Model VJET Ethernet/RS-485 Converter
Contents
1. 1 The High speed Response Mode improves the response performance of reference numbers 40001 to 40025 of RS 485 connection devices The Mode can be set to a maximum of eight devices Setting the number of devices using the VJET setting tool applies the Mode to the connection devices for Unit ID 1 to the set number The period to read the process data from RS 485 connection devices cannot be specified The VJET automatically reads the process data at the highest speed corresponding to the number of RS 485 connection devices for which this function High speed Response Mode is used Ifthe function is used for many RS 485 connection devices the process data from each RS 485 connection device stored in the VJET may be delayed to the actual process In this case turn off the function 2 The setting rang for the port number PRT is as follows 502 1024 to 65535 decimal number 01F6 0400 to FFFF hexadecimal number IM 77J01E11 01E 4th Edition Feb 08 2012 00 5 COMMUNICATION OVERVIEW 5 1 Communication Specifications Ethernet Specifications Interface Conforms to IEEE802 3 10BASE T 100BASE TX Port number for Modbus TCP protocol 502 Host devices PC etc Application layer MODBUS TCP Transport layer TCP Network layer IP Data link layer Ethernet Physical layer 10BASE T 100BASE TX Access control CSMA CD Transfer rate 10 Mbps 100 Mbps Maximum 100 m the leng2. Power Supply and Isolation Power Supply 24 V DC or 100 240 V AC DC 50 60 Hz Rated Voltage Power Supply 24 V DC 10 or 100 240 V AC DC Input Voltage 15 10 50 60 Hz Power 1 8 W at 24 V DC 1 5 W at 110 VDC consumption 2 6 VA at 100 V AC 4 0 VA at 200 V AC Insulation 100 MQ minimum at 500 V DC between resistance Ethernet RS 485 power supply and grounding terminals mutually Withstanding voltage 1000 V AC for one minute between Ethernet and RS 485 terminals mutually 2000 V AC for one minute between Ethernet RS 485 power supply and grounding terminals mutually 3 EXTERNAL WIRING WARNING Be sure to turn OFF the power supply before wiring to avoid the risk of electric shock Use a tester or similar device to ensure that no power is being supplied to a cable to be connected Wiring should be connected to the terminals on the socket of the product The terminals for external connections are of M3 screws Use crimp on terminal lugs for connections to the terminals Recommended cables A nominal cross sectional area of 0 5 mm or thicker for signal cables and that of 1 25 mm or thicker for power cables Wiring Diagram Terminator oE Power suppl z RS 485 PPly _ communication il L B Baga AT i
3. a GND_ 8 com Z NOO WY VJ series VJ series VJET Signal Conditioner Signal Conditioner B B B ws 5 Al Terminating 5 Terminating resister resister 220 Q 220 Q COM FN COM COM SG SG SG Class D grounding grounding resistance of 100 Q or less A NOTE e Do not connect anything to the terminals that are not used in the wiring diagram Otherwise it may cause the malfunction or damage e The power line and input output signal lines should be installed away from noise generating sources Otherwise accuracy cannot be guaranteed e Adhere strictly to the specifications to avoid overheating or damage Before turning on the power ensure the following e Power supply voltage and input signal value applied to the product should meet the required specifications e The external wiring to the terminals and wiring to ground are as specifications e Do not operate the product in the presence of flammable or explosive gases or vapors e This product is sensitive to static electricity exercise care in handling Before you operate the product touch a nearby metal part to discharge static electricity e The grounding resistance must be 100 Q or less JIS Class D grounding The length and thickness of the grounding cable should be as short and thick as possible Directly connect the lead from the ground terminal terminal no 8 of the product to the ground Do not carry out daisychained
4. inter ground terminal wiring Connet the VJET to the host device using either 1OBASE T or 100BASE TX The VJET detects 10BASE T or 100BASE TX automatically 10BASE T 100BASE TX are 10 Mbps 100 Mbps Ethernet standard using twisted pair cables In 10BASE T 100BASE TX networks personal computers and other host devices are connected in a star pattern through a hub Devices that can be connected to Ethernet PC Touch panel Ethernet QA 10BASE T 100BASE TX Link LED The VJET has Link LED lower side and Activity LED upper side on the connector part of the front These LEDs turn on in green or amber see the External Dimensions Link LED Lower side Activity LED Upper side Color Meaning Color Meaning off No Link off No Activity Amber 10 Mbps Amber Half Duplex Green 100 Mbps Green Full Duplex IM 77J01E11 01E 4th Edition Feb 08 2012 00 4 SETTING PARAMETERS Operating Windows XP Home Edition Professional 32 system bit version Windows Vista Business with Service Pack 1 32 bit version Windows 7 Professional 32 bit 64 bit versions Recommended 300 MHz pentium processor or superior is CPUs recommended 3 0 GHz or higher in Windows Vista Business Windows 7 Professional Recommended 128 MB minimum for Windows XP Home Main Memory Edition Professional Windows Vista Business Windows 7 Professional 2 GB or more Me
