B&B Electronics RS-422 User Manual Download Page 4

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Table of Contents

Documentation Number 3PCIO1-0903 Manual

B&B Electronics Mfg Co – 707 Dayton Rd - PO Box 1040 - Ottawa IL 61350 - Ph 815-433-5100 - Fax 815-433-5104

B&B Electronics Ltd – Westlink Comm. Pk. – Oranmore, Galway, Ireland – Ph +353 91-792444 – Fax +353 91-792445

CHAPTER 6: RS-422/RS-485 CONNECTIONS/OPERATION..... 45

RS-422/485 P

INOUTS

............................................................................ 45

RS-422 & RS-485 D

IFFERENTIAL

IGNALS

.......................................... 47

RS-422 O

PERATION

.............................................................................. 47

RS-485 O

PERATION

.............................................................................. 48

DTR O

PERATION IN

RS-485 M

ODE

...................................................... 48

RS-485 N

ETWORK

IASING

.................................................................. 49

CHAPTER 7: TROUBLESHOOTING............................................. 51

APPENDIX A: JUMPER/MODE TABLES ...................................A-1

APPENDIX B: CONNECTOR PINOUTS...................................... B-1

APPENDIX C: TROUBLESHOOTING WITH COMTEST .........C-1

APPENDIX D: DECLARATION OF CONFORMITY .................D-1

Summary of Contents for RS-422

Page 1: ...d manufactured in Ottawa Illinois USA of domestic and imported parts by International Headquarters B B Electronics Mfg Co Inc 707 Dayton Road P O Box 1040 Ottawa IL 61350 USA Phone 815 433 5100 Genera...

Page 2: ...change without notice and does not represent a commitment on the part of B B Electronics B B Electronics shall not be liable for incidental or consequential damages resulting from the furnishing perf...

Page 3: ...PER MODE TABLE FOR RS 232 422 485 6 INSTALL THE CARD 7 CHAPTER 3 SOFTWARE DRIVER INSTALLATION 9 WINDOWS 95 OR 98 8 SET DTR OPERATION 13 CHANGING COM PORT NUMBER 14 REMOVAL OF DRIVERS CARD 16 WINDOWS 2...

Page 4: ...h 353 91 792444 Fax 353 91 792445 CHAPTER 6 RS 422 RS 485 CONNECTIONS OPERATION 45 RS 422 485 PINOUTS 45 RS 422 RS 485 DIFFERENTIAL SIGNALS 47 RS 422 OPERATION 47 RS 485 OPERATION 48 DTR OPERATION IN...

Page 5: ...tic protective packaging Discharge any static electricity buildup on your body by touching a large grounded metal surface or the metal chassis on equipment connected to earth ground by a 3 wire power...

Page 6: ...routines support Windows communication drivers and a wide range of COM ports Com1 to Com16 or higher Features Optically Isolated Multiple Interface PCI Serial Card Windows 95 98 2000 XP Compatible Dr...

Page 7: ...identally turning the computer on during installation 4 Install the Card replace the cover 5 Reconnect the Power Cord 6 While power is off connect your cables or wait for Step 15 7 Start the computer...

Page 8: ...ngth 5 6 7 or 8 bits Parity Even odd or none Stop bits 1 1 5 or 2 Optical Isolation Data Line Device HCPL0600 or equivalent Handshake Line Device IL207 or equivalent RS 232 Data Lines Drivers Receiver...

Page 9: ...5K nodes Provision for custom biasing R14 R13 Termination None Provision for custom termination R15 Max Power Consumption loaded Voltage V Current mA Power W 5 300 1 5 Typical Baud Rates 75 110 134 15...

Page 10: ...by touching a large grounded metal surface or the metal chassis on equipment connected to earth ground by a 3 wire power cord Avoid touching the gold connectors or other parts on the card except as ne...

Page 11: ...P1 Top 232 Right 422 485 left 422 485 left 422 485 left JP1 Middle No effect TX ENABLE right TX SD left TX SD left JP1 Bottom No effect RX ENABLE right RX ENABLE right RX SD left Table 1 Jumper Mode T...

Page 12: ...on the computer during installation 3 Remove the cover of the computer 4 Locate an empty PCI expansion slot 5 Remove the expansion slot cover Save the retaining screw 6 Ground yourself to the compute...

