Moxa Technologies C168P user manual Installation Guide, RS-485 Mode

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RS-485 Mode

RS-485 Mode

The Opt8J supports only 2-wire RS-485 communication. Set the respective switch to ON position to use RS-485 interface. This means the port can transmit data only when RTS is asserted, and receive data only when RTS is not asserted (half-duplex).

Refer to Chapter “Connection Option (Opt8x) and Cable Wiring” for RS-422/RS- 485 cable wiring. And also to Chapter “Serial Programming Tools” for Opt8J RS- 485 programming details.

Installation Guide

This section gives a brief summary of how to install the C168P under each supported operating system. The installation is simple and involves the following stages:

Configure C168P with io-irq.exe. Install the C168P board

Install the software from the diskette Configure the driver for the board and ports

Connect the devices with the cable

Restart the system

Check the driver initialization status

If the system restart successfully, you may develop your applications or

execute the desired applications

See Chapter “Hardware Installation”

See Chapter “Software Installation” for respective OS

See Chapter “Connection Cable and Cable Wiring”

See Chapter “Software

Installation”

See Chapter “Serial

Programming Tools”

1-8C168P User’s Manual

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Contents Universal 8 Port Serial Board C168P User’s ManualMay 1999 7th Edition support@moxa.com.twDisclaimer Copyright NoticeTrademarks C168P User’s ManualMOXA Internet Services Chapter 3 Software Installation About This ManualChapter 2 Hardware Installation Chapter 5 Connection Option Opt8x and Cable WiringSerial Programming Tools Hardware InstallationSoftware Installation Table of ContentsTechnical Reference Connection Option Opt8x and Cable WiringTroubleshooting Overview The Standard Multiport Async SolutionsIntroduction Hardware Configuration Method SwitchQuick Installation JumperMOXA Serial Comm Tools IntroductionOperating System Support Wide ApplicationsFeatures Check List Opt8A/Opt8B/Opt8SP5 P6 P7 P8 Opt8C/Opt8DP1P2 P3 P4 Opt8F/Opt8ZRS-422 Mode Opt8JRS-422/485 Port Switch of Opt8J Opt8JInstallation Guide RS-485 ModeC168P Hardware InstallationDefault Settings Quick Hardware Installation How to Do Quick Hardware InstallationHardware Installation with IO-IRQ Utility IO-IRQ Utility and Hardware Configuration 2-4 C168P User’s Manual2. Select “Smartio/Industio ISA Family” and press ENTER key Speed 5. Press F10 to save the configuration and exit the utility 2-8 C168P User’s Manual Software Installation Windows NTInstalling Driver 5. Select “MOXA Smartio/Industio Family multiport board” in the “Select OEM Option” dialog box, and then click OK to enter the “Moxa Smartio/Industio Configuration Panel” dialog box to start the installation 3-4 C168P User’s Manual Tx FIFO Size Port NumberRx FIFO Trigger 3-6 C168P User’s Manual Configuring Board and Port In this configuration panel, you may Removing Driver Windows 95/98Updating Driver 1. Run Setup95.exe in the driver diskette Note ! Go directly to the step 7 if you need not change any setting 3-12 C168P User’s Manual If error message like “Smartio C168 Series CAP=0x0180, port 1=COM3 3-14 C168P User’s Manual C168P User’s Manual 3-16 C168P User’s Manual Installing Driver Driver Setup 3-18 C168P User’s ManualSoftware Installation 3-20 C168P User’s Manual You may now enter/modify each port’s configuration. These displayed values are the port initial values as driver is loaded Loading Driver Unloading Driver 3-24 C168P User’s Manual Windows NT and Windows 95/98 InstallationSerial Programming Tools 4-2 C168P User’s Manual PComm Programming LibraryUtilities Diagnostic for MOXA boards only Monitor for MOXA boards under Windows NT Only 4-4 C168P User’s ManualTerminal Emulator 4-6 C168P User’s Manual DOS API-232 LibraryData Scope There are three major functions in Data Scope utility RS-485 Programming for Opt8J DiagnoseThere are 2 solutions to control RS-485 2-wire transmission Solution4-10 C168P User’s Manual RS-232 Cable Wiring for Opt8A/B/C/D/S Connection Option Opt8x and Cable Wiring2 RxD 3 TxD 4 CTS 5 RTS 6 DTR 7 GND 8 DCD 20 DSR The followings are pin assignments for various connection optionsOpt8A/S DCE, DB25 Female Opt8B/C DTE, DB25 MaleNull Modem Cable Opt8B/C Type 1 To connect C168P to a DTE deviceStraight-through Cable Opt8A/S Type 2 To connect C168P to a DCE device 5-4 C168P User’s ManualConnection Option Opt8x and Cable Wiring DTE Device 5-6 C168P User’s ManualOpt8A/S RS-422 Cable Wiring for Opt8J/F/Z 2 RxD+B 3 TxD+B 14 RxD-A 16 TxD-A 7 GND 4 CTS+B 5 RTS+B RS-422 Pinouts for Opt8J/F/ZOpt8J/F/Z RTS-ARS-422 Device RS-422 Point-to-pointOpt8J/F/Z RS-422 Device NRS-485 Cable Wiring for Opt8J Opt8JRS-422/485 Impedance Matching 5-12 C168P User’s Manual Hardware causes and solutions TroubleshootingGeneral Troubleshooting Hardware Causes and SolutionsSoftware Causes and Solutions Step Step Step Step Step Step A Io-irqStep 8. Power off the PC 3. The COM number of the C168P conflicts with others 4. Windows NT system panic blue screen6-6 C168P User’s Manual Appendix SpecificationsTechnical Reference A-2 C168P User’s Manual Device PC I/O Port Address MapIO/ Address A-4 C168P User’s Manual DB62 Connector PinoutsSignal Pin noCustomer name Company Tel Fax EmailDate Problem Report Form C168P3. Moxa hardware settings 1. Moxa Product C168P Serial Number 2. Moxa Driver VersionReturn Procedure