5. 00 C Input value 680 2 C 1234 0000 000B 01 03 08 1A92 0001 02A8 0003 f LILLI D0005 register data Unit 3 C D004 register data Input value 02A8h 680 68 0 D0003 register data Number of digits below decimal pont 1 D0002 register data Input value 1A92h 6802 680 2 Data amount bytes 8 bytes Function code 03 Read data from multiple registers RS 485 connection device address Address 1 The number of send data bytes after RS 485 connection device address 000Bh 11 bytes Protocol ID 0000 fixed Transaction ID The value when sending 1234 command Cut TCP connection Winsock1 Close End Sub TATTLE IM 77J01E11 01E 4th Edition Feb 08 2012 00 7 TROUBLESHOOTING If the devices can not communicate each other perform the following checks Oo Oo Oo o T All devices related to the communication are turned on The wiring is correct The VJ series with Output 2 other than communication is not connected The number of connected devices and connecting distance are within the use range The communication conditions of RS 485 connection device are as follows o Protocol Modbus RTU o Baud rate 9600 bps o Data length 8 bits o Stop bit 1 bit The Unit ID specified for sending by a host device and the Unit ID of the connected RS 485 connection device are consistent The parity is consistent between V
6. IN Rail Mounting Insert a DIN rail into the upper part of the DIN rail groove on the rear of the socket and then slide the slide lock at the lower part of the socket upwards until the socket is fixed into position as shown below Fit into here DIN rail DIN rail Slide lock 1 3 Mounting Using a Multi mounting Base When using a multi mounting base see the User s Manual for VJCE 01A VJ Mounting Base for communication IM 77J01C51 11E 1 4 Using a Duct When using a wiring duct install the duct at leaset 30 mm away from the top and bottom faces of the main unit 2 INSTALLATION LOCATION Avoid the following environments for installation locations Areas with vibration corrosive gases dust water oil solvents direct sunlight radiation a strong electric field and or a strong magnetic field altitude of more than 2000m above sea level If there is any risk of a surge being induced into the power line and or signal lines due to lightning or other factors a dedicated lightning arrester should be used as protection for both this converter and a field installed device Environmental Conditions Operating 0 to 50 C temperature range Operating humidity 5 to 90 RH no condensation range Ambient Condition Avoid installation in such environments as corrosive gas like sulfide hydrogen dust sea breeze and direct sunlight Installation altitude 2000m or less above sea level
7. JET and RS 485 connection device The same Unit ID is not set for the devices connected to the same communication line The port number is correct RADEMARKS Windows XP Windows Vista and Windows 7 are trademarks of Microsoft Corporation U S A Pentium is a registered trademark of Intel Corporation USA Ethernet is registered trademark of XEROX corporation Other proper nouns such as trade names and company names are trademarks of their respective companies IM 77J01E11 01E 4th Edition Feb 08 2012 00
8. Model VJET JUXTA a Ethernet RS 485 Converter Thank you for purchasing the JUXTA Signal Conditioner Please read through this manual before use for correct handling ath Edition Feb 2012 YK YOKOGAWA Yokogawa Electric Corporatio CAUTIONARY NOTES FOR SAFE USE OF THE PRODUCT This User s Manual should be carefully read before installing and operating the product Please keep this User s Manual for future reference The following symbol is used on the product and in this manual to ensure safe usage gt D This symbol is displayed on the product when it is necessary to refer to the User s Manual for information on personal and instrument safety This symbol is displayed in the User s Manual to indicate precautions to avoid danger to the operator such as an electric shock The following symbols are used only in this manual NOTE Draws attention to essential information for understanding the operations and or functions of the product gt CHECKING PRODUCT SPECIFICATIONS AND PACKAGE 1 Checking the Model and Product Specifications Check that the model and specifications indicated on the nameplate attached to the main unit are as ordered 2 Packaged Items Check that the package contains the following items WVJET 1 Tag number label 1 e Terminator 1 When option code R220 is specified e User s Manual this manual 1 GENERAL The VJET is a compact plug in type communication c