Page 13: ...before installing the new version See Removal at page 16 Windows 98 screens are shown for this section Windows 95 will have other screen names and text shown 1 Configure the jumpers on card and insta...

Page 14: ...ctronics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 6 Select Sear...

Page 15: ...tawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 Windows will find B B 3PCIO1 Single Port Isolated Serial...

Page 16: ...104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 Another similar screen will be shown before the above After the above is shown installation will hav...

Page 17: ...igned by Windows to the card You will have 1 new B B Com port as shown Select Properties or double click on the new com port Set DTR Operation Set DTR Operation to Normal for RS 232 Set DTR Operation...

Page 18: ...es for Com numbers are shown Select a new number from those not in use Com numbers from Com1 to Com256 may be available Com numbers in use may be used by motherboard ports Modems virtual com ports for...

Page 19: ...91 792445 After returning to the Device Manager screen select Refresh Then double click Ports again You should see the B B port renamed As shown below Example After renaming B B Port from Com5 to Com3...

Page 20: ...Control Panel System 2 Select the Device Manager page 3 Select the B B Com port Click the Remove button 4 Click Multifunction Adaptors then select B B 3PCIO1 Single Port Isolated Serial Card which ma...

Page 21: ...15 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 If the inf folder can t be found select My Computer View Folder Options View Files and Folde...

Page 22: ...at some point in the future you want to update these drivers remove these drivers before installing the new version See Removal on page 34 1 Configure the card to the desired RS 232 422 485 mode using...

Page 23: ...Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 6 Select Search and Click...

Page 24: ...ectronics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 8 Click Next...

Page 25: ...Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 10 Next Windows finds a n...

Page 26: ...ics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 12 Select CD ROM d...

Page 27: ...3 91 792444 Fax 353 91 792445 14 Click Finish Wait for the process to complete Check to verify that a new B B Com port is now available 13 Open Start Settings Control Panel System Then select the Hard...

Page 28: ...remove these drivers before installing the new version See Removal at page 34 1 Configure the port on the Card for the desired RS 232 422 485 mode using the 3 jumpers See Chapter 2 2 Install the card...

Page 29: ...lway Ireland Ph 353 91 792444 Fax 353 91 792445 6 Windows will find the drivers on the CD then provide a notice concerning Windows Logo testing for XP This new feature of XP simply indicates that thes...

Page 30: ...7 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 8 Click Finish to continue inst...

Page 31: ...3 Manual B B Electronics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 7924...

Page 32: ...e driver installation is complete Check to verify that a new B B Com port is now available within the Control Panel System Device Manager If you are more familiar with Windows 95 98 2000 you may want...

Page 33: ...Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 System Properties Hardware Devic...

Page 34: ...Fax 353 91 792445 Under Multifunction Adapters the B B 3PCIO1 Single Port Isolated Serial Card is installed Under Ports B B Com Port COM6 was assigned If Com ports between COM1 and COM6 are not in use...

Page 35: ...53 91 792445 Set DTR Operation Set DTR Operation to Normal for RS 232 Set DTR Operation to RS 485 Mode for 2 wire or 4 wire RS 485 operation Either setting can be used for RS 422 The card jumpers must...

Page 36: ...names for Com numbers are shown Select a new number from those not in use Com numbers from Com1 to Com256 may be available Com numbers in use may be used by motherboard ports Modems virtual com ports...

Page 37: ...number Click OK then OK again on the Settings page After returning to the Device Manager screen it should refresh automatically Then double click Ports again You should see B B port renamed as shown...

Page 38: ...e easily edited under 2000 or XP 3 Remove the two sets of driver files from the Windows INF directory See the screen on the next page These are named by the OS in the sequence of installation On a cle...

Page 39: ...d PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 Windows Explorer WINNT INF Oem2 and Oem3...

Page 40: ...35 B B Electronics Mfg Co 707 Dayton Rd PO Box 1040 Ottawa IL 61350 Ph 815 433 5100 Fax 815 433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 Sh...

Page 41: ...433 5104 B B Electronics Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 Chapter 4 Setting Driver Options DTR Operation Example DTR Operation Screen Windows 98 Select N...

