User`s Manual for PFB
Contents
1. FOURSTAR User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators i za g a a Er o cH SdqINOI 0 seit fet OS A SNELAOUd ts fee Dts fg dad snid SNAIJONd PALTOSI ATEI PA ki iy p E ce z C z fu Deyang FOURSTAR Electronic Technology Co Ltd All rights reserved FOURSTAR amp EF User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators Contents FOC OT eT a Oe eT ae a ae ee ee eer 3 Oy ISIE UAT o E tosdeapanieaaeonaiteaiantnosueotsbusauuaseusanet monchostwoneesnausssene 3 Vono oe 6 8 ee rr rrr rrr me 4 PEOGUCE 1181 2ssnasransonactansanacancanacteasonestancanagsensonastansanasteasonastaasaaaphansonassaasanaptansonastaasanaptansonestaasnnastansenestaasenactes 4 1 Main applications and Characteristics of PPB G iesstsecc csecotes vedeocevextsacessedeedescetuntusiatsavssextiacesbedioteeetuetivers 4 2 Features and main technical data Of Product 00 cccccssssssssssseeeeeccccceeeeeeeaeaaeessssseeeeeeeeeeeeseeseeeeaaeeeeeseees 7 3 External struct re and pin definitions sesirik eatae aseTi netes b iak irabia 8 A Internal functional DIOCK CIACTAM s02 sssasnscsececnnecnessunacusasenasnascnnetacedenessansusadasndanssnonnneadaaocsnasuansasssnaadnnass 12 5 Installation method and operating method Of PFB G cc ccccccccccccceeceeaeeeeeeeseeeeeeceeeeeeeeeeeeaaaaaeeeenees 13 TO E E E S A E 182. 7 Ordern miormaN O sera cea E ea nee ERE esta each Sade adn ne net en waa seh sags goed pene ENORA EREE 2 ANE TG Valib PE OCC Is A T ET sa adnsasnonsunedeansneatsandanedneaduaasoeasunensaaseseneenponadosnsssannancunenaaecenes 22 aD Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www fourstar dy com FOURSTAR JU As User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators Foreword Thank you for using our PROFILBUS network component products Please read this User s Manual carefully before using the product so that you can experience its excellent anti interference function and interface protection function as well as easy operation The isolated PROFIBUS bus connector also called PROFIBUS isolator developed and produced by us has a model of PFB G For easier statement we will directly use its model below We have another product PFB GP related to this product PFB GP is an isolated PROFIBUS bus connector with a programming interface Except for its programming interface PFB GP has the same functions as that of PFB G The product is mainly used on the PROFIBUS interfaces MPI interfaces and PPI interfaces of industrial control devices to isolate RS485 signals realize lightning surge protection suppress the interference in communication and protect device interfaces It is particularly suitable for the places with serious interference It sol
3. s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators can limit surge or lightning voltages in the safe range thus preventing communication interfaces from damage 2 Features and main technical data of product Isolation voltage 1500VDC The power interfaces and the RS485 interfaces are completely isolated so are the RS485 interfaces themselves Power supply It automatically chooses the 24VDC 10 power supply provided by the positive pole of pin 7 and the negative pole of pin 2 on the PLC s programming interface or PROFIBUS DP socket DB9F socket or the SVDC 10 power supply provided by the positive pole of pin 6 and the negative pole of pin 5 Power consumption About 0 7W Communication rate 0 10Mbps no delay self reacting It is internally integrated with a terminating resistor and a biasing resistor Switching between the resistors can be realized through a switch It has a PWR power diagnosis indicator a TXD transmitting data diagnosis indicator RXD receiving data diagnosis indicator and a Term terminating resistor diagnosis indicator The maximum cable lengths at different transmission rates comply with the PROFIBUS standard Transmission rate 9 6K 19 2K 45 45K 93 75K 187 5K 500K 1 5M 3M 6M bit s Maximum cable 1200 1000 400 200 100 length m At most 32 PFB Gs can be installed on a bus segment The number may be up to hundreds with the help of a PRO
4. The switch is put on the on position so the Term LED diagnosis indicator is out 3 PROFIBUS bus cable 4 RS485 terminals The PFB Gs in the network are connected with terminals Al RS485 signal green B1 RS485 signal red A2 RS485 signal green and B2 RS485 signal red 5 DB9M plug It is inserted into the PROFIBUS MPI PPI socket of the device directly 5 3 Network topology based on PFB G PFB G also has a bus network topology branching are not allowed for its bus if branching are necessary PROFIBUS repeaters or concentrators should be installed at the branches which is the same as conventional non isolated PROFIBUS bus connectors The mini PROFIBUS repeater PFB R developed by 15 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR us can realize branching for buses easily and conveniently If there are more than 32 stations in a bus or the total length is larger than the maximum length allowed for the corresponding transmission rate specified in the PROFIBUS standard PROFIBUS repeaters or concentrators need to be installed for bus branching too O a a a araa REFA el ites Es Pe A 5 Bal nie Fig 5 3 Network Topology Based on PFB G 16 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR When th
