User Manual For FS-PBHUB
Contents
1. www FOURSTAR dy com FOURSTAR II Main Applications and Features of Mini PROFIBUS Repeater PROFIBUS Repeater has following Main Applications 1 Bus branching functions of a hub PROFIBUS network is of bus topology not allowing branches which makes wiring difficult Installing a repeater at the junction can amplify one more bus since the repeater can change PROFIBUS bus topology and achieve other network structures like star structure and mixed pattern which are convenient for wiring See Figure 2 1 E 1 Repeater FS PBHUB 2 i am i am I A ON R OFF F R OFF Segment 1 Repeater won J wo FS PBHUB 2 7 Segment 3 yo Segment 2 Fig 2 1 Bus branching achieved through the repeater 2 Functions of the repeater PROFIBUS Repeater has two pair of interfaces Each of the two drive one PROFIBUS network segment respectively which means another 31 station interfaces can be connected and the max transmission distance under corresponding transmission rate can be prolonged Moreover cascade connection can also be realized Consequently PROFIBUS network of mixed pattern is constituted through the repeater and the stations can be as many as 126 The transmission distance can be as long as several kilometers based on the number of cascade connection related to the used transmission baud rate 6s Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www2. 543 FAX 86 838 25 15546 http www FOURSTAR dy com FOURSTAR Preface Thank you for using Fieldbus Network Products released by Deyang FOURSTAR Electronic Technology Co Ltd Before use make sure to carefully read the User Manual where you will find brief operation methods and perfect functions of this product The manual will offer detailed information about the operation methods of FOURSTAR PROFIBUS Repeater FS PBHUB 2 also called two port PROFIBUS Hub FS in the modell No is short for the registered trade mark of Deyang FOURSTAR Electronic Technology Co Ltd The product is mainly used in Fieldbus Network like PROFIBUS MPI PPI etc It isolates repeats and amplifies Signal RS485 in order to prolong the communication distance and increase the number of stations or change the topological structure of PROFIBUS MPI PPI Network Such device aims to bring convenience to the field s wiring installation prolong the network s transmission distance and increase the quantity of stations Meanwhile it can isolate network and diagnose signal indication Please do follow the technical and functional specifications in the manual The company does not assume the property loss or personal injury caused by user s improper handling The company has the right to modify the manual s contents and product function if the technical development requires before announcement Copyright Statement The manual s copyright belongs to Deyang FOURSTAR El
3. FOURSTAR FOURSTAR PROFIBUS Repeater FS PBHUB 2 User Manual FS PBHUB 2 PROFIBUS MPI PPI RS485 twinRepeater 0 12Mbps Rate Automatic adaptive RXD1 RXD2 Deyang FOURSTAR Electronic Technology Co Ltd All rights reserved FOURSTAR Contents Preface cis Sacustelea wis situs ban nieneauteh bined dig A R E E E EAEE 3 Copyright Statement eero aa A ond das otaden OEA A AA EERE 3 Version Informati n srecan arnee a T EA EA EE EE 3 Packaging LASts sc csees evicyaeriayaetiereg sides ce NANO AEAEE EAEE OANT 4 I Basic Features of PROFIBUS Network 20 0 0 ccc cece ence ne ee ne eae nena een e nesses ease eneneeneneneea 4 II Main Applications and Features of PROFIBUS Repeater ceccececeec cece eee eeeeee ee eeetaeeaees 5 IIL Features and Specifications 00 cece ee ce eee eee nee E TERASE EN ERE ATERN EENEN eee eee eeenieneee es 8 IV External Structure and Pin Defimition 0 cece cee ce intrik ankn RAAR EEEE ON a 9 V Internal Functional Block Diagram ecceccece eee e cece eee ce eens EAEN ENAERE NAARAS ANTENE E RNANA 11 VI Application Solution for PROFIBUS Repeater cece cece cece cee ce eee ene ene en eneeneeeeeee tae nae ea 12 VA RAO csc acdtawsitiasesnniacrda sans adent ts tonsage E AA A A E eave stes 13 VIM Ordering Iitormation sarsi enparan EA cas pevee R EEEE RNE yaar cone eves 16 O Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15