9. iable declaration Option Explicit Dim strSendData As String Sending data Dim strReceive As String Received data Dim binChrs 11 As Byte Store binary data Dim i As Integer Variable declaration Private Sub cmdSend Procedure to connect to VJET by TCP IP create command and send the command Variable declaration Dim sChr2 As String Dim varChrs As String Set properties of Winsock control Winsock1 Protocol sckTCPProtocol connection Winsock1 RemoteHost 192 168 1 101 Set IP address of VJET Winsock1 RemotePort 502 Set a port of VJET 502 default Set protocol used for TCP Request TCP connection of VJET Request TCP connection Wait for the Winsock1 Connect Do Until Winsock1 State sckConnected comletion of connection i DoEvents Loop Create sending data Create command to read input value data and D register addresses from D0002 to D0005 of VJU7 Address 01 connected to RS 485 of VJET D0002 Input value engineering unit D0003 Number of digits below decimal popint D0004 Input value ratio of input to span D0005 Unit of input value engineering unit strSendData 123400000006010300010004 Sending command character string Explanation of command character string 1234 0000 0006 01 03 0001 0004 I Number of D register 4 D register start number D0002 Funcion code 03 Read data from
10. ire information from the internal registers D registers of RS 485 connection devices Code Number Function 03 Reads data from multiple registers 06 Writes data to registers 08 Loop back test 16 Writes data to multiple registers For details refer to the Communication Functions user s manual of each RS 485 connection device IM77J01E11 01E 4th Edition Feb 08 2012 00 6 EXAMPLE OF COMMUNICATION PROGRAM This chapter shows a sample program to read write data operating by Microsoft Visual Basic 6 0 The program shown here is for your reference when you create a program All operation is not guaranteed TATE Example of VJET Communication Procedure by Microsoft Visual Basic 6 0 Procedure to read the input value of VJU7 Address 01 via VJET from LAN port of a PC Connect and send command by Connect SendData of Winsock control and receice data by DataArrival event Procedure to connect to VJET by TCP IP create command and send the command PC Ethernet VJET IP Adr 192 168 1 101 VJU7 Address 01 RS485BUS VJU7JAddress 02 The following procedure is described using the real numbers and real character strings for explanation Check error processing and retry processing in normal conditions are omitted The program does not operate only by this procedure Please make it the refernce at the time of actual application creation TATTLE Var
11. mory space required to store the tool s programs 10 MB minimum Memory space required to store the parameter data 2 MB minimum 800 x 600 pixels or superior Smaller fonts should be used Should be capable of handing at least 256 colors Network 10BASE T 100BASE TX required for Ethernet communication 4 2 Installation akieclieciaceyal Ay NOTE J Before installing the tool quit all running applications e When using Windows XP e Log on using the user name of Administrators group e The program dose not start normally if the user name not belonging to the Administrators group is used for logging on Hard disk CRT display 1 Start Windows 2 Download the VJET setting tool from the following URL http Awww yokogawa com ns cis field ns vjet_01 htm Note The setting tool of old version may not be able to set the VJET settings Download the newest version of the setting tool from the URL above to use it 3 Please extract a compressed file and perform SETUP EXE 4 To continue follow the instructions appearing on screen After the installation is completed the VJET setting tool is added to the Programs submenu of the Start menu of Windows 4 3 VJET Setting Tool Basics 1 Set the network settings of the personal computer For initial setup connecting a VJET and a PC using cross cable is recommended Ask the system administrator for the settings and contents 2 From the Start menu of Windows point to the Programs
12. multiple registers RS 485 connection device address Address 1 The number of sending data bytes after RS 485 connection device address 6 bytes en eo Protocol ID 0000 fixed e Transaaction ID 1234 Arbitrary value of 2 bytes varChrs StrConv strSendData vbFromUnicode To change sending command character string into binary data For i 1 To 12 Change every two character strings into Unicode and arrange them to store in binDhrs sChr2 MidB varChrs 2 i 1 2 binChrs i 1 CByte amp H amp StrConv sChr2 vbUnicode Next i Send sending command binChrs to VJET Winsock1 SendData binChrs Private Sub Winsock1_DataArrival ByVal bytesTotal As Long Receive data from VJET DataArrival of Winsock and cut connection with VJET Variable declaration Dim strData As Byte Dim strHexl As String Dim strReceive As String Dim varReceive As String Receive data from VJET Winsockl GetData strData Get received data of Winsock1 control into strData Change received binary data strings to character strings For i 0 To bytesTotal 1 varReceive varReceive amp ChrB strData i Next i For i 1 To LenB varReceive strHexl Right 0 amp Hex AscB MidB varReceive i 1 2 strReceive strReceive amp strHexl Next i Received data character string are stored in strReceive Example of received characters strReceive from VJU7 Instrument range 0 to 10