5. ee Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www fourstar dy com FOURSTAR JU Ay User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators Declaration This document is prepared to guide users to use PFB G isolated PROFIBUS bus connectors In consideration of rapid development of new technologies please refer to the real product for its functions We reserve the right to revise this document without declaration Deyang FOURSTAR Electronic Technology Co Ltd Add 2F Building H 88 Sec 2 South Lushan Road Deyang City Sichuan Tel 86 838 2515543 2515549 Fax 86 838 25 15546 Website http www fourstar dy com mee Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www fourstar dy com
6. 38 25 15543 FAX 86 838 25 15546 http www fourstar dy com FOURSTAR JU As User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators 6 FAQ 6 1 Where the operational power supply of PFB G is obtained As long as pins 6 and 5 of the PROFIBUS MPI PPI socket DB9F socket of the device output a 5VDC voltage or pins 7 and 2 output a 24VDC voltage PFB G can obtain a normal operating voltage The power consumption of PFB G is about 0 7 W which can be met as long as the PROFIBUS MPI PPI socket DB9F socket is designed according to relevant standard 6 2 Can PFB G be used for some devices such as Siemens S7 1200PLC For the DB9F socket of the RS485 interface on the RS485 module CM1241 of such a device there is no 24VDC output voltage between pins 7 and 2 or 5VDC output voltage between pins 6 and 5 however a 100 Q resistor connected in series in the device In this case PFB G should not be used There is a 100 Q resistor connected in series in the device so no load is allowed for the space between pins 6 and 5 on the DB9 F socket although an open circuit voltage of 5VDC is measured between pins 6 and 5 by a multimeter the measured voltage is less than 2 V after a 50 Q resistor 1s installed between the two pins BH 485G another isolator of us may be used for isolating the RS485 interfaces of these devices BH 485G is a general RS485 isolator in line with standard rail installation and with an external p
7. 543 FAX 86 838 25 15546 http www fourstar dy com FOURSTAR JU Ay User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators 5 Installation method and operating method of PFB G The communication cable in connection with PFB G must be a special cable product S N of Siemens 6X V1 830 QEH10 in line with the PROFIBUS standard which is the same as conventional non isolated PROFIBUS bus connectors See Table 5 1 for general features of the communication cable Table 5 1 Features of PROFIBUS Special Cable Sectional area of conductor 24AWG 0 35mm or thicker Cable capacitance lt 60pf m Characteristic impedance 100Q 120Q 1 E Cable sheath 2 B Shield 3 BFS Plastic insulator 4 iSt Copper conductor F ate E A T eA a mm PROFIBUS GHEARR PROFIBUS cable stripping dimensions Note PFB G must be inserted into the DB9F socket of the PROFIBUS MPI PPI socket of a device There should be no extension cable or other bus plugs or devices between PFB G and the DB9F socket 213 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www fourstar dy com FOURSTAR AS User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators 5 1 Wiring when PFB G 1s installed on a bus terminal The head and tail of a PROFIBUS cable are called terminators When PFB G is installed on a termina
8. D diagnosis indicators Product model PFB G safe Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR JU Ay User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators 8 Relevant products You may get information about the following products related to PFB G from our official website Isolated PROFIBUS bus connector with a programming interface It has a programming interface for easy insertion of various programming cables and diversified communication cards touch screens etc Its other functions applications and technical data are the same as that of PFB G It can be used as a substitute for conventional non isolated bus connectors directly Website http www fourstar dy com product asp m 8 Mini PROFIBUS MPI PP repeater With an appearance the same as that of a PROFIBUS bus connector plug and an adaptive rate of 0 Mbps to 12 Mbps it needs no external power supply and should be inserted into the PROFIBUS or MPI PPI socket of a device directly The two way extended communication distance and the number of the added stations both comply with the PROFIBUS standard It can realize a bus network topology a hybrid network topology etc It adopts a power supply RS485 RS485 complete isolation mode and has a lightning surge protection function and communication indicators Website http www fourstar dy com product asp m 8 Mini PR
