SeaLevel Ultra 530.LPCIe User manual

Ultra 530.LPCIe

User Manual | 7106e

Contents

CONTENTS...........................................................................................................................................................2

INTRODUCTION ................................................................................................................................................... 3

BEFORE YOU GET STARTED ...............................................................................................................................4

CARD SETUP ........................................................................................................................................................7

SOFTWARE INSTALLATION ..............................................................................................................................10

HARDWARE INSTALLATION .............................................................................................................................13

TECHNICAL DESCRIPTION ...............................................................................................................................15

TECHNICAL SPECIFICATIONS..........................................................................................................................16

APPENDIX A – TROUBLESHOOTING................................................................................................................17

APPENDIX B – HANDLING INSTRUCTIONS.....................................................................................................22

APPENDIX C – ELECTRICAL INTERFACE ........................................................................................................23

APPENDIX D – ASYNCHRONOUS COMMUNICATIONS ..................................................................................25

APPENDIX E – GROUND LOOP PHENOMENON ..............................................................................................26

APPENDIX F – MECHANICAL DRAWING .........................................................................................................27

APPENDIX G – COMPLIANCE NOTICES ..........................................................................................................28

WARRANTY ........................................................................................................................................................29

Introduction

The Sealevel Ultra 530.LPCIe (Item# 7106e) is a PCI Express 2.0 Gen 1 compliant interface adapter with

one field selectable RS-232/422/485/530 asynchronous serial port supporting data rates up to 921.6K bps

for industrial automation and control applications.

Configure the serial port as RS232 for standard serial COM port requirements. Choose the RS-422 mode

for long distance device connections up to 4000ft. where noise immunity and high data integrity are

essential. Select RS-485 and capture data from multiple peripherals in an RS485 multi-drop network. Up to

31 RS-485 devices can be connected to each port to automate your data collection.

In RS-485 mode, the transmitter is automatically enabled in hardware, eliminating the need for application

software control. This allows the 7106e to be used with standard serial communications applications and

removes the risk of bus contention and data corruption. In RS-232 mode, all modem control signals are

implemented for maximum compatibility with a wide range of serial peripherals. The Sealevel SeaCOM

software driver and utilities make installation and operation easy in Windows 7/8.1/10 and Linux operating

systems.

The Ultra 530.LPCIe ships with a Low Profile PCIe bracket that will only work in a Low Profile PCIe slot. If

you need a standard size PCIe bracket, please order Item# 7106eS. The product is RoHS compliant and

meets the requirements of RoHS (2011/65/EU) directive.

Features

•Serial port configurable for RS-232/422/485/530

•On board DIP switch configuration with software override

•UART with 256-byte TX and RX FIFOs

•Asynchronous data rates to 921.6K bps

•Automatic RS-485 enable/disable

•Software selectable 250K slew rate limiting, to minimize electromagnetic interference

•The PCIe adapter includes one DB25M connector

Before You Get Started

What’s Included

The Ultra 530.LPCIe is shipped with the following items. If any of these items are missing or damaged,

please contact Sealevel for replacement.

•Ultra 530.LPCIe Adapter

Advisory Conventions

Warning

The highest level of importance used to stress a condition where damage could result to the

product, or the user could suffer serious injury.

Important

The middle level of importance used to highlight information that might not seem obvious or a

situation that could cause the product to fail.

Note

The lowest level of importance used to provide background information, additional tips, or other

non-critical facts that will not affect the use of the product.

Optional Items

Depending upon your application, you are likely to find one or more of the following items useful with the

7106e. All items can be purchased from our website (www.sealevel.com)by calling our sales team at (864)

843-4343.

DB25 Female to DB25 Male Extension Cable (Part Number CA104)

The CA104 is a standard DB25F to DB25M serial extension

cable. Extend a DB25 cable or locate a piece of hardware where

it is needed with this six foot (72) cable. The connectors are

pinned one-to-one, so the cable is compatible with any device

or cable with DB25 connectors. The cable is fully shielded

against interference and the connectors are molded to provide

strain relief. Dual metal thumbscrews secure the cable

connections and prevent accidental disconnection.

DB25 Female (RS-530) to DB9 Male (RS-422) Cable (Part Number CA175)

DB25 Female (RS-530) to DB9 Male (RS-422) Cable, 10-inch

Length. Convert any DB25 Female RS-530 Async Adapter to the

Sealevel RS-422 DB9 Male pinout. Useful in situations where

cabling is already in place for the Sealevel DB9 implementation

of RS-422.

DB25 Female to DB37 Male Cable (Part Number CA107)

DB25 Female (RS-530) to DB37 Male (RS-449 DTE) Cable, 10-

inch Length. RS-530 was designed to replace the bulky DB37

RS-449 connector. The CA107 cable allows any Sealevel RS-530

adapter to be used in an RS-449 application.

Terminal Block

Terminal Block Kit - (Part Number KT104)

The TB05 terminal block breaks out a DB9 connector to

9 screw terminals to simplify field wiring of serial

connections. It is ideal for RS-422 and RS-485 networks,

yet it will work with any DB9 serial connection, including

RS-232. The TB05 includes holes for board or panel

mounting. The TB05 is designed to connect directly to

Sealevel DB9 serial cards or any cable with a DB9M

connector.

