Omega Engineering OMR-6510 Marine Battery User Manual
Contents
1. Contents i 1 1 1 2 Introduction What is OMR OMR is a series of data acquisition modules It provides a total solution of the data acquisition network and control system You can remotely control up to 256 OMR modules on RS 485 network All you need is to use a host computer like a PC Personal Computer with one RS 232 serial port for controlling the whole system The maximum communication distance is 4000 feet from the host computer OMR is based on the RS 485 multi drop network system each module has a unique address ID Using simple ASCII command amp response protocol through standard RS 485 interface can control all the OMR modules in the RS 485 network The OMR modules provide direct linkage to a wide variety of sensors and perform all signal conditioning scaling linearization and conversion The modules can be used to measure temperature pressure flow voltage current and numerous types of digital signals Outstanding Features of OMR e Industry standard networking All OMR modules use the RS 485 communication protocol for transmitting and receiving at high rates and over long distance e Two wire and multi drop communication A single twisted pair of wires is used to transmit and receive data between modules Multi drop capability makes system configuration more flexible and easy set up of a network e Hightransfer speed OMR modules provide up to 115 2K bps data command transfer rate It can promote system ban2. module remove incoming power before checking connections Using the LED Indication The LED provides status information on Modules operation The troubleshooting about shows LED indicator It also shows how to use the LED to detect and correct common operating problems What it Means What to do 1 Module is not receiving input 1 Check module wiring cable power by loosing wiring connections and cable connections on terminal block ON RED 1 Normal receiving state 1 No action required Flashing 1 Normal transmitting state 1 No action required Other Malfunctions What it Means What to do 1 Loose wiring 1 Check wiring and cable 2 Incorrect DIP switch setting connection 2 Check Baudrate and data packet setting of the DIP switch Troubleshooting and Maintenance 6 1
3. 1 Initialize a Brand New OMR Objective of Initializing a Brand New OMR All OMR modules except OMR 6520 and OMR 6510 in a RS 485 network must have an unique address ID however every brand new OMR has a factory default setting as following e Baud rate is 9600 bps e Address ID is 01 e Checksum is disable e Host watchdog timer is disable Therefore to configure the brand new OMR before using is necessary otherwise the address ID will conflict with others The baud rate may also be changed according to user s requirements The following initialization procedures are need not only for a brand new module but also for a installed OMR module When the user want to change the setting the initialization procedure can also be used Initial State The OMR I O modules must be set a Initial State when you want to change the default settings of the modules such as the ID address baud rate check sum status etc All OMR I O modules have an special pin labeled as Default The module will be set as Initial State it the Default pin is shorted to ground Under this state the default configuration is set as following e Address ID is 00 e Baud rate is 9600 bps e Checksum is disable e Host watchdog timer is disable Initialization Equipments Host computer with an RS 232 port An installed RS 485 module OMR 6520 with 9600 baud rate The brand new OMR module DC Power supply 10 to 30 Vpc for OMR modules A OMR 65