9. FIBUS repeater or a concentrator The isolated RS485 interfaces have lightning surge protectors and repeatable surge capacity Ipp of 100A 10 700us 4K V which complies with ITU TK20 21 and VDE 0433 Furthermore the product has a function of 15KV ESD electrostatic protection It has a function of self recovering overcurrent protection The isolated RS485 interfaces can withstand ote Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www fourstar dy com FOURSTAR AS User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators the continuous overcurrent generated by a continuous voltage up to 60 V Operating temperature 40 85 C industrial level External dimensions 80mmx17mmx40mm LxWxH Weight 50 g Installation method Inserting it into the standard PROFIBUS MPI PPI socket DB9F socket of a device directly 3 External structure and pin definitions 3 1 External structure Terminating resistor switch owl Bis a 6 Vata Power indicator a T A Data transmission avoc Data reception G 7 S cre Terminating resistor wk cmg 7 1 rA azii indicator y lt r 5 z Fig 3 1 Outside View of PFB G _Q Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www fourstar dy com FOURSTAR TE LE BF User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators 3 2 I
10. OFIBUS multimode optical fiber link adapter Also called optical fiber bus connector it has the same size as that of a PROFIBUS bus connector plug and an adaptive rate of 0 Mbps to 12 Mbps It needs no external power supply and should be directly inserted into the PROFIBUS MPI PPI socket of a device or into the bus connector that is installed on a bus and has a programming interface It can form a bus type star type or hybrid type PROFIBUS optical fiber network and realize convenient and flexible use With a standard ST optical fiber interface it is applicable to the multimode 62 5 125um or 50 125um optical fiber and has a transmission distance of 0 km to 4 km Website http www fourstar dy com product asp m 9 Mini PROFIBUS singlemode optical fiber link adapter Also called optical fiber bus connector it has the same size as that of a PROFIBUS bus connector plug and an adaptive rate of 0 Mbps to 12 Mbps It needs no external power supply and should be directly inserted into the PROFIBUS MPI PPI socket of a device or into the bus connector that is installed on a bus and has a programming interface It can form a bus type star type or hybrid type PROFIBUS optical fiber network and realize convenient and flexible use With a standard ST optical fiber interface it 1s applicable to the singlemode 9 125um 10 125um or 8 3 125um optical fiber and has a transmission distance of 0 km to 12 km Website http www fourstar dy com product asp m 9
11. agram of interior of a conventional non isolated PROFIBUS bus connector plug 5000 6 Bice POR k ae ems OF pina D SUB Male Connector 390 FAMN OH pops et p aj i ae al FA A0FF OFF nese ciel cha Al El Ae Ee Fig 6 3 Schematic Diagram of Interior of a PROFIBUS Bus Connector Plug When the switch is put on the on position there is a terminating resistor and a biasing resistor When the switch is put on the off position there is no terminating resistor or a biasing resistor 6 4 Power failure cannot be absolutely avoided for terminal stations Why If a terminal station needs a power failure due to site condition limitation or a bus connector cannot be installed on it because its DP interface is a connection terminal terminals of the network segment should be installed with active terminating resistors keep them from power failure to serve as terminals of the network segment to ensure normal communication for the network The active terminating resistor product S N of Siemens is 6ES7 972 ODA00 OAAO and that of us is PB TR485 After being installed with active terminating resistors terminals of a PROFIBUS network segment can maintain a standard bus voltage so disconnection of any station on the bus from the network will not result 19 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR JU Ay User s Manual o
12. e switch is put on the on position there is a terminating resistor and a biasing resistor When the switch is put on the off position there is no terminating resistor or a biasing resistor When the switch is put on the on position there is a terminating resistor and a biasing resistor 5 4 Diagram of application of PFB G PFB G may be used with PFB GP with a programming interface Install PFB GPS at a station needing access of a programming device or a human machine interface and PFB G at a station without such a need to save engineering costs Of course all the stations may be installed with PFB GPs so that debugging personnel can access a programming device debugging system at any station The RS485 interfaces of such devices such as inverters are not convenient for PFB G installation due to a terminal shape In this case user may choose BH 485G or E485GP another isolator of us with an external structure made up of standard rails and terminals x Base PC Adapter S Inverter PLC E int 5 ET200 ani PFB G PFB GP PFB GP R ON R OFF R OFF Subnetwork 1 up to 32 stations HMI NotoBook PC CP5512 pika ig Repeater jee be R ON x z aise x 3 E Inverter Ww ver z a Drive Ww f BE i 4 PFB GP PFB G PFB GP PFB G R ON R OFF R OFF R OFF Subnetwork 2 up to 32 stations Fig 5 4 Diagram of Application of PFB G nite Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 8