4. FOURSTAR dy com FOURSTAR 3 Functions of the isolator Each interface of PROFIBUS Repeater can be extended into a PROFIBUS segment can be called segment interface Electrical isolation exists between each interface segment which means the segment is isolated from each other Such conditions are necessary for protecting interface interference suppression and improving the network system s stabilization 4 Monitor and diagnose Through the LED indicator on PROFIBUS Repeater one can monitor the working condition of PROFIBUS network and provide references for network diagnostic and troubleshooting FOURSTAR PROFIBUS Repeater has following features 1 Transparent transmission in the physical layer PROFIBUS Repeater adopts bit transparent transmission in the physical layer having nothing to do with the upper layer protocol So it is applicable to all PROFIBUS protocols based on RS485 including PROFIBUS DP V0 V1 V2 and various application rules including PROFIsafe safety Redundancy and Ident Systems identification system etc It is able to connect to multi master station for communication such as S7 FUNCTION Protocol secondary type master station communication it is also applicable to MPI Protocol PPI Protocol RS485 Free Port Protocol and other fieldbus or network such as MODBUS 2 Master station configuration not required It needs no master station configuration and has no GSD File 3 No division of master or s
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6. US Standards regulates that the number of stations can be 126 station address 0 125 can be used in general master slave station No more than 32 stations can appear in one PROFIBUS network segment If more than 32 stations are needed to be connected to PFOFIBUS bus such devices as repeaters or hubs are required to amplify the bus into several segments 4 The communication media for PROFIBUS has to be the special cable that meets the PROFIBUS Standards Siemens Product No 6XV1 830 0EH10 Such cable has the following features as shown in Table 1 1 Table 1 1 Features of Special Cables for PROFIBUS General Features Specification Type Shielded Twisted Pair Cross Section Area of Conductor 24AWG 0 35mm or thicker Cable Capacitance lt 60pf m Characteristic Impedance 100Q 1200 The max length of the communication cable in each PROFIBUS network segment is closely related to the baud rate as shown in the following Table 1 2 The max transmission rate of the whole PROFIBUS network depends on the network segment which has the longest cable Table 1 2 The Max Cable Length of A PROFIBUS Segment under Different Transmission Rate Transmission Rate 9 6K 19 2K 45 45K 93 75K 187 5K 500K 1 5M 3M 6M_ 12M bit s Max Cable Length 1200 1000 400 200 100 Meter 5 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http
7. ards Each segment s max communication distance under each transmission speed meets PROFIBUS Standards Transmission Rate 9 6K 19 2K 45 45K 93 75K 187 5K 500K 1 5M 3M 6M_ 12M bit s Max cable length 1200 1000 400 200 100 m Each R485 interface is integrated with anti lightning SPD with repeatable surge capacity Ipp 100A 10 700us 4K V meet the standard ITU TK20 21 VDE 0433 15KV ESD static Protection Self recovery overcurrent protection RS485 port is able to withstand the sustained overcurrent caused by as high voltage as 60V Each RS4835 interface has its own data reception indication light Working temperature 40 85 C Outline size FS PBHUB 2 93mmx99mmx28mm L W H weight 200g Installation means backboard installation mounting screw 2xM4 ais Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www FOURSTAR dy com FOURSTAR NERF User Manual for FOURSTAR PROFIBUS Repeater IV External Structure and Pin Definition 1 Product appearance Power Power indication terminal light FS PBHUB 2 PROFIBUS MPUPPURS485 twinRepeater 0 12Mbps Rate Automatic adaptive Port 1 signal apd RXD2 Port 2 signal reception light reception light DP socket of port 1 DP socket of port 2 Figure 4 1 Outline Drawing of Repeater FS PBHUB 2 2 Mounting size 2 94 5 8 87 99 Figure 4 2 Mounting Size Drawin
8. ater or hub to break up the longer segment to meet your needs 4 How to achieve PROFIBUS high speed remote communication When PROFIBUS is in high speed communication like higher than 3Mbps the cable cannot be longer than 100 meters The installation of various repeaters or hubs will result in worse signal delay higher cost and power trouble etc The optical fiber is currently of the best performance price ratio for communication for example the optical fiber switch module FS OLM S and FS OLM M produced by Fourstar 15 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www FOURSTAR dy com FOURSTAR VIII Ordering Information Product Name PROFIBUS Repeater Product Model FS PBHUB 2 Announcement This document aims to give instructions for users of PROFIBUS Repeater FS PBHUB 2 and PROFIBUS Hub FS PBHUB 4 and FS PBHUB 6 Since the technique develops rapidly the product s functions change according to the actual items Deyang FOURSTAR Electronic Technology Co Ltd preserves the rights to modify the document before announcement Deyang FOURSTAR Electronic Technology Co Ltd Add 2 F Building H No 88 Section 2 Lushan South Road Deyang City Sichuan Province China TEL 86 838 2515543 2515549 FAX 86 838 2515546 Website http www fourstar dy com 16 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www FOUR