4. 10 if the connection distance is more than 4000 ft Initialization Procedure A As Baud rate is 9600 bps and check sum is disable 1 A 2 P Power off the host computer and the installed OMR 6520 Be suring the baud rate of the OMR 6520 is 9600 bps Connect a brand new OMR module with the RS 485 Refer to Figure 4 1 for detail wiring Power on the host computer Power on the power supply for OMR modules Use the OMR Administrating utility to configure the address ID Baud rate and check sum status of the module Initialization Procedure B As Baud rate is not 9600 bps or check sum is not disable Ol EA IV Power off the host computer and the installed OMR 6520 Connect a brand new OMR module with the RS 485 Refer to Figure 4 1 for detail wiring Configure the OMR 6520 to Baud rate 9600 bps Short the DEFAULT pin of the brand new module Power on the host computer Install a Brand New OMR 4 1 D Power on the power supply for OMR modules 7 Use the OMR Administrating utility to configure the address ID Baud rate and check sum status of the module 8 Power of the local power supply 9 Disconnect the DEFAULT pin 10 Configure the OMR 6520 to desired Baud rate 11 Power on the local power supply 12 Use OMR Administration utility to check the module s new setting 4 2 Install a Brand New OMR Initialization Wiring 4 2 OMR 6520 New Host N RS 232 RS 485 si module Computer Converter Loc
5. 2 RS 485 serial port for the host computer A standard 9 pin D type connector is used to connect the host computer and the OMR 6520 Hence the OMR 6520 can connect with all kinds the PC IPC or Notebook PC which install a standard RS 232 interface Features of OMR 6520 RS 422 RS 485 transceiver Differential 2 wire half duplex RS 485 Easily setup and installation Auto direction flow control Maximum 128 OMR on a bus without using repeaters Maximum 256 addressable OMR modules High transfer speed High isolation voltage Lower power consumption OMR 6520 2 1 Specifications of OMR 6520 lt Input e interface standard RS 232 9 pin female D type connector e Speed bps 1200 115 2K 2400 4800 9600 19 2K 38 4K RTS e Data Format 9 bits 10 bits 11 bits or 12 bits lt Output o Interface RS 485 differential 2 half duplex wires RS 422 differential 4 full duplex wires e Speed bps 1200 115 2K 2400 4800 9600 19 2K 38 4K RTS e Max RS 485 network bus distance 4000 ft 1200m lt Isolation e Isolation voltage 5000 Vrms between RS 422 RS 485 network and host computer amp Bus e Max loading 128 OMRs on a RS 485 network e Max modules 256 OMRs with one OMR 6510 repeater lt Power e Power Supply 10V to 30V e Power Consumption 0 95 W Note 1 115 2K is supported by version A1 2 or later 2 2 OMR 6520 A Look at OMR 6520 amp Pin Assignment RS 232 to RS 485 OMR 6520 RS 422
6. Converter OMR 6520 2 3 Pin Definitions V 0 J O 0 S N Signal Name Y DATA G DATA R VS B GND RS 232 IN Description RS 485 transmission line positive RS 485 transmission line negative RS 422 transmission line positive RS 422 transmission line negative RS 422 receiving line positive RS 422 receiving line negative OMR power supply 10V 30V OMR ground 9 pin RS 232 connector Connection Between Host and OMR 6520 2 4 OMR 6520 OMR 6520 RS 232 RTS GND TXD RXD OMR 6520 RS 232 RS 485 Converter Functional Block Diagram 5V Power Regulator 4 Isolation 5V amp Filter Isolation GND Power Input GND DC to DC 10V 30V Converter RS 422 RS 485 RS 232 Receiver Driver Communication Switching Controller Receiver Driver Opto Isolation data Direction Control TVS Transient Voltage Suppresser PTC Positive Temperature Coefficient OMR 6520 2 5 2 2 Setup Objective of Setup In normal condition it is not necessary to setup the OMR 6520 The default configuration of this communication module is 9600 bps and data format of 8 data bits with 1 start bit 1 stop bit and no parity check Note that the data format is reserved to be compatible with other brand s communication port it should not be modified if only OMR is used in a system The baud rate can be configured according applications requirement Setup Equipments Only screwd
7. D 6011D Address 9 09H Input Range T C Type J Step 1 Apply power to the analog input module and let it warm up for about 30 minutes T lt Back Next gt Mi Analog Input Calibration Module ND 6011D Address 9 09H Input Range T C Type J Step 2 Assure that the module ts corectly installed and the input range shown above ts what you want to calibrate Offset Span CIC Exit 5 3 4 Save and Print OMR modules information File Save Save all exist OMR modules information as display as in the listoox in the current RS 485 network File Print Print the OMR module information in the listbox File Exit Quit the OMR Administration Utility 5 6 Software Utility Ig NuDAM Adu on Utility for Wir File