that the master station and the slave stations are set correctly. If the setting is incorrect, correct it. 3) Make sure that the devices for the master station and the slave stations are handled correctly. If they are handled incorrectly, correct the program so that they are handled correctly. 4.4 Computer Link 1) Check the status of the RD(RXD) LED and the SD(TXD) LED provided on each communication unit. - If both of them are lit and extinguished, nothing is wrong. - If the RD(RXD) LED is lit/extinguished but the SD(TXD) LED is not lit/extinguished (not lit at all), check the setting of the station No. and the transmission rate (baud rate). - If the RD(RXD) LED is not lit/extinguished, check the wiring and confirm the connection with the programmable controller. 2) Make sure that the communication procedure is performed correctly. If it is not performed correctly, correct the setting in the computer. 3) Check the NAK error code and programmable controller error code. For the error code, please see the FX Communication User’s Manual. 4.5 RS Instruction 1) Check the status of the RD (RXD) LED and the SD (TXD) LED provided in an optional equipment. - If the RD (RXD) LED is not lit while data is received or the SD (TXD) LED is not lit while data is sent, check the installation and the wiring. - When the RD (RXD) LED is lit while data is received or the SD (TXD) LED is lit while data is sent, the installation and the wiring are correct. 2) Make sure the timing of data send/receive. For example, make sure that the counterpart equipment is ready for receive before starting to send data to it. 3) When the terminator is not used, check whether the send data capacity is equivalent to the acceptable data capacity. If the send data capacity may be changed, use the terminator. 4) Make sure that the external equipment is correctly operating. 5) Check whether the type of send data and the type of receive data are equivalent. If they are different, make them equivalent. 6) When two or more RS instructions are used in the program, make sure that only one RS instruction is actuated in one operation cycle. Never turn off the RS instruction while data is received or sent. 7) In the FX2N Series (V2.00 or later), an RS instruction is not executed if the counterpart equipment receives “NAK”. Arrange the system so that the RS instruction is executed even if the counterpart equipment receives “NAK”. Manual number : JY992D73401 Manual revision : A Date : MAY 1998 JY992D73401A Effective MAY 1998 Specifications are subject to change without notice Guidelines for the safety of the user and protection of the FX2N-485-BD Communication Board • This manual has been written to be used by trained and competent personnel. This is defined by the European directives for machinery, low voltage and EMC. • If in doubt at any stage during the installation of the FX2N-485-BD always consult a professional electrical engineer who is qualified and trained to the local and national standards. If in doubt about the operation or use of the FX2N-485-BD please consult the nearest Mitsubishi Electric distributor. • Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage that may arise as a result of the installation or use of this equipment. • All examples and diagrams shown in this manual are intended only as an aid to understanding the text, not to guarantee operation. Mitsubishi Electric will accept no responsibility for actual use of the product based on these illustrative examples. • Owing to the very great variety in possible application of this equipment, you must satisfy yourself as to its suitability for your specific application

4.DIAGNOSTICSForerrorcodeofN:Nnetworkandcomputerlink,refertotheFXCommunication User'sManual.4.1CommonItemsCheck the connection with the communication unit of the programmable controller and the wiring.1)Whentheconnection isunstable,thecommunicationcannotbecorrected2)Check whether the VRRD or VRSC instruction is used in used in the program.If it isused,delete it,turnoffthepoweroftheprogrammablecontroller,then turn iton again3)Each setting of communication format (D8120), parameter of programmable controller by FX-PCS/WIN-E, N:N network (D8173 to D8180) and parallel link (M8070, M8071) is suitable for the usage or itchecks.The communication is not correctly done if setting is not suitable for the usageWhen each setting is changed,please turn off thepower supply of theprogrammable controller,andturn it on again.4)When you use FXoN-485ADP or FX-485ADP in network, please the power supply for the drive mustbesuppliedcorrectlyorcheck4.2LEDCheckItems4.2.1 N:N NetworkCheckthestatusoftheRDLEDandtheSDLEDprovidedoneach485BD1)If bothof them arelitandextinguished,nothing is wrong.If the RDLED is lit/extinguished but the SD LED isnotlit/extinguished (not lit at all),check thesetting of