9. e through FS PBHUB 2 VIL FAQ 1 The power of the terminal station in the network segment cannot be cut off Why The head and end of PROFIBUS network segment are called terminals To suppress the reflection and distortion of RS485 the terminal cable has to be connected to A1 B1 of the bus connector and the switch of terminal resistor in the bus connector plug has to be moved to ON as a result of which the terminal a3 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www FOURSTAR dy com FOURSTAR PO Fa User Manual for FOURSTAR PROFIBUS Repeater interface is integrated with a terminal resistor of 220 Q a pull up resistor of 390 Q and a pull down resistor of 390 Q so as to ensure the network s stable operation The pull up and pull down resistor needs 5VDC power supply from foot 6 and foot 5 of DP socket When the power of terminal station is off the pull up and pull down resistor also lose their power supply which will cause network communication error or no communication The diagram below explains the internal schematic diagram of PROFIBUS bus connector plug D SUB Male Connector Switch 0N With terminal li Switch 0FF Without terminal Fig 7 1 Internal functional block diagram of PROFIBUS bus connector plug 2 What is to be done if the terminal stations are inevitably or possibly powered off If by any chance one has to cut the power of terminal stations th
10. ectronic Technology Co Ltd Any individual or organization copied the manual s contents in full or in part without the company s consent in writing will assume the corresponding liability Version Information Document Name A User Manual for FOURSTAR PROFIBUS Repeater Version V2 0 Revision date May 12th 2011 Ba Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www FOURSTAR dy com FOURSTAR Packaging List 1 A FS PBHUB 2 2 A CD ROM include User Manual etc No software or driver is needed for the product I Basic Features of PROFIBUS Network RS485 interface technique is used in the physical layer of Fieldbus PROFIBUS which is the most common way in application It is hard for RS485 Network to maintain rather high reliability and stabilization when the rate of data signaling reaches as high as 12MbpS Hence further strict definition and supplement for RS485 technique are added to PROFIBUS Standards including concepts like network topology segment terminal repeat branch etc Besides detailed technical specifications are given about the used network components such as cables connectors repeaters etc 1 As regulated in PROFIBUS Standards bus network topology is adopted when RS485 is signaled Network components like repeater and connector and concepts like network segment terminal etc are also presented in the Standards As shown in Figure 1 1 when the cable is lo
11. en active terminal resistors with uninterrupted power have to be installed at the segment s terminals as the network segment s terminal to guarantee normal network communication The product No of active terminal resistor from Siemens is 6ES7 972 ODA00 0AA0 The one produced by Fourstar is PB TR485 With the active terminal resistor PROFIBUS network terminal is able to maintain the bus voltage at the standard level Hence for each station in the bus losing the connection will never cause network error Power failure in each segment terminal will affect other segments communication So terminals that may a ae Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www FOURSTAR dy com FOURSTAR DO Fa User Manual for FOURSTAR PROFIBUS Repeater suffer power failure have to integrate with active terminal resistors with uninterrupted power for replacement 4 i PLC PLC FS PBHUB 2 z E u Active terminal resistor PB TR485 RON a ON Rn ON oR OFF Fig 7 2 Active terminal resistor installed at the network terminal 3 How to determine the whole network has reached the max communication speed Using PROFIBUS hub can constitute a complicated network of mixed pattern Each segment has its own length Whether the whole network can reach the max communication speed or not is determined by the longest segment If higher communication speed is required you can use the repe