Card Setup

Address and IRQ Selection

The 7106e is automatically assigned memory addresses and IRQs by your motherboard BIOS or by a “Plug-

n-Play” Operating System. Adding or removing other hardware or moving the adapter to another slot may

change the assignment of memory addresses and IRQs.

Clock Modes and Baud Rates

The 7106e derives a 125MHz clock from the PCI express link for the Baud Rate Generator (BRG) which is

divided by a clock prescaler (1 or 4) and a 16-bit clock divisor to obtain a sampling clock of 16X, 8X, or 4X

the serial data rate. The BRG offers a wide range of possible baud rates. Under Windows and Linux the best

choice of divisor is made automatically by the driver. The bit rate error is within the +/– 2% recommended

tolerance for proper serial communication.

Isochronous Clocking

The 7106e operates asynchronously only and does not support isochronous clocking modes.

Electrical Interface Selection via Hardware

Serial port on the 7106e has the ability to be used as RS-232, RS-422, or RS-485. This is selectable via DIP-

switch SW1 configuration. When ON, the DIP switch connects the signal to ground (‘0’) and when OFF, the

signal is pulled high (‘1’.) Please use the following examples to configure your adapter.

Mode selection via hardware (DIP switches)

M1 Switch

M0 Switch

Mode

OFF

RS-232

OFF

RS-422 (Default)

OFF

RS-485 with Echo

RS-485 without Echo

RS-485 Enable Modes

RS-485 is ideal for multi-drop or network environments. RS-485 requires a tri-state driver that will allow the

electrical presence of the driver to be removed from the line. The driver is in a tri-state or high impedance

condition when this occurs. Only one driver may be active at a time and the other driver(s) must be tri-

stated. The output modem control signal Data Terminal Ready (DTR) is used to control the state of the

driver automatically.

Line Termination Selection via Hardware

Typically, each end of the RS-485 bus must have line-terminating resistors (RS-422 terminates at the receive

end only). A 120-ohm resistor is across each RS-422/485 input in addition to a 510-ohm pull-up/pull-down

combination that biases the receiver inputs. DIP switches SW1 allow the user to customize this interface

to their specific requirements. Each switch position corresponds to a specific portion of the interface. If

multiple 7106e adapters are configured in a RS-485 network, only the boards on each end should have

switches T, PU, and PD ON.

If using the board in an RS-485 two-wire network, enable the two switches labeled ‘L’, which tie the

positive/negative transmit/receive pairs together.

Switch

Default

Selection if ON

Enables RS-422/RS-485 120 ohm termination between RD+ and

RD–

Enables RS-422/RS-485 RD+ 510 ohm pull-up to 5V (biasing)

Enables RS-422/RS-485 RD– 510 ohm pull-down to GND

(biasing)

OFF

Enables RS-485 two-wire mode, connecting TX– to RX–

OFF

Enables RS-485 two-wire mode, connecting TX+ to RX+

Electrical Interface, Line Termination, and Echo Selection via Software

DIP switch configuration can be overridden by software settings if so desired, via Port Settings tab in

Control Panel.

Slew Rate Limiting

Slew Rate Limiting (250kbps) is an additional configuration setting available only via software selection. It

helps minimize electromagnetic interference in applications where higher baud rates are not required.

RS-485 Auto-Enable Delay

RS-485 Auto-Enable Delay is an additional configuration setting available only via software selection. It

provides an ability to select a 0 to 15 bit-time delay after the end of the last stop-bit of the last transmitted

character. This delay controls when to automatically disable the RS-485 transmitter. This delay may be

useful in long-cable networks.

On-board LED signal indicators

Driver

Loaded

Heartbeat (1 sec on/off)

Not Loaded

Heartbeat

(a) If the driver is not loaded, all four (4) LEDs flash with the heartbeat signal and the

serial port remains in tristate mode until the driver loads.

(b) If the driver is loaded, the LEDs reflect the current port mode and termination state,

be it DIP switch or software controlled in accordance with the table above.

(d) T is lit if termination is enabled (equivalent to DIP switch ON.)

Software Installation

Do not install the Adapter in the machine until the software has been fully installed.

Only users running Windows 7 or newer should utilize these instructions for accessing and

installing the appropriate driver via Sealevel’s website. If you are utilizing an operating system

prior to Windows 7, please contact Sealevel by calling 864.843.4343 or emailing

[email protected] to receive access to the proper driver download and installation

instructions.

This section contains helpful information pertaining to the installation of supported Sealevel Systems, Inc.

software packages. First, the process of acquiring the software is discussed. Next, the installation is

detailed in a step-by-step guide for Windows and Linux operating systems.

Where to Get Sealevel Software

The current versions of Sealevel software packages can be obtained from the Sealevel website (see

following instructions). If you already have the Sealevel software, proceed to the Windows or Linux

installation section.

•Sealevel software for Windows and Linux operating systems is available at these links:

oSoftware for Windows

oSoftware for Linux

•Choose the link for the desired software package and click on the ‘Download File’ link to download

the current driver.

•Proceed to the Manual Software Installation guide for your operating system.

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