the station No.,the baud rate (transmission rate) and the total number of salve stations.If the RD LED is not lit/extinguished, check the wiring.2)Makesurethatthecommunicationerror (FX2N:M8183toM8190,FXon:M504toM511)ineachslavestationisnotturnedonandthatthedatacommunicationflag(FX2N.M8191,FXon:M503)isnotturned off.When one of the communication error flag is turned on orif the data communication flag isturned off,check the error code ofdata registers (FX2N:D8211 to D8218,FXoN:D211to D218).Fortheerorcode,pleaseseetheFXCommunicationUser'sManual.4.3 Parallel LinkCheck the status of the RD(RXD) LED and the SD(TXD) LED provided on each communication unit.1)If both of them are lit and extinguished,nothing is wrong.If the RD(RXD) LED is lit/extinguished but the SD(TXD) LED is not lit/extinguished (not lit at all),check the setting of the master station and the slave stationsIf the RD(RXD) LED is not lit/extinguished, check the wiring.2)Make sure that the master station and the slave stations are set correctly.If the setting is incorrectcorrect it.Make sure that the devices for the master station and the slave stations are handled correctly. If they3)are handled incorrectly,correct the program so that they are handled correctly.4.4ComputerLinkCheck the status of the RD(RXD) LED and the SD(TXD) LED provided on each communication unit1If both of them are lit andextinguished,nothing is wrong.If the RD(RXD) LED is lit/extinguished but the SD(TXD) LED is not lit/extinguished (not lit at all),checkthesetting ofthe station No.and thetransmission rate (baud rate)If the RD(RXD) LED is notlit/extinguished, check the wiring and confirm the connection with theprogrammable controller.Make sure that the communication procedure is performed correctly. If it is not performed correctly2)correctthesetting inthe computer.Check the NAK error code and programmable controller error code3)For the error code, please see theFx Communication User's Manual

HEAD OFFICE : MITSUBISHI DENKI BLDG MARUNOUTI TOKYO 100 TELEX : J24532 CABLE MELCO TOKYO HIMEJI WORKS : 840, CHIYODA CHO, HIMEJI, JAPAN 2.3.3 One-pair Wiring Grounding of resistance 100 or less R*1 SDA SDB RDA RDB SDA SDB RDA RDB S G SDA SDB RDA RDB LINK S G *3 F G SDA SDB RDA RDB S G *3 F G R*1 RS485 unit 485BD FX(ON)-485ADP A series programm able controller's com puter link unit S G *2 *1 R is the terminating resistance. Connect the terminating resistance (110Ω) between terminals RDA and RDB. *2 The shield of the shielded twisted-pair cable must be connected to ground (100Ω or less). When using parallel link, ground both side. When using no protocol or dedicated protocol, ground one side. *3 Connect terminal FG to each terminal of the programmable controller main body grounded with resistance of 100 or less. However, for the computer link unit of the A series programmable controller, see the manual of the computer link unit. *4 When using RS232/485 or RS232/422 interface, please the use FX-485PC-IF. 3. SPECIFICATIONS 3.1 General Specifications General specifications are the same as those for the FX2N series programmable controller. 3.2 Power Supply Specification 5V DC, 60 mA is supplied from the programmable controller. 3.3 Specification Item Content Transmission standard Conforming to RS485 and RS422 Transmission distance Max. 50 m LED indicators SD, RD Communication method and protocol N:N network Half-duplex communication Dedicated protocol (format 1 or format 4) Parallel link No protocol Full-duplex communication Supported baud rate Dedicated protocol and no protocol: 300 ~ 19,200 (bps) Parallel link : 19,200 (bps) N:N network : 38,400 (bps) Isolation No isolation Item Content 4. DIAGNOSTICS For error code of N:N network and computer link, refer to the FX Communication User’s Manual. 4.1 Common Items 1) Check the connection with the communication unit of the programmable controller and the wiring. When the connection is unstable, the communication can not be corrected. 2) Check whether the VRRD or VRSC instruction is used in used in the program. If it is used, delete it, turn off the power of the programmable controller, then turn it on again. 3) Each setting of communication format (D8120), parameter of programmable controller by FX-PCS/ WIN-E, N:N network (D8173 to D8180) and parallel link (M8070, M8071) is suitable for the usage or it checks. The communication is not correctly done if setting is not suitable for the usage. When each setting is changed, please turn off the power supply of the programmable controller, and turn it on again. 4) When you use FX0N-485ADP or FX-485ADP in network, please the power supply for the drive must be supplied correctly or check. 