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ICS Advent ULTRA-485 Product Manual

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Model ULTRA-485
Product Manual
MANUAL NUMBER : 00750-006-5A

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Summary of Contents for ICS Advent ULTRA-485

  • Page 1 Model ULTRA-485 Product Manual MANUAL NUMBER : 00750-006-5A...
  • Page 2 Support Library. Thank you. The information in this document is provided for reference only. ICS Advent does not assume any liability arising from the application or use of the information or products described herein. This document may contain or reference information and products protected by copyrights or patents and does not convey any license under the patent rights of ICS Advent, nor the rights of others.
  • Page 3 The limited warranty is void if the product has been subjected to alteration, neglect, misuse, or abuse; if any repairs have been attempted by anyone other than ICS Advent or its authorized agent; or if the failure is caused by accident, acts of God, or other causes beyond the control of ICS Advent or the manufacturer.
  • Page 4 Limitation of Liability In no event shall ICS Advent be liable for any defect in hardware, software, loss, or inadequacy of data of any kind, or for any direct, indirect, incidental, or consequential damages in connection with or arising out of the performance or use of any product furnished hereunder.
  • Page 5 Use caution when servicing any electrical component. We have tried to identify the areas which may pose a Caution or Warning condition in this manual; however, ICS Advent does not claim to have covered all situations which might require the use of a Caution or Warning.

  • Page 6: Table Of Contents

    Table of Contents Chapter 1: Introduction ....................1 Overview ............................... 1 What's Included ............................ 1 Factory Default Settings ........................1 Chapter 2: Card Setup ....................2 Address Selection ..........................2 IRQ Selection ............................3 Interrupt Modes ............................. 4 RS-485 Enable Modes .......................... 5 Connector Pin Assignments ........................
  • Page 7 List of Figures Figure 1: Dip-switch SW-1 (Set for address 3F8 Hex) ................2 Figure 2: Header E1, IRQ Selection ......................3 Figure 3: Header E2, Normal IRQ Mode ..................... 4 Figure 4: Header E2, Shared IRQ Mode ..................... 4 Figure 5: Header E5 RS-485 Transmit Mode ....................

  • Page 8: Chapter 1: Introduction

    The ULTRA-485 provides the PC with an additional RS-422/485 serial port for terminals, PLC communication, laboratory instrumentation, etc. The unique feature of the ULTRA-485 is the ability to be RS-485 compatible without the need for special software or drivers. This is especially useful in Windows, Windows NT, and OS/2 environments where the lower level I/O control is abstracted from the application program.

  • Page 9: Chapter 2: Card Setup

    The ULTRA-485 occupies 8 consecutive I/O locations and looks to the PC as a standard serial port. A DIP-switch (SW1) is used to set the port address options for the ULTRA-485 . Be careful when selecting the port addresses as some selections may conflict with existing ports. The following table shows the addressing options available with the standard PAL.

  • Page 10: Irq Selection

    The ULTRA-485 contains several jumper which must be set for proper operation. Header E1: This header selects the interrupt request for the ULTRA-485. If COM1: is selected, this jumper must be on the IRQ4 setting. If COM2: is selected, this jumper must be on IRQ3. Any two or more ports can share a common IRQ by placing the jumpers on the same IRQ setting, and setting the appropriate selections at E3.

  • Page 11: Interrupt Modes

    Figure 3: Header E2, Normal IRQ Mode Set the jumper to ‘S’ if you are using more than one ULTRA-485 in a bus or to completely remove the pull-down resistor for hardware compatibility. Setting the adapter in this configuration when it is not accompanied by a pull-down resistor will prevent the ports from triggering an interrupt.

  • Page 12: Rs-485 Enable Modes

    RS-485 as RTS enable or RTS block mode transfer. One of the unique features of the ULTRA-485 is the ability to be RS-485 compatible without the need for special software or drivers. This ability is especially useful in Windows, Windows NT, and OS/2 environments where the lower level I/O control is abstracted from the application program.

  • Page 13: Figure 6: Header E3 Rs-485 Receive Mode

    Every time a character is transmitted, it is also received by the board. This can be beneficial if your software can handle echoing (i.e. using received characters to throttle the transmitter) or it can confuse your system if it does not. The ULTRA-485 provides a jumper block (E3) to enable or disable this function.