Network Operation About Model HMEEMIt Lowlimit Format Alarm Remark 6058 Digital 1 0 5 3 5 Version Information Help About Version information ta NuDAM Administration Utility for Windows File Network Operation About Address Model Highlimit LowLimit Format Alarm Remark 1081H 6658 Digital 1 0 o About MUDAM Administration Utility O x MuDAM Administration Utility for Windows 95 NT Version 3 2 Copyright C 1996 1999 ADLink Technology Inc Software Utility 5 7 5 8 Software Utility 6 Troubleshooting and Maintenance Preventive Maintain e Periodic check for loose connection ATTENTION To avoid electircal shock or unintended operation of the
8. M 3581 for OMR 6520 RS 232 to RS 422 RS 485 Converter OMR 6510 RS 422 RS 485 Repeater User s Guide OMEGA ENGINEERING INC 1 Contents INTRODUCTION wissesssissscancctestsestasasscsdatesvexeusessasesasia axtetdosacsieioestessostereussuvaisois 1 1 1 1 WHATISOMR Jasna msi pert Ree n sta NE 1 1 J 2 OUTSTANDING FEATURES OF OMR se 1 1 1 3 OMR 6000 SERIES PRODUCTS OVERVIEW ooommom nana 1 3 1 4 EIA RS 4559 PANDAR Dn miian R3 1 3 1 5 TRS 2255 ON INI 1 4 1 6 OMR RS 485 NETWORK CONFIGURATIONS ss 1 4 1 7 CONSTRUCTING A OMR NETWORK a aa naene 1 5 1 8 TERMINATION BUS ana mad han 1 6 1 9 SEE DIN Ge SBN Be na 1 6 1 10 HOW TO CALCULATE CHECKSUM VALUE 1 7 OMR 6S 20 toes vissnscaleases alat 2 1 2 1 COVER VIEW Geber bet mn kesti kookos seisi ite 2 1 22 S Bid Bh Ca one ae 2 6 2 3 INSTALLATION see A kstoiam n 2 7 2 4 PROGRAMMING den Sesser coded a a BBB 2 8 OMR65 3 1 3 1 NERO 3 1 J2 ETOP e SISSIN S KIIA e Oe 3 5 3 3 INSTALLATION 3 6 3 4 PROGRAMMING pasren aa naa UNNES osana 3 7 INSTALL A BRAND NEW OMR cccccsscsscsceccsccscceccsccsecsesscssessessecseeee 4 1 4 1 INITIALIZE A BRAND NEW OMR ee 4 4 2 INSTALL A NEW OMR TO A EXISTING NETWORK oooo 4 3 SOFTWARE UTIBEEY inn mna ass 5 1 Sl SOFTWARE INSTALLATION vena kam masi 5 1 5 2 HOW TO EXECUTE THE OMR ADMINISTRATION sono 5 1 5 3 OMR ADMINISTRATION FUNCTION OVERVIEW ss 5 2 TROUBLESHOOTING AND MAINTENANCE ocoooooroocooooo 6 1
9. MI e TTI Software Utility Software is not necessary for this module Eguipments for Installation A host computer with RS 232 port RS 232 cable DB 9 female DC Power supply 10V 30V NDP 243u is recommended Wires shielded and grounded is recommended Installation Procedure Make sure the host computer is power off Use RS 232 cable to connect OMR 6520 with host computer Wire the power supply to OMR Note that the power supply should meet the specification Wire other OMRs UT Application Wiring The Figure 2 1 shows the application wiring of OMR 6520 OMR 6520 OMR module Host RS 232 RS 485 N Computer Converter Local Power Supply 10 V to 30 V VS GND OMR 6520 2 7 Figure 2 1 Application wiring of OMR 6520 2 4 Programming The OMR 6520 is a communication module it is not necessary to be programmed 2 8 OMR 6520 3 OMR 6510 3 1 Overview What is OMF 6510 The OMR 6510 is the RS 422 RS 485 signal repeater which is used to extend or to lengthen the network distance A OMR bus can connect up to 128 modules The repeater should be used when the numbers of the modules excess 128 In addition the repeater should also be used when the length of a signal bus is more than 4000 feet Features of OMR 6510 RS 422 RS 485 signal transceiver amp repeater Bi directions signal transmission for both RS 422 RS 485 ports Automatic transmission direction control Easily setup and installation Ma
10. al Power Supply 10 V to 30 V Vs GND Figure 4 1 Layout for Configuring the OMR module Install a New OMR to a Existing Network Equipments for Install a New Module e A existing OMR network e New OMR modules e DC Power supply 10 to 30 Vpc Installing Procedure 1 Configure the new OMR module according the initialization procedure in section 4 1 2 Thebaudrate and check sum status must be identity with the existing RS 485 network The address ID must not be conflict with other OMR modules Power off the OMR local power supply of the existing RS 485 network Power off the host computer Add the new module to the existing RS 485 network Power on the host computer Power on the OMR local power supply Use the OMR administration utility to check entire network OSIN Install a Brand New OMR 4 3 5 Software Utility 5 1 Software Installation 1 Insert ADLink All in one CD into your CDROM driver 2 Move cursor on OMR and click 3 Move cursor on OMR 6000 Admin Utility and click 4 Select the driver you want to install and follow the setup instructions on screen 5 2 How to Execute the OMR Administration What environment you needed 1 At least one RS 232 communication port 2 Microsoft Windows version 3 1 95 98 NT 3 At least 2MB Hard Drive Space 4 A VGA monitor optional 5 Mouse optional Execute the OMR Administration Utility e Run OMR Administration Utility Icon Software Uti