4.2 LED Check Items 4.2.1 N:N Network 1) Check the status of the RD LED and the SD LED provided on each 485BD. - If both of them are lit and extinguished, nothing is wrong. - If the RD LED is lit/extinguished but the SD LED is not lit/extinguished (not lit at all), check the setting of the station No.,the baud rate (transmission rate) and the total number of salve stations. - If the RD LED is not lit/extinguished, check the wiring. 2) Make sure that the communication error (FX2N: M8183 to M8190, FX0N: M504 to M511) in each slave station is not turned on and that the data communication flag (FX2N: M8191, FX0N: M503) is not turned off. When one of the communication error flag is turned on or if the data communication flag is turned off, check the error code of data registers (FX2N: D8211 to D8218, FX0N: D211 to D218). For the error code, please see the FX Communication User’s Manual. 4.3 Parallel Link 1) Check the status of the RD(RXD) LED and the SD(TXD) LED provided on each communication unit. - If both of them are lit and extinguished, nothing is wrong. - If the RD(RXD) LED is lit/extinguished but the SD(TXD) LED is not lit/extinguished (not lit at all), check the setting of the master station and the slave stations. - If the RD(RXD) LED is not lit/extinguished, check the wiring. 2) Make sure that the master station and the slave stations are set correctly. If the setting is incorrect, correct it. 3) Make sure that the devices for the master station and the slave stations are handled correctly. If they are handled incorrectly, correct the program so that they are handled correctly. 4.4 Computer Link 1) Check the status of the RD(RXD) LED and the SD(TXD) LED provided on each communication unit. - If both of them are lit and extinguished, nothing is wrong. - If the RD(RXD) LED is lit/extinguished but the SD(TXD) LED is not lit/extinguished (not lit at all), check the setting of the station No. and the transmission rate (baud rate). - If the RD(RXD) LED is not lit/extinguished, check the wiring and confirm the connection with the programmable controller. 2) Make sure that the communication procedure is performed correctly. If it is not performed correctly, correct the setting in the computer. 3) Check the NAK error code and programmable controller error code. For the error code, please see the FX Communication User’s Manual. 4.5 RS Instruction 1) Check the status of the RD (RXD) LED and the SD (TXD) LED provided in an optional equipment. - If the RD (RXD) LED is not lit while data is received or the SD (TXD) LED is not lit while data is sent, check the installation and the wiring. - When the RD (RXD) LED is lit while data is received or the SD (TXD) LED is lit while data is sent, the installation and the wiring are correct. 2) Make sure the timing of data send/receive. For example, make sure that the counterpart equipment is ready for receive before starting to send data to it. 3) When the terminator is not used, check whether the send data capacity is equivalent to the acceptable data capacity. If the send data capacity may be changed, use the terminator. 4) Make sure that the external equipment is correctly operating. 5) Check whether the type of send data and the type of receive data are equivalent. If they are different, make them equivalent. 6) When two or more RS instructions are used in the program, make sure that only one RS instruction is actuated in one operation cycle. Never turn off the RS instruction while data is received or sent. 7) In the FX2N Series (V2.00 or later), an RS instruction is not executed if the counterpart equipment receives “NAK”. Arrange the system so that the RS instruction is executed even if the counterpart equipment receives “NAK”. Manual number : JY992D73401 Manual revision : A Date : MAY 1998 JY992D73401A Effective MAY 1998 Specifications are subject to change without notice Guidelines for the safety of the user and protection of the FX2N-485-BD Communication Board • This manual has been written to be used by trained and competent personnel. This is defined by the European directives for machinery, low voltage and EMC. • If in doubt at any stage during the installation of the FX2N-485-BD always consult a professional electrical engineer who is qualified and trained to the local and national standards. If in doubt about the operation or use of the FX2N-485-BD please consult the nearest Mitsubishi Electric distributor. • Under no circumstances will Mitsubishi Electric be liable or responsible for any consequential damage that may arise as a result of the installation or use of this equipment. • All examples and diagrams shown in this manual are intended only as an aid to understanding the text, not to guarantee operation. Mitsubishi Electric will accept no responsibility for actual use of the product based on these illustrative examples. • Owing to the very great variety in possible application of this equipment, you must satisfy yourself as to its suitability for your specific application