12. g of Repeater FS PBHUB 2 9 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www FOURSTAR dy com FOURSTAR 3 Power terminal the power port is provided with power reverse electrode protection and surge protection the input voltage is any volts D C between 9V and 40V the power dissipation is about 1 W External power supply is isolated from internal circuit by DC DC isolation module inside the product which makes the product able to get power supply from any device without considering common ground interference ia Q l A D HH l o Chassis ground Wiring diagram of power terminal 4 Indication light the name and function of each emitting diode in the panel Name of the Status of the Light Light constant ON blink flameout PWR hub s power supply hardware failure no power or hardware failure works well RXDI1 hardware failure Port CH1 is receiving data Port CH1 receives no data RXD2 hardware failure Port CH2 is receiving data Port CH2 receives no data 5 Signal definition of PROFIBUS interface DB9F socket The pin signal definitions of each PROFIBUS interface DB9F hole socket of the repeater meet the PROFIBUS Standards Pin No of Signal Name Function Signal Direction DB9F 3 DB RS485 Signal Positive Input output 8 DA RS485 Signal Negative Input output 6 5VDC Supply the terminal resistor Output inside the bus con
13. lave interface no division of input or output interface no division of terminal or non terminal node no matter master station or slave station can be plugged into any PROFIBUS interface and each interface can be either terminal node or non terminal node 4 Self adapting under baud rate 0 12Mbps No switch or software configuration is needed 5 Segment isolation Each segment is isolated from each other 6 The ability to cascade connection Each interface segment can realize cascade connection through PROFIBUS Repeater so as to increase the number of interface segment The quantity of cascade connection is related to the baud rate When the baud rate gt 187 5K the quantity of cascade connection is 3 cascade when the baud rate lt 187 5K the quantity of cascade connection can be 5 cascade to the most zje Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www FOURSTAR dy com FOURSTAR III Features and Specifications Isolation voltage 1000VDC Power isolated from R485 R485 fully isolated from R485 Power 9 40VDC wide voltage not influenced by the voltage fluctuation with power reversed polarity protection and surge protection Power dissipation the power dissipation of FS PBHUB 2 is about 1 W Communication speed automatic adaption without delay under 0 12Mbps PROFIBUS interface DBF9 hole socket pin signal definitions meet the PROFIBUS Stand
14. nector socket with power 5VDC 60mA 5 GND Signal Ground Output 1 2 4 7 9 Not used Not used Not used 10 Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www FOURSTAR dy com FOURSTAR V Internal Functional Block Diagram FG OV 9 40V DC DC DC DC Isolated Isolated Isolated Fig 5 1 Internal functional block diagram of PROFIBUS Repeater ll Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www FOURSTAR dy com FOURSTAR VI Application Solution for PROFIBUS Repeater The usage of FOURSTAR PROFIBUS Repeater is versatile and flexible It can achieve bus network star network tree network and mixed network topological structure Each application solution is followed D E FS PBHUB 2 E ON R ON RON R OFF n Subnetwork 2 bnetwork 1 i Subnel up to 31 stations up to 31 stations Fig 6 1 Working as the repeater to prolong the communication distance and increase the quantity of stations Slave PLC FS PBHUB 2 E Ror Ror nh ON Fig 6 2 Tree branch network topological structure through FS PBHUB 2 Aie Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 2515543 FAX 86 838 2515546 http www FOURSTAR dy com FOURSTAR Drive Slave Slave PLC FS PBHUB 2 on iu FS PBHUB 2 d Fig 6 3 Mixed network topological structur
15. nger than the standard length or stations in the network are more than that regulated in the specifications a repeater is needed to cut the bus into Segment 1 and Segment 2 the head and end of each segment are called terminals Repeater PROFIBUS i slave nia master Station station slave slave i slave slave station station 3 station hb A station J am terminal 5 oo Segment 2 Segment 2 terminal ON terminal ON PROFIBUS connector 4 pp as Segment 1 SLA N Segment 2 m PROFIBUS cable Fig 1 1 PROFIBUS fieldbus adopts bus network topological structure 2 Terminal resistor has to be set at two terminal stations of each PROFIBUS network segment and the Ax Deyang FOURSTAR Electronic Technology Co Ltd TEL 86 838 25 15543 FAX 86 838 25 15546 http www FOURSTAR dy com FOURSTAR POs a User Manual for FOURSTAR PROFIBUS Repeater power is never off at the two stations during network operation if there s no uninterrupted power an active terminal resistor with uninterrupted power has to be installed at the terminal The active terminal resistor produced by Fourstar is Model PB TR485 Set terminal resistor at terminal stations means moving the switch of terminal resistor in the bus connector plug of PROFIBUS to ON while switches in other stations bus connector plugs have to be moved to OFF So it is crucial to determine which station is the segment s terminal 3 Logically PROFIB
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