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Brainboxes 1 Port PCI Velocity RS422 User Manual Download Page 25

PCI 1 Port RS422/485 

Software Setup 

Chapter 3 Page 25 

Note: The values used in the above section were those 
returned by the BBCARDS program, as described in the 
above section. 
 When you have finished, click on OK. A restart message 
will be displayed; to save time only restart when both ports 
have been added and correctly configured. 

 

• 

After adding the COM port the COM Ports Window will look 
similar to the following: 

Configuring The COM Ports.  

• 

From the COM Ports window choose the port that you wish to 
configure and click on Settings - the following dialogue will 
be displayed: 

Summary of Contents for 1 Port PCI Velocity RS422

Page 1: ...1 1 EDITIO N JAN UARY 2000 UDLQ R HV...

Page 2: ...lowing standards CE standard EN55022 1987 Class B IEC 801 2 1991 Level 2 IEC 801 3 1984 Level 2 IEC 801 4 1998 Level 2 PCB IEC 249 2 5 NEMA L1 1 10 DIN 40802 UTE C 93 711 BS 4584 MIL P 13949E UL Appro...

Page 3: ...cifications gives details of the PCI Velocity RS422 485 specifications and shows you how to install your PCI Velocity RS422 485 card Chapter 3 PCI Velocity RS422 485 Software Configuration Guide shows...

Page 4: ...eneral PCI RS422 485 Serial Port Features 11 Autogating 11 Configuring The PCI RS422 485 Cards 13 Full Duplex Settings 13 With Half Duplex Settings 13 Hardware Installation 14 Problems 15 CHAPTER 3 PC...

Page 5: ...ation 48 Configuring Ports 49 Advanced Port Settings 50 Uninstalling Serial Solutions PCI 52 CHAPTER 4 ADDITIONAL RS422 485 OPERATION 53 The RS422 Standard 53 The RS485 Standard 53 Terminating Impedan...

Page 6: ...ng components Serial Solutions for DOS Serial Solutions for Windows 3 x Serial Solutions for Windows 95 98 Serial Solutions for Windows NT All the Serial Solutions drivers have the following features...

Page 7: ...f the various serial ports Flexible and fast EASY programs The EASY disk contains short simple to understand and use EASYBAS EASYC and ASYPAS programs providing straight forward file type I O to seria...

Page 8: ...nel applet Allows configuration of extra serial ports from the Windows Control Panel Supports single as well as multiport cards using shared interrupts BbLynx drv Replacement for COMM DRV LynxAPI dll...

Page 9: ...the following programs Setup exe Expands into the Control Panel applet and associated files which allows the configuration of all ports on Serial Solutions serial cards Ssmodem inf Setup file for Seri...

Page 10: ...e communications up to 4000 feet 1 2 Kilometres 16C750 FIFO provides 64 byte input and 64 byte output buffer on each port Maximum baud rate of 921 600 Baud 1 Megabaud Word length of 5 6 7 or 8 bits Ev...

Page 11: ...g systems The interrupt service routines in multitasking OS s have a long latency i e time taken to switch context from the foreground program to the interrupt routine During this time the first few b...

Page 12: ...CITYRS422 485 Specifications Dimensions 4 8 x 2 5 in 122 x 63 5 mm I O Connection Serial Port 1 9 pin Male D type Weight 90g Figure 2 3 9 Pin D Connector Port Pinouts 3 1 5281 1 3 1 75 160 77 7 7 3 1...

Page 13: ...e RXD TXD and the RXD TXD signals to short together at the 9 pin connector The multiplex jumpers should only be set for RS485 Half Duplex operation when one twisted pair is used to interconnect both t...

Page 14: ...l Card STEP 5 The connectors should fit neatly through the slot s aperture to the outside world STEP 6 Now replace the system unit s cover by carefully sliding it Choose an empty expansion slot Remove...

Page 15: ...to power up normally check the following i Ensure that the PCI Serial card is installed correctly ii Ensure that other cards in the PC have not been upset iii Ensure that the power is connected and th...

Page 16: ...ter the PCI RS422 485 card is inserted 1 Determining the resources that the PCI RS422 485 has claimed 2 Informing the Serial Solutions DOS device driver of those resources Determining PCI RS422 485 Re...

Page 17: ...owed by a hexadecimal address in the form Ax y where x is COM port range and y is I O address I IRQ range specifies card interrupt and COM port range The COM port range specifies the COM port s Range...

Page 18: ...The DTR output line is set true just in case the external serial device needs a true signal Type 3 RS485 Send only This is a half duplex transmit only handshake The PC transmits whenever it wishes it...