11. arefully Note that do not scratch the surface of the circuit while setting up otherwise the surface coating or even the circuits will be damaged Default Setting e 9600 Baudrate e 10 bits serial data format one start bit eight data bits one stop bit no parity check SW1 Setting SW1 Default Setting 9600 bps waa OFF 1 2 312 3 a 5 6 BaudRate ON OFF OFF OFF OFF OFF 1200 or 115 2k bps OFF ON OFF OFF OFF OFF 2400bps OFF OFF OFF ON 38400 bps Note 1 115 2kbps is supported by version A1 2 or later SW2 Setting OMR 6510 3 5 SW2 Default Setting Start Bits 1 Data Bits 8 Stop Bits 1 Parity None 3 3 Installation Software Utility software is not necessary Equipments for Installation A 2 wire RS 485 network or 4 wire RS 422 network DC Power supply 10V 30V Wires Installation Procedure 1 Make sure the original RS 422 RS 485 network is power off 2 Wire the power supply to OMR 6510 Note that the power supply should meet the specification 3 Wire other OMRs to the extend RS 485 bus 3 6 OMR 6510 Application Wiring OMR module OMR 6510 Repeater DATA DATA DATA DATA OMR module Vs GND Local Power Supply 10 V to 30 V Vs GND Figure 3 1 OMR 6510 wiring 3 4 Programming The OMR 6510 is a communication module it is not necessary to be programmed OMR 6510 3 7 4 Install a Brand New OMR 4
12. creased interference a shielded bus cables is recommended to use for wiring between module and modules In addition a shielding also should be done for the cable of power supply and for the signal cables Some experiences and recommendations are concerning for shield connection 1 The shield should be connected with protective earthing at each bus connection 2 The shield should be applied additionally several times along the course of the cable 3 The Computer should be applied the shield directly to the appliance or to separate shield rails EarthingPoint Isolation NOS OMR Module 1 6 Introduction 1 10 How to Calculate Checksum Value Format of OMR Commands When checksum is enable then Checksum is needed it is 2 character Checksum LeadingCode Addr Command Data MOD 0x100 Example 1 checksum is disable User Command 012 lt CR gt Response 101400600 Example 2 checksum is enable User Command 012B7 lt CR gt Response 101400600AC 0x24 0 0x30 T 0x31 2 0x30 B7 0x24 0x30 0x31 0x32 MOD 0x100 T 0x24 0 0x30 T 0x31 4 0x34 6 0x36 AC 0x24 0x30 0x31 0x34 0x30 0x30 0x36 0x30 0x30 MOD 0x100 Introduction 1 7 2 OMR 6520 2 1 Overview What is OMF 6520 OMR 6520 is a RS 232 to RS 422 RS 485 converter it converts the RS 232 signal to the RS 422 RS 485 signals The OMR 6520 can be considered as an extension RS 42
13. dwidth e Simple command response protocol All communications are performed with printable ASCII characters This allows the information to be processed with string functions common to the most high level languages e Industrial design The screw terminal plug connectors on every OMR module ensure simple installation and easy modification The compact size allows the modules to be mounted on DIN rail back panel wall mount etc e Watch dog supervisory OMR contains a watch dog supervisory circuitry that will automatically reset the module when the system fails In addition a user programmable software timer provides a safe output signal in the event of host computer failure e High isolation voltage OMR provides photo isolators which ensure high isolation voltage between the data acquisition circuits and the communication port The fatal electric shock won t go through and damage all the modules on the network e Noise immunity The OMR provide extra noise immunity capability An electrode which is coated inside the ABS case can reduce electro magnetic interference EMI and noise e Harsh environmental protection Introduction 1 1 A surface coating covers on the PCB and electronic components of the OMR It allows superior resistance to harsh environment such as humidity salt sory and most harsh chemicals 1 2 Introduction 1 3 OMR 6000 series products overview The OMR 6000 series provides the complete sets of data acq