13. erface of our PROFIBUS concentrator FS PBHUB 6 is separately isolated so it is not necessary to use an isolated bus connector but a cheap non isolated bus connector However if you think it is necessary to use an isolated bus connector you may use a PFB G or PFB GP isolated bus connector After PFB G or PFB GP isolated bus connectors are installed on a PROFIBUS concentrator the maximum communication rate will be 3Mbps After the PROFIBUS concentrator is inserted with six PFB G or PFB GP isolated bus connectors it will generate a certain amount of heat because the six PFB G or 20 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www fourstar dy com FOURSTAR py Fa User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators PFB GP isolated bus connectors will have a rough power consumption of above 4W The heat of the PROFIBUS concentrator is in the permissible range and will not affect its normal running 6 7 Is it allowed to insert a bus connector with a programming interface into the PROFIBUS MPI PPI socket of a device and then insert PFB G into the bus connector It is not allowed PFB G must be inserted into the DB9F socket of the PROFIBUS MPI PPI socket of a device directly There should be no extension cable or other bus plugs or devices between PFB G and the DBY9YF socket 7 Ordering information Product name Isolated PROFIBUS bus connector with LE
14. f PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators in network faults Power failure of any terminal of the network segment will affect communication of the whole network segment making it necessary to replace all the terminals with possible power failure by active terminating resistors and to keep the active terminating resistors from power failure Air Sum FS NA a 1 1 B TR485 R OFF A OFF Fig 6 4 Installation of an Active Terminating Resistor for a Terminal with Possible Power Failure Active terminating resistor 6 5 How to realize high speed long distance communication for PROFIBUS High speed communication is an advantage of PROFIBUS compared with ordinary RS485 however in PROFIBUS communication at a high transmission rate the cable transmission distance is very short For example the cable transmission distance corresponding to a transmission rate higher than 3Mbps is 100 meters at most If multiple repeaters or concentrators are installed to solve this problem there will be new problems such as more serious signal delay higher cost and difficult power supply Optical fiber transmission is the currently best solution for the problem Our PROFIBUS converter optical fiber modules FS OLM S and FS OLM M or mini PROFIBUS optical fiber link adapters PFB FIB M and PFB FIB S are embodiments of the best solution 6 6 Can PFB G be inserted into your PROFIBUS concentrator FS PBHUB 6 for use Each DP int
15. inverter s As a result communication becomes discontinuous have wrong data etc After a PFB G is installed on the communication interfaces the earth potential differences can be eliminated thus avoiding or weakening the communication interference Solving the problem of communication interface damage due to too large earth potential differences of stations PROFIBUS interfaces MPI interfaces and PPI interfaces all use RS485 interface chips According to the EIA TIA RS485 standard RS485 interface chips can bear a maximum signal voltage of 7V to 12V If the actual signal voltages are not within the range the RS485 interface chips will be damaged or the communication will be abnormal Due to construction cabling power distribution or other unknown abnormal factors the earth potential difference of two stations is often tens of volts larger than the range which is enough to damage RS485 interfaces Avoiding communication interface damage due to surge or lightning When cables have sensed lightnings or communication cables are very close to strong current power cables or high power devices are started or stopped communication interfaces may be damaged by the surge voltages generated in relevant communication cables The lightning surge protective components in PFB G in compliance with the I TU TK20 21 standard can limit surge voltages in the safe range thus preventing communication interfaces from damage Even if the surge or lightni
16. ng energy goes beyond the protective range of the components only the PFB G rather than the devices will be damaged and replacing the damaged PFB G can resume production quickly and minimize the idling period due to lightning Repairing communication interfaces Sometimes some strange soft failures may happen in communication due to factors such as design or manufacturing defects or communication interface faults not complete damage Usually PFB G can avoid these failures Searching network faults or device faults easily and quickly through the LED diagnosis indicators 5 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR py Fa User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators Main characteristics It has the same appearance and operating method as conventional non isolated PROFIBUS Bus Connector plugs small land occupation because of a small volume and easy installation and needs no external power supply It can replace non isolated bus connectors directly and be used after being plugged onto the PROFIBUS DP sockets or MPI PPI sockets of devices Technical development and high integration of chips make it a reality to install such complicated circuit devices as PFB G into the small plugs Its physical layer can realize transparent transmission PFB G realizes transparent bit transmission on its physical laye