Page 19: ...returned by the BBCARDS EXE application earlier A brief explanation for the parameters required by NEWCOM SYS follows Port Address A5 0140 COM port 5 is defined with an i o address of 0140h IRQ Range...

Page 20: ...the NEWCOM SYS command line looks like DEVICE NEWCOM SYS A5 0140 I 11 5 B5 S 512 H 4 and should be entered into the CONFIG SYS file Once you are sure that these parameters have been entered correctly...

Page 21: ...lutions CDROM by typing the following D diskimg ssutil pci BBCARDS Where D is the Letter of your CDROM drive BBCARDS EXE will return a string that looks similar to the following values contained in th...

Page 22: ...nt options will be installed selecting the Del All button will select all installed components for deletion and Add All chooses all uninstalled components for installation options may not be changed w...

Page 23: ...tup program has finished select the Done button Note If the Serial Port driver options has been selected after the setup program has finished Windows will display a restart message answer Yes and Seri...

Page 24: ...following will be displayed In Standard Settings In the COM Base field enter the value 0140 Note COM ports are defined with an i o address range which in this case begins at 0140 and all subsequent po...

Page 25: ...ave finished click on OK A restart message will be displayed to save time only restart when both ports have been added and correctly configured After adding the COM port the COM Ports Window will look...

Page 26: ...to discard the entries of ports that have been removed from the system Note Never try to leave out a serial port number when using the delete button because Windows may automatically shift serial port...

Page 27: ...Hardware Installation in Chapter 2 and switch your computer on again During the booting process Windows 95 will detect the PCI Velocity RS422 485 but will display it simply as a PCI CARD and you will...

Page 28: ...5 Software Setup Chapter 3 Page 28 The Wizard should then display the following Click Other Locations In the location space type drive diskimg sswin9x where drive is the appropriate letter for your CD...

Page 29: ...Page 29 Click Finish After copying the file Windows 95 will then detect each of the serial ports in turn and install them as communications ports Using the right hand mouse button click on the My Comp...

Page 30: ...Velocity R422 485 card will appear under the Multi function adapters branch Also a Velocity RS485 Port will appear under the Ports COM LPT branch For most users who have 4 or less COM ports the new po...

Page 31: ...lti Function Adapter entry in Device Manager serial and click on properties to view the cards general properties Click on the Serial Solutions tab Solutions tab produces The I O address and interrupt...

Page 32: ...isable to first check which COM ports are in use port availability can be checked by viewing the Device Manager All COM ports present will be listed under the entry Ports COM LPT The above screenshots...

Page 33: ...t operates the maximum value available is dependant upon the Maximum Baud Rate Setting see below 2 Data Bits 3 Parity 4 Stop Bits 5 Flow Control 6 Maximum Baud Rate Setting four values are available w...

Page 34: ...00 14400 28800 4800 9600 19200 38400 7200 14400 28800 57600 9600 19200 38400 76800 19200 38400 76800 153600 38400 76800 153600 230400 57600 115200 230400 460800 115200 230400 460800 921600 Note Many s...

Page 35: ...n of a receiver FIFO trigger setting Selecting a low value will allow the interrupt to be serviced quicker which is good for slow machines If you have a fast machine setting a high value will give you...

Page 36: ...Multiplex Jumper configuration as described in the section RS485 Multiplex Jumper Settings in Chapter 2 to ensure accurate and error free data transmission CTS Hold True determines whether the CTS han...

Page 37: ...ction Hardware Installation in Chapter 2 and switch your computer on again During the booting process Windows 98 will detect the PCI Velocity RS422 485 but will display it simply as a PCI CARD and you...

Page 38: ...8 The Wizard should then display the following Select Search for the best driver for your device Click Next Click Specify a location In the location space type drive diskimg sswin9x where drive is the...

Page 39: ...CI 1 Port RS422 485 Software Setup Chapter 3 Page 39 Click Next Click Finish After copying the file Windows 95 will then detect each of the serial ports in turn and install them as communications port...

Page 40: ...When the Device Manager is viewed the PCI 1 port Velocity R422 485 card will appear under the Multi function adapters branch Also a Velocity RS485 Port will appear under the Ports COM LPT branch For...

Page 41: ...he Multi Function Adapter entry in Device Manager serial and click on properties to view the cards general properties Click on the Serial Solutions tab Solutions tab produces The I O address and inter...

Page 42: ...dvisable to first check which COM ports are in use port availability can be checked by viewing the Device Manager All COM ports present will be listed under the entry Ports COM LPT The above screensho...

