Acces PCI-ICM422/2, User Manual

Page 1: ...ACCES I O PRODUCTS INC 10623 Roselle Street San Diego CA 92121 TEL 858 550 9559 FAX 858 550 7322 MODEL PCI ICM422 485 2 4 USER MANUAL FILE MPCI ICM4S F1b...

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Page 3: ...his document may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of ACCES nor the rights of others IBM PC PC XT...

Page 4: ...not excluded by warranty Warranty commences with equipment shipment Following Years Throughout your equipment s lifetime ACCES stands ready to provideon site or in plant service at reasonable rates si...

Page 5: ...apter 2 Installation 2 1 CD Installation 2 1 3 5 Inch Diskette Installation 2 1 Directories Created on the Hard Disk 2 2 Installing the Card 2 4 Input Output Connections 2 5 Chapter 3 Option Selection...

Page 6: ...d Termination Schematic Page 3 1 Figure 3 2 Option Selection Map Page 3 3 Figure A 1 Typical RS485 Two Wire Multidrop Network Page A 3 List of Tables Table 5 1 Baud Rate Divisor Values Page 5 2 Table...

Page 7: ...and support termination by jumpers on the card If your application requires the transmitter to be un biased please contact the factory RS485 Balanced Mode Operation The PCI ICM485 2 and PCI ICM485 4 s...

Page 8: ...port by port basis One range is for up to 115 200 baud applications and the other is for up to 460 800 baud applications Refer to Baud Rate Divisor Table on page 5 2 of the manual Auto RTS Transceive...

Page 9: ...hat terminateswith female D sub 9 pin connectors Character length 5 6 7 or 8 bits Parity Even odd or none Stop Interval 1 1 5 or 2 bits Serial Data Rates Up to 115 200 baud asynchronous A faster range...

Page 10: ...PCI ICM422 2 4 and 485 2 4 Manual Page 1 4 Manual MPCI ICM4S F1b Figure 1 1 PCI ICM422 2 4 Block Diagram Only one serial channel shown Figure 1 2 PCI ICM485 2 4 Block Diagram...

Page 11: ...ompts to install the software for this card WIN95 98 NT 2000 a Place the CD into your CD ROM drive b The CD should automatically runthe install programafter 30 seconds If the install program does not...

Page 12: ...of CARDNAME that contains C samples Win32 language Subdirectories containing samples for Win95 98 and NT WinRISC exe A Windows dumb terminal type communication program designed for RS422 485 operatio...

Page 13: ...n programs in DOS PCIFind exe A utility for DOS and Windows to determine what base addresses and IRQs are allocated to installed PCI cards This program runs two versions depending on the operating sys...

Page 14: ...e installed in a five volt PCI slot of an IBM or compatible computer Before carefully read the Option Selection section of this manual and configure the card according to your requirements Finally our...

Page 15: ...ee foot long breakout cable is included with the cards Thatbreakout cable terminates in separate 9 pinDBM connectors oneDB9 per port If desired the cards can be purchased without this breakout cable I...

Page 16: ...PCI ICM422 2 4 and 485 2 4 Manual Page 2 6 Manual MPCI ICM4S F1b...

Page 17: ...elect baud rates in either of two ranges When in the X1 position the baud rate range is up to 115 200 baud When in the X4 position the baud rate range is 200 to 460 800 baud Refer to the Baud Rate Div...

Page 18: ...vices REG_SZ COM5 InterruptStatus REG_DWORD 0xFC08 InterruptStatus REG_DWORD 0xFC08 PortIndex REG_DWORD 1 PortIndex REG_DWORD 3 Indexed 0 Indexed 0 Serial3 subkey Serial5 subkey PortAddress REG_DWORD...

Page 19: ...Page 3 3 Manual MPCI ICM4S F1b Figure 3 2 Option Selection Map...

Page 20: ...PCI ICM422 2 4 and 485 2 4 Manual Page 3 4 Manual MPCI ICM4S F1b...

Page 21: ...etected on the PCI bus the addresses assigned toeach function on each of the cards and the respective IRQs and DMAs if any allotted Alternatively some operating systems Windows95 98 2000 can be querie...

Page 22: ...PCI ICM422 2 4 and 485 2 4 Manual Page 4 2 Manual MPCI ICM4S F1b...

Page 23: ...izing the chip requires knowledge of the UART s register set The first step is to set the baud rate divisor You do this by first setting the DLAB Divisor Latch Access Bit high This bit is Bit 7 at Bas...

Page 24: ...mper Baud Rate Divisor x1 Divisor x4 Notes Max Diff Cable Length 460800 N A 1 230400 N A 2 153600 N A 3 115200 1 4 375 feet 57600 2 8 660 ft 38400 3 12 920 ft 28800 4 16 1165 ft 19200 6 24 1620 ft 144...

Page 25: ...u do this with two reads from the receiver buffer at base address 0 When done the UART is ready to use Reception Reception can be handled in two ways polling or interrupt driven When polling reception...

Page 26: ...ASEADDR 2 if readback 4 Readback will be set to 4 if data are available data i inportb BASEADDR outportb 0x20 0x20 Write EOI to 8259 Interrupt Controller return Transmission RS485 transmission is simp...

Page 27: ...and Rx 3 Tx Tx and Rx 4 5 Ground Ground 6 7 8 9 Rx Table 6 1 Connector Pin Assignments The cards can be ordered without the breakout cable In that case your communication cables will connect directly...

Page 28: ...PCI ICM422 2 4 and 485 2 4 Manual Page 6 2 Manual MPCI ICM4S F1b...

Page 29: ...ble This is also true for RS422 but RS485 offers all the benefits of RS422 plus allows up to 32 devices to share the same twisted pairs An exception to the foregoing is that multiple RS422 devices can...

Page 30: ...x Driver Output Voltage unloaded 4V 6V 4V 6V Driver Output Voltage loaded LD and LDGND 2V jumpers in 2V Driver Output Resistance 50S Driver Output Short Circuit Current 150 mA Driver Output Rise Time...

Page 31: ...e following illustration shows a typical multidrop or party line network Note that the transmission line is terminated on both ends of the line but not at drop points in the middle of the line Figure...

Page 32: ...PCI ICM422 2 4 and 485 2 4 Manual Page A 4 Manual MPCI ICM4S F1b...

Page 33: ...accesioproducts com Customer Comments If you experience anyproblems with this manual or just want to give us some feedback pleaseemail us at manuals accesioproducts com Please detail any errors you fi...