17. nternal structure DC DC ha ARR DC DC Isolated Power Modules oat 5 DPA Zin FB BA FR DP Plug Terminating Resistor Switch Se ary LED NAT Speed Optocoupler LED Indicator RS485 Fr RS485 Chips SRNT Terminals PTCA REA bed PTC Resettable Insurance E ERR RP as i Lightning Protection seth Ground Lug Fig 3 2 Inside View of PFB G Os Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www fourstar dy com FOURSTAR JU Ay User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators 3 3 Indicators PFB G has four LED diagnosis indicators including a PWR power diagnosis indicator a TXD transmitting data diagnosis indicator a RXD receiving data diagnosis indicator and a Term terminating resistor diagnosis indicator See the table below for statuses of the indicators LED diagnosis Remaining lit Flickering 5Hz Out PWR green The power supply is There is a fault There 1s no power input or we eo e pont TXD yellow There is a fault It is transmitting data to a There is no data Deen a imme RXD green There is a fault It is receiving data from a No data have been received bus cable Term yellow The interior 1s There is a fault The interior is not connected connected with the with the terminating resistor terminating resistor 3 4 Signal definitions of the DB9M pins of the PROFIBUS interface of PFB G DB RS485 signal In
18. ower supply and performance the same as that of PFB G For the DP module CM1242 CM1243 of Siemens S7 1200PLC the SVDC output voltage between pins 6 and 5 on the DP socket can provide a 15mA output current only only a BH 485G RS485 isolator with an external power supply rather than PFB G can be used 6 3 Power failure is not allowed for the stations serving as terminals in network segments Why The head and tail of a PROFIBUS network segment are called terminators To suppress the reflection and distortion of RS485 signals the terminal cable needs to be connected to terminals Al and B1 of the bus connector and the terminating resistor switch on the bus connector plug of the terminal interface must be put on the ON position Thus a 220 terminating resistor a 390 Q pull up resistor and a 390 Q pull down 18 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR py Fa User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators resistor are accessed to the terminal interface for stable running of the network The 390 Q pull up resistor and the pull down resistor need a 5VDC operational power supply provided by pins 6 and 5 on the DP socket In the case of a power failure of a terminal station the 5VDC will no longer exist thus resulting in a communication abnormality or failure of the network The figure below is the schematic di
19. put output DA RS485 signal Input output 5VDC Positive pole at the input end of Input the SVDC power supply 7 24V Positive pole at the input end of Input ON e OV Negative pole at the input end of Input the 24VDC power supply a9 Notued ose Si Note As long as pins 6 and 5 of the PROFIBUS MPI PPI socket DB9F socket of the device output a SVDC voltage or pins 7 and 2 output a 24VDC voltage PFB G can obtain a normal operating voltage and the PWR diagnosis indicator will be lit 5 GND Negative pole at the input end of Input the SVDC power supply 10 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR JU Ay User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators 3 5 RS485 signal terminals of PFB G Signal Function Color of the Description terminal cable connected Al Isolated RS485 signal The signal terminal is disconnected from A2 when the switch is on the on position and connected with A2 when the switch is on the off position Bl Isolated RS485 signal The signal terminal is disconnected from B2 when the switch is on the on position and connected with B2 when the switch is on the off position A2 Isolated RS485 signal Green The signal terminal is disconnected from A1when the switch is on the on position and connected with Al when the switch i
20. r which has nothing to do with the upper layer protocol so PFB G is applicable to all the RS485 based PROFIBUS protocols including PROFIBUS DP V0O V1 V2 and various application guild regulations PFB G supports the connection for multi main station communication such as the S7 FUNCTION protocol and Cat 2 main station communication In addition it supports the MPI protocol the PPI protocol and the RS485 freeport protocol based communication and is suitable for other field buses or networks based on other RS485 transmission technologies PFB G of the V3 1 version is designed with a PWR power diagnosis indicator a TXD transmitting data diagnosis indicator RXD receiving data diagnosis indicator and a Term terminating resistor diagnosis indicator for easy diagnosis of network faults and device faults and convenient and quick judgment and handling of the faults by field engineers With an adaptive Baud rate of 0 Mbps to 10 Mbps it needs neither switch setup nor any software The power interfaces and the RS485 are completely isolated so are the RS485 interfaces thus eliminating the earth potential differences of the stations and avoiding or weakening the communication interference The lightning surge protective components in PFB G in compliance with the ITU TK20 21 standard 6 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR JU Ay User