Page 43: ...operates the maximum value available is dependant upon the Maximum Baud Rate Setting see below 9 Data Bits 10 Parity 11 Stop Bits 12 Flow Control 13 Maximum Baud Rate Setting four values are available...

Page 44: ...0 14400 28800 4800 9600 19200 38400 7200 14400 28800 57600 9600 19200 38400 76800 19200 38400 76800 153600 38400 76800 153600 230400 57600 115200 230400 460800 115200 230400 460800 921600 Note Many se...

Page 45: ...n of a receiver FIFO trigger setting Selecting a low value will allow the interrupt to be serviced quicker which is good for slow machines If you have a fast machine setting a high value will give you...

Page 46: ...Multiplex Jumper configuration as described in the section RS485 Multiplex Jumper Settings in Chapter 2 to ensure accurate and error free data transmission CTS Hold True determines whether the CTS han...

Page 47: ...ease contact your system administrator Software Installation Insert the PCI 1 Port Velocity RS422 485 into your PC as described in chapter 2 and restart Place the supplied CDROM titled Serial Solution...

Page 48: ...tware Setup Chapter 3 Page 48 Examining Card Configuration Go to Control Panel Start Settings Control Panel and double click on Serial Solutions PCI You will be presented with a Serial Solutions PCI P...

Page 49: ...tings available in this window are 1 Baud Rate determines the baud rate at which the selected port operates the maximum value available is 921 600 1 Megabaud Note Many serial comms applications will n...

Page 50: ...a Bits 8 Parity None Stop Bits 1 Flow Control Hardware Advanced Port Settings When the Advanced button of Port Settings is selected the following dialogue is displayed Settings available in this windo...

Page 51: ...d more data bytes per interrupt and will give more time for multi tasking operations Use Extended FIFO Buffers when checked extends the selected ports FIFO buffer from 16 to 64 bytes 2 Automatic Hardw...

Page 52: ...on resets the advanced properties to the followed settings Use FIFO Buffers On checked Transmit Buffers 1 Receive Buffers 8 Use Extended FIFO Off Unchecked Automatic Hardware Flow Control Off 485 Mode...

Page 53: ...ytes per second A 120 Ohm resistor should be used to terminate the receiving end of the line It is generally used between one transmitter receiver pair to ONLY one other transmitter receiver pair but...

Page 54: ...rminating impedance s stop echoes caused by the serial data being reflected back at the cable ends It is not necessary to terminate the transmitter end of the twisted pair The AT Dual Port RS422 485 O...

Page 55: ...uses the receiver to go to a known pre determined state and prevents false start bits and bad data being detected during open circuits Fail Safe Short Circuit Protection Short circuits are when the tw...

Page 56: ...ut buffer etc And so no data will be lost RS422 Serial Port Cables Use screened twisted pair Belden cable 9729 and 9829 L type 2493 and 2919 or IBM Part No 4716748 cable to make the RS422 connection U...

Page 57: ...lines in RS422 systems are handled by a software protocol in RS485 systems In situations where more than one device may transmit data on the shared data line each cards RTS line is used as a gating si...

Page 58: ...imply listen to it This scheme is used for theatrical lighting intensity control in the DMX512 standard This is shown in Figure 4 2 below For the talker the RS485 TXD GATE jumper should remain in the...

Page 59: ...o devices trying to drive the data lines at the same time The normal method is to use the RTS line as a talk enable The RTS line should go true immediately prior to the data transmission and go false...

Page 60: ...dress and the command it receives is used to control access to the devices TXD channel This is a Full Duplex system Two twisted pair cables are required One twisted pair is the PC s TXD channel it car...

Page 61: ...unconnected not shorted Figure 4 6 RS485 Full Duplex Not e The receiver end of MAIN line terminated in characteristic impedance stubs off the main not terminated Optional Grounding Arrangements Proper...

Page 62: ...und at one point only by a 100 20 resistor with a power dissipation rating of 1 2W An additional provision may be made for the resistor to be bypassed with a strap to connect signal common and protect...

Page 63: ...fered 7 8 10 cable 8 15 63 64 65 66 67 Changing COM numbers in Windows 95 32 42 command 7 69 Configuring Ports In Microsoft Windows NT 47 connectors 14 CTS 7 10 63 64 65 66 data word length 10 DCD 7 d...

Page 64: ...protocol 7 66 receive 13 67 68 69 70 resistor 62 65 67 RS232 6 10 13 RS422 RS485 10 13 36 46 51 62 70 RS422 Pinout 12 RS485 Multiplex Jumper Settings 36 46 51 RTS 7 10 63 64 65 66 68 69 RXD 10 13 63...

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