Page 42: ...e to another Com number From the Device Manager Select Properties Settings Advanced Example Advanced Settings Windows 98 Available names for Com numbers are shown Select a new number from those not in...

Page 43: ...software which requires it In the 4X position all standard baud rate settings are multiplied 4 times For example if the software sets 57 6K baud the actual baud rate will be 230 4K baud 115 2K become...

Page 44: ...FO settings should minimize overhead and work well for most users The FIFO Interrupt Trigger levels setting determines how often the host processor services the serial port to send or receive data The...

Page 45: ...cs Ltd Westlink Comm Pk Oranmore Galway Ireland Ph 353 91 792444 Fax 353 91 792445 The optimum setting for each depends on the nature of your data how it fits within the buffer how fast your computer...

Page 46: ...er with Ground they make a 3 wire interface The RTS and CTS signals are Handshaking lines used to indicate to the other device that data can be sent or received These lines may be enabled or disabled...

Page 47: ...needed to interconnect two computers with RS 232 RS 232 devices which require hardware handshaking require connection of RTS CTS and or DTR DSR lines in order to operate properly Programs for RS 232 m...

Page 48: ...to Data B of your devices and from pin 3 to Data A of your devices Make sure your Mode Jumpers are set and that the driver Setting for DTR Operation is RS 485 Mode in the Device Manager Note that the...

Page 49: ...omputer to RD A on the device Connect the RD B pin 9 on the computer to TD B on the device Connect the RD A pin 1 on the computer to TD A on the device Connect the Signal Ground pin 5 to Signal Ground...

Page 50: ...d at 200mV A separate signal ground common connection provides a common mode reference for the transmitter and receiver These factors provide reliable communications at much greater distances than RS...

Page 51: ...mode was established where each transmitter tri states to a high impedance when not transmitting See following section on RS 485 RS 485 Operation In RS 485 mode the transmit driver must be enabled dur...

Page 52: ...D A above the receiver threshold of 200mV for all devices on that section of the network If the biasing is not maintained the first data bit of a signal may not be detected and one or more devices may...

Page 53: ...properly seated in the slot Remove and re insert it or try a different slot Check BIOS is set for PnP OS If you are unable to communicate with the card using your software and hardware devices 1 Chec...

Page 54: ...rrect mode Normal for RS 232 RS 485 Mode for RS 485 RS 422 mode works in either setting provided that the mode jumpers are set correctly 6 A loopback connection for RS 232 connects the Transmit output...

Page 55: ...rs label their data connections for A and B reverse of the standard for RS 422 or RS 485 so that the A line is and B line is inverted following the IC standard In such a case just swap the wires and t...

Page 56: ...RS 232 RS 422 4 Wire RS 485 4 Wire RS 485 2 Wire JP1 Top 232 Right 422 485 left 422 485 left 422 485 left JP1 Middle No effect TX ENABLE right TX SD left TX SD left JP1 Bottom No effect RX ENABLE rig...

Page 57: ...e B 1 RS 232 Pinouts Table B 2 RS 232 DB9 to DB25 Conversion Cable Name DB9 Pin DTE DB25 Pin DTE DCD 1 8 RD 2 3 TD 3 2 DTR 4 20 GND 5 7 DSR 6 6 RTS 7 4 CTS 8 5 RI 9 22 Chassis GND Shield DB9 Shell 1 N...

Page 58: ...485 network See Chapter 2 for example connections Note that the EIA RS 422 Specification labels data lines with an A and B designator Some RS 422 equipment uses a and designator In almost all cases th...

Page 59: ...A Windows Terminal Program for Simple Checks of Serial Ports Works with USB Serial Converters ISA or PCI Serial Cards Serial Port Access under Windows 95 98 2000 XP Com1 Com8 or above Dual Windows sho...

Page 60: ...dow 4 Select the Com port to access or test The drop down box shows available ports not in use 5 Click OK Configure Port is shown 6 Select the needed baud rate parity data bits stop bits Defaults are...

Page 61: ...endix D Declaration of Conformity Statement DECLARATION OF CONFORMITY Manufacturer s Name B B Electronics Manufacturing Company Manufacturer s Address P O Box 1040 707 Dayton Road Ottawa IL 61350 USA...

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