21. s on the off position Isolated RS485 signal The signal terminal is disconnected from B1 when the switch is on the on position and connected with B1 when the switch is on the off position Ground lug Chassis ground Shield The signal terminal is communicated with the device s chassis 3 6 Terminating resistor switch of PFB G Switch Description position on Interiors of terminals Al and B1 are connected with a 220 Q terminating resistor a 390 2 pull up resistor and a 390 Q pull down resistor and terminals Al and A2 and terminals B1 and B2 are disconnected respectively pull up resistor and a 390 Q pull down resistor and terminals Al and A2 and terminals B1 Interiors of terminals Al and B1 are not connected with a 220 Q terminating resistor a 390 Q and B2 are connected respectively sJi Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR JU Ay User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators 4 Internal functional block diagram D SUB DEDE Male Connector Y cc Isolated 247 7 IC DE Isolated ece DC De Veci Veci eel Veci Isolated Vel Term RAD TED PWR r Isolated on S30 220 330 mW FG Al B1 A2 B2 Fig 4 1 Internal Functional Block Diagram of PFB G _12 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15
22. tor the PROFIBUS cable should be connected with terminals Al and B1 only and the terminating resistor switch should be put on the on position E GP GP E Bs I _ n E ie Fig 5 1 Wiring When PFB G PFB G is Installed on a Bus Terminal In the figure 1 Terminating resistor switch The PFB Gs at two terminals of the network are put the on position 2 LED indicator The switch is put on the on position so the Term LED diagnosis indicator is lit 3 PROFIBUS bus cable 4 RS485 terminals Two terminals Al RS485 signal green and B1 RS485 signal red of the network 5 DB9M plug It is inserted into the PROFIBUS MPI PPI socket of the device directly 5 2 Wiring when PFB G is installed between buses 14 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR rit Aas User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators At most 30 PFB Gs can be installed between the two terminals of a bus The cable should be connected with terminals Al and B1 and terminals A2 and B2 and the terminating resistor switch should be put on the off position ae Eat Beets pepe TE Pisa Eras Fig 5 2 Wiring When PFB G is Installed Between Buses In the figure 1 Terminating resistor switch All the PFB Gs in the network are put on the off position 2 LED indicator
23. ves problems such as communication interface damage and communication interference due to an earth potential difference Furthermore its four LED indicators enable users to judge network or device faults easily and intuitively With an operating method exactly the same as that of non isolated PROFIBUS bus connectors the product can be used as a substitute for conventional bus connectors directly Please operate according to the technical specification and performance parameters introduced in this User s Manual We shall not be responsible for any property losses or personal injuries due to improper operation of the product by users We shall have the right to change both content of his User s Manual and the functions of the product in line with the need of technical development and without declaration Copyright statement We are owner of the copyright of this User s Manual Any persons or organizations copying all or partial content of it without our written permission shall assume the corresponding legal responsibilities FOURSTAR NERF is the registered trademark of Deyang FOURSTAR Electronic Technology Co Ltd E Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR JU Ay User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators All the other trademarks or registered trademarks mentioned in this document are owned b
24. y their own trademark owners Version information Document name User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators Version V3 1 Document and Product Revision History 2004 07 To create a document for a newly launched product 2006 08 To revise the User s Manual after the first upgrade of the product 2013 05 Rewrite the User s Manual after the second upgrade of the product 2013 09 Revise and add some figures and FAQ Product list 1 PFB G Ipcs 2 User s Manual on a CD Ipcs this product needs no driver software because it is a plug and play one 1 Main applications and characteristics of PFB G Main applications Suppressing the interference of communication interfaces Usually many devices with a PROFIBUS MPI or PPI interface such as PLCs PROFIBUS remote I O inverters and field instruments have non isolated RS485 communication interfaces When multiple stations form a PROFIBUS network the earth potential differences of the stations will generate vertical interference at the communication sia Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www fourstar dy com FOURSTAR py Fa User s Manual of PFB G Isolated PROFIBUS Bus Connector with LED Diagnosis Indicators interfaces due to the difference earth potentials of the stations The communication interference is the most serious when the network is connected with
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