  • Page 14: Connector Pin Assignments

    Chapter 1: Installation Connector Pin Assignments EIA-530 DIP-shunt E4 selects the pin out for the DB-25 connector P3. With the 5 position shunt in the EIA-530 mode, the ULTRA-485 complies with the EIA-530 pin out with the following signals supported: SIO-485 EIA-530...

  • Page 15: Sio-485

    ULTRA-485 Manual SIO-485 With the 5 position shunt in the SIO-485 mode the ULTRA-485 supports the following pin out list. EIA-530 SIO-485 Figure 8: Dip-shunt E4 (SIO-485 Mode) i t i i t a i t i i t a...

  • Page 16: Rs-530 / 422 / 485 Line Termination

    Each switch corresponds to a specific portion of the interface. If multiple ULTRA-485 adapters are configured in a network, only the boards on each end should have switches 1, 2 & 3 ON. Refer to the following table for each switch‘s operation:...

  • Page 17: Chapter 3: Installation

    ULTRA-485 Manual Chapter 3: Installation Software Installation Windows 95/98/2000/ME Install the software before installing the hardware as follows: 1. Insert the I/O and Communication Software “C” Series CD into your CD-ROM drive. 2. Go to the SeaCOM directory and click on Install to install the SeaCOM software to your system.

  • Page 18: Hardware Installation

    Chapter 1: Installation Hardware Installation The ULTRA-485 can be installed in any 16-bit PC expansion slot. The ULTRA-485 contains several jumper straps for each port that must be set for proper operation. 1. Turn off PC power. Disconnect the power cord.

  • Page 19: Chapter 4: Technical Description

    16C854 UART that provides a 128-byte FIFO and enhanced clocking features. The unique feature of the ULTRA-485 is the ability to be RS-485 compatible without the need for special software or drivers. This is especially useful in Windows, Windows NT, and OS/2 environments where the lower level I/O control is abstracted from the application program.

  • Page 20: Chapter 5: Specifications

    Chapter 1: Installation Chapter 5: Specifications Environmental Specifications c i f ° 0 ° 0 ° 0 ° 0 ° 2 ° 2 ° 4 ° 8 i d i Manufacturing Specifications Boards are built to U.L. 94V0 rating and are 100% Electrically tested. Boards are solder mask over bare copper or solder mask over tin nickel.

  • Page 21: Appendix A: Troubleshooting

    ULTRA-485 Manual Appendix A: Troubleshooting A software testing utility is supplied with the adapter and will be used in the troubleshooting procedures. By using this utility and following these simple steps, most common problems can be eliminated without the need to call Technical Support.

  • Page 22: Appendix B: Electrical Interface

    Chapter 1: Installation Appendix B: Electrical Interface RS-422 The RS-422 specification defines the electrical characteristics of balanced voltage digital interface circuits. RS-422, unlike RS-232, is a differential interface that defines voltage levels and driver/ receiver electrical specifications. On a differential interface, logic levels are defined by the difference in voltage between a pair of outputs or inputs.

  • Page 23: Figure 11: Rs-485 Two Wire Example

    ULTRA-485 Manual RS-485 The RS-485 interface is very similar to RS-422 is several ways. RS-485 is a differential interface that allows cable lengths up to 4000 feet and data rates up to 10 Megabits per second. The signal levels for RS-485 are the same as those defined by RS-422. RS-485 has electrical characteristics that allow for 32 drivers and 32 receivers to be connected to one line.

  • Page 24: Appendix C: Asynchronous Communications

    Chapter 1: Installation Appendix C: Asynchronous Communications Serial data communications implies that individual bits of a character are transmitted consecutively to a receiver that assembles the bits back into a character. Data rate, error checking, handshaking, and character framing (start/stop bits) are pre-defined and must correspond at both the transmitting and receiving ends.
  • Page 25 EN 60950:1992 Safety of Information Technology Equipment The technical documentation required to demonstrate this product meets the requirements of the EMC Directive and the Low Voltage Directive has been compiled by ICS Advent and is available for inspection by the relevant enforcement authorities.

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