14. g Monitor all the module s function on the network Diagnostic module s function Some A D modules need do calibration Select Model Number o NuDAM Administration Utility for Windows File Network Operation About a EI Terminal A et Configuration Monitor Calibration Model Number Term ICON for Operation Terminal You can remote control all moudles by directly using command mode or testing your from this Terminal Software Utility 5 3 Mi Terminal Emulation gt COMPORT COH gt BAUD RATE 9600 Exit Address Model HighLimt LowLimit COM Port COM Baud Rate 9600 Data Bits 8 Stop Bits 1 Parity Hone CheckSum Enable Batch File D ANudamiNud Log to file mes Log File D Nudam Nud fi Repeat Command Pi Repeat Stop io flop Operation Run Batch Run batch command file in BATCH CMD user can edit this text file Operation Step Batch Run the batch command step by step Operation Display Batch Display content of BATCH CMD Operation Repeat Repeat one command n times Diag ICON for Operation Diagnostic This dialog is different by different fuction modules 5 4 Software Utility Py E iita IM Module D iasnostit Software Utility 5 5 Cal ICON for Operation Calibration This dialog is different by different fuction modules is Analog Input Calibration Module N
15. he current limiter and the thermal shutdown circuitry inside the OMR OMR RS 485 Network Configurations OMR 6000 series is designed under RS 485 multi drop network architecture Up to 256 OMR modules can be controlled in a multi drop network The limit of 256 is due to command code The network can be connected by simple topology Figure 1 1 or branch topology Figure 1 2 or free topology Figure 1 3 The OMR 6520 and OMR 6510 are the two basic communication modules to construct a RS 485 network The OMR 6520 is a RS 232 to RS 485 RS 422 converter The OMR 6520 is used to build a RS 485 port for the host computer by converting standard RS 232 signal into RS 485 signal The OMR 6510 is the RS 485 signal repeater which is used to extend or to lengthen the network distance An OMR bus can connect up to 256 modules each segment is up to 128 modules Whenever the numbers of the modules excess 128 the repeater should be used In addition the length of a standard RS 485 bus is up to 4000 feet the repeater should be used whenever the length of a signal bus is more than 4000 feet OMR 6520 RS 232 to RS 485 RS 422 Converter Terminator aan RS N 4 8 5 b u S RS 232 OMR Modules TT EE PA E PINTA t EAAS t Figure 1 1 Simple Topology 1 4 Introduction OMR 6520 RS 232 to RS 485 RS 422 Converter md RS 485 bus RS 232 v lt OMR 651 RS 485 bus 0 E E ennemin Terminator OMR Modules A A Figure 1 2 Branch T
16. lity 5 1 5 3 OMR Administration Function Overview Default RS 232 Communication Port Setting e Communication Port COM2 e Baud Rate 9600 e Data Bits 8 e Stop Bits 1 e Parity None 5 3 1 Change RS 232 Communication Port Setting Choose Network ComPort to change setting m HDM Adminstration Utility for Windows File Network Operation About Hodel HighLi COM Pot Panty 1001H 6058 4 C COMI None COM2 C Ddd C COM3 Even Baud Rate s600 Data Bits 8 Stop Bits i 7 Cancel 5 3 2 Search all exist OMR modules Choose Network Search to search all exist OMR modules in the current RS 485 network k MuDAM Administration Utility for Windows File Network Operation About Ari Model Highlimi maal Ami pasm An nam Remark 1 61H 6958 Digital 1 0 Search all exist NuDAM modules in network if you just want to do new module initialization select Cancel button to skip it COM Port COM Baud Rate 9600 Search address range from 0 to 255 Cancel You can change search addresses range from here 5 2 Software Utility 5 3 3 Using Operations Operation Terminal Operation Configuration Operation Monitor Operation Diagnostic Operation Calibration Operation Model Number Terminal Emulation user can input command and get response message Select one exist OMR module and select Configuration to do this module s common and private settin