13. odbus TCP protocol The number of bytes from the Unit ID byte number 6 byte on Unit ID of RS 485 connection device 5 3 2 PDU Structure The PDU Simple Protocol Data Unit consists of the following n bytes Byte No Description Function code Data 0 1 to n 1 Function code The command specified from the host Data length 8 bit 5 2 TCP IP Communication Modbus TCP exchanges data with the protocol shown in the figure below using a TCP IP socket interface RS 485 connection devices Signal Conditioners First startup First startup JUXTA series Controllers GREEN series socket socket UT100 series Power Monitors POWERCERT series bind Vv listen Open connection connect mumm accept m E ARLTGiae 7 Command ee send gt recv 4 Response l recv oo send 4 Terminate connection 4 close gt close NOTE than 60 seconds after establishing a connection the VJET will automatically terminate the connection If no request is received from the host device for more device Data Depending on the function code D register addresses the number of individual D registers or parameter values are specified in this position 5 4 List of Function Codes The codes in the following list are command words host devices use to acqu
14. onverter It can be connected to the host devices with Ethernet by Modbus TCP protocol and to the instruments with RS 485 by Modbus RTU protocol MODEL AND SUFFIX CODES E _ _ _ Style S2 Model Suffix codes Description o 110 0 0 n Ethernet RS 485 Converter Always 01 Powersupply 3 24 V DC 10 6 100 240 V AC DC Always 1000 Blank With socket Option ISN ___ Without socket R220 Attachment of a terminator 220 Q Operating range 85 to 264V AC DC Yokogawa Electric Corporation Network Solutions Business Division 2 9 32 Naka cho Musashino shi Tokyo 180 8750 Japan Phone 81 422 52 7179 Facsimile 81 422 52 6973 1 MOUNTING METHOD VON NOTE e Insert pull out the main unit into from the socket vertically to the face of socket Otherwise the terminals are bent and it may cause a bad contact e When using the VJET for side by side multiple mounting mount the VJET in either the left or right end of the mounted instruments 1 1 Wall Mounting Wall Mounting Loosen the main unit fixing screw of the product and pull out the main unit from the socket Fix the socket on the wall with screws Next insert the main unit into the socket and fasten the main unit with the main unit fixing screw Mounting screws Mounting Dimensions Unit mm 29 5 or more Threaded hole for fixing the main unit Main unit fixing screw 1 2 D
15. submenu then VJET Setting Tool and click VJET Setting Tool 3 The VJET Setting Tool then starts and the dialog box below appears VJET Settine Tool File Too Help H 4 The connected VJET is displayed If the VJET is connected after starting the tool click Tool on the Menu bar and then choose Research 5 Choose the VJET of which the setting are to be changed from the displayed VJET If multiple VJET are displayed identify them by Mac address Mac address The seal showing the 12 digit alphanumeric character is attached to the sideface of the VJET main unit 6 From the Tool click Upload from VJET The dialog box below appears VJET Setting Tool HSR High Speed Responce Mode Setting PRI Parity Cancel IP IP Address SM Subnet Mask DG Default Gateway PAT Port No Present Port No Set HSR High Speed Responce Mode 0 8 DefautO 7 Change the settings for High speed response mode Parity IP address Subnet mask Default gateway and port number 2 and then click OK The settings are changed and the first dialog box appears It takes about 10 seconds to change the settings 8 The change of settings is completed if the changed settings are displayed in the first dialog box Factory set defaults High speed response mode 0 OFF 1 Parity 1 Even IP address 192 168 1 1 Subnet mask 255 255 255 0 Default gateway 0 0 0 0 Port number 502
16. th between Hub and converter segment length Maximum Up to 4 cascade connections per hub connecting 10BASE T up to 2 cascade connections per configuration hub 100BASE TX Communication High speed response mode parity IP address parameter subnet mask default gateway and port number settings via Ethernet using the dedicated tool RS 485 Specifications Interface Conform to EIA RS 485 Protocol Modbus RTU Transfer system Half duplex communication Synchronous Start stop synchronization system Transfer rate 9600 bps Parity Even odd or none Stop bit 1 bit 5 3 Network Frame Structure The Modbus TCP frame structure is as follows Modbus TCP IP ADU a MBAP Header Function codes Data PDU MBAP Header Modbus Application Protocol Header Header used to identify the the Modbus TCP protocol PDU Simple Protocol Data Unit Body of the data communication 5 3 1 MBAP Header Structure The MBAP Header Modbus Application Header consists of the following seven bytes Byte No 0 Description Transaction 1 2 3 4 5 6 Protocol Number of Unit ID ID bytes ID Transaction ID Protocol ID Number of bytes Unit ID The host device specifies an arbitrary value to identify a trasaction The VJET returns the value it received from the host device as its response This parameter is set to 0 to indicate the M
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