17. opology OMR 6520 OMR Modules RS 232 to RS 485 RS 422 Converter Terminat sissa mama OY a AS t OMR 6510 Repeater Es me 0 J epeater OMR Modules gt 3 C Terminat OMR I O modules OMR I O modules Figure 1 3 Free Topology 1 7 Constructing a OMR Network Go through the following steps the user can construct an OMR network easily Setup an OMR 6520 Connect the host computer with the OMR 6520 Setup one or more OMR 6510 if necessary Connect the OMR 6510 to extend to RS 485 bus if necessary Install the OMR utility software from disk Initialize the brand new OMR modules Add the new OMR modules into RS 485 network TO 01 50 0 Refer to chapter 2 for executing step 1 and 2 Refer to chapter 3 for executing step 3 4 and for understanding the time to install OMR 6510 The knowledge about the software for operating the OMR is in chapter 5 For executing the step 6 and step 7 refer to chapter 4 Introduction 1 5 1 8 Termination Bus In order to avoid signal reflections on the bus each bus segment has to be blanked off at its physical beginning and at its end with the characteristic impedance A termination resister Rt is installed for this purpose The Rt value 1200 2 is recommended and the detailed connection of Rt can be referred from the Terminator Connection diagram below Data Data 120 ohms 120 ohms Data Data Terminator Connection 1 9 Shielding In case of in
18. river is used to open the case Software power supply and wiring are not necessary Setup Procedure Only hardware switch setting can be setup in OMR 6520 The user can set the speed of the serial interface RS 232 and RS 422 RS 485 and the serial data format The speed and the data format on the whole RS 485 network must be identity otherwise the communication will be not correct To setup the OMR 6520 use the screwdriver to open the case then change the switch setting The new setting is available after power on The case must be put back and locked carefully Note that do not scratch the surface of the circuit while setting up otherwise the surface coating or even the circuits will be damaged Default Setting e 9600 baud rate e 10 bits series data format one start bit eight data bits one stop bit no parity check SW1 Setting SW1 Default Setting 9600 bps a A12 3 ja 5 6 7 BaudRate ON OFF OFF OFF OFF OFF OFF RTS Control OFF ON OFF OFF OFF OFF OFF 1200 or 115 2k bps OFF OFF ON OFF OFF OFF OFF 2400 bps ON OFF OFF OFF 4800bps OFF ON OFF OFF 9600bps F OFF ON OFF OFF OFF ON 38400 bps Note 1 115 2kbps is supported by version A1 2 or later 2 6 OMR 6520 SW2 Setting SW2 Default Setting Start Bits 1 Data Bits 8 Stop Bits 1 Parity None Packet Data Bits Pare 2 3 8 id 2 3 Installation
19. sion line positive OMR 6510 3 3 OMR 6510 Functional Block Diagram Power Input Power Regulator 10V 304 amp Filte RS 422 RS 485 Tn RS 422 RS 485 Communication Receiver Driver Receiver Driver Switching W Controller a Communication Direction Control TVS Transient Voltage Suppresser PTC Positive Temperature Coefficient 3 4 OMR 6510 3 2 Setup Objective of Setup In normal condition it only needs to setup the OMR 6510 when the OMR bus with more than 128 modules or the distance exceeds 4000 feet long The default configuration of this communication module is 9600 bps and data format of 8 data bits with 1 start bit 1 stop bit and no parity check Note that the data format is reserved to be compatible with other brand s communication port it should not be modified if only OMR is used in a system The baud rate can be configured according user s requirement Setup Eguipments Only screw driver is used to open the case Software power supply and wiring are not necessary Setup Procedure Only hardware switch setting can be setup in OMR 6510 The user can set the speed and the data format of the RS 422 RS 485 interface The speed and the data format on the whole network must be identity otherwise the communication may be not correct To setup the OMR 6510 use the screw driver to open the case then change the switch setting The new setting is available after power on The case must be put back and locked c
20. that can communicate at high rate over long distance The standard RS 485 can operate at speed up to 10 M bps over cable length up to 4000 feet The RS 485 interface can support up to 32 drivers receivers on the same line This allows actual networking applications on a parity line system Sometimes called multi drop The RS 485 uses differential transmission on a balance line Its easy wiring makes it popular to use in industrial applications Introduction 1 3 1 5 1 6 RS 485 on OMR The OMR improves the RS 485 capability for minimizing the user s cost On each OMR module a half duplex RS 485 transceiver is used to communicate with other modules A single twisted pair of wires which provides standard differential transmission is used to transmit and receive data between modules The high input impedance of each OMR receiver allows up to 128 OMR modules on the same RS 485 bus without using a signal repeater The maximum transfer rate of OMR is 115 2Kbps which is lower than the maximum speed of the RS 485 standard The slew rate limiter on every RS 485 transceiver of OMR is very useful for transmitting error free data minimizing EMI and reducing reflections caused by improperly terminated cables The OMR on a network may not use the same power supply Therefore the voltage difference between grounds of the modules may exist Excessive output current and power dissipation caused by faults or by bus contention are prevented by t
21. uisition modules including the communication modules the analog input modules the analog output modules and the digital I O modules Communication Module e OMR 6510 RS 422 RS 485 Repeater e OMR 6520 RS 232 to RS 422 RS 485 Converter e OMR 6530 USB to RS 422 RS 485 Converter Analog Input Modules e OMR 6011 Multifunction High Gain Analog Input Module with DI O e OMR 6011D Multifunction High Gain Analog Input with 5 Ydigit LED Display with DI O OMR 6012 Analog Input Module with DI O OMR 6012D Analog Input Module with 5 1 2 digit LED Display with DI O OMR 6013 3 channel RTD Input Module OMR 6014D Analog Transmitter Input Module with 5 1 2 digit LED Display OMR 6017 8 channel Analog Input Module e OMR 6018 8 channel Thermocouple Input Module Analog Output Modules e OMR 6021 Single Channel Analog Output Module e OMR 6024 4 channel Analog Output Module with DI Digital O Modules OMR 6050 Module with 7 DI channels and 8 DO channels OMR 6052 Isolated Digital Input Module OMR 6053 16 channel digital Inout Module OMR 6054 15 channel digital Input Module OMR 6056 15 channel digital Output Module OMR 6058 28 channel programmable digital I O Module OMR 6060 4 channel Relay Output amp Digital Input Module OMR 6063 8 channel Relay Output Module OMR 6080 Counter Frequency Input Module 1 4 EIA RS 485 Standard The EIA RS 485 interface is a communication standard developed for multi dropped systems
22. ximum 128 OMR on a bus Maximum 256 addressable OMR modules High transfer speed Surge protection Lower power consumption Specifications of OMR 6510 lt Input Output e Interface RS 485 differential 2 half duplex wires RS 422 differential 4 full duplex wires e Speed bps 1200 115 2K 2400 4800 9600 19 2K 38 4K Data Format 9 bits 10 bits 11 bits or 12 bits e Max RS 485 network bus distance 4000 ft 1200m Note 1 115 2k is supported by version A1 2 or later Bus e Max Loading 128 OMRs on a bus lt Power e DC Power Supply 10V to 30V e Power Consumption 0 9 W A Look at OMR 6510 amp Pin Assignment OMR 6510 3 1 550080088 DATA G lt A RS 422 RS 485 OMR 6510 Repeapter SW I 1 ON W ON 400 D 3 2 OMR 6510 Pin Definitions Pin Signal Name Y DATA G DATA TXIN TXIN RXOUT RXOUT R VS B GND RXIN RXIN TXOUT TXOUT G DATA Y DATA Description RS 485 transmission line positive RS 485 transmission line negative RS 422 transmission input line positive RS 422 transmission input line negative RS 422 receiving output line positive RS 422 receiving output line negative OMR power supply 10V 30V OMR ground RS 422 receiving input line negative RS 422 receiving input line positive RS 422 transmission output line negative RS 422 transmission output line positive RS 485 transmission line negative RS 485 transmis
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