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1 SCOPE

This user manual describes the AccessPortTM Advanced Serial Port Terminal / Monitor / Debugger Freeware (AccessPort) authored by SUDT Studio to the extent of optional operation with SerialCommTM products. AccessPort is rich with serial debugging functions and not all of its functions will be covered in this manual. The AccessPort is a Microsoft Windows-based serial debugging tool used in conjunction with the hosted PC/laptop COM serial ports. This document describes the latest version of the AccessPort: Version V1.37. The examples used in this document will be presented using the Microsoft Windows 8 operating system.

2 OVERVIEW

AccessPort is an advanced serial terminal, monitor, simulation and data analysis tool that can be used to configure and control serial devices as well as log, view, analyze, or automate serial communication. SerialCommTM offers a number of data conversion products; primarily RS232 to RS485/RS422/TTL/Ethernet/Fiber Optic converters for your data conversion needs. AccessPortTM Advanced Serial Port Debugger Freeware is an optional robust serial terminal/monitor software. It has a simple user interface that can be used to control, monitor, test, and debug RS232/RS485/RS422/TTL/Ethernet/Fiber Optic data utilizing our serial products for serial data conversion. Although AccessPort is an advanced serial port terminal / monitoring tool with robust functionality while easy to use due to its simplistic user interface. It is used by technicians, engineers, software developers, as well asnovices for designing or debugging serial port-related projects.

AccessPort is a thoroughly tested, mature, and highly-stable product used worldwide by professional engineers, technicians and software developers. It is used as a development aid and debugging tool for RS232 / serial port related projects. Since it’s so easy to use witha "simple" user interface, this tool isa favorite amongst serial port novices.

The software supports Microsoft Windows 98, 2000, XP, Vista, Server 2003, 2008, 2013, Windows 7 32 bit and 64 bit and Windows 8 32 bit and 64 bit.

3 FEATURES

4 INSTALLATION OF THE ACCESSPORT SOFTWARE

The AccessPort Software should be installed on the host Windows based PC or laptop that has access to the serial port that will be controlled or monitored. The installation procedure is as follows:

5 ACCESSPORT USER INTERFACE

The AccessPort Software Interface has many advanced features yet simple to use. It has two main functions 1) Terminal Mode and 2) Monitor Mode. By selecting the Terminal tab the following screen will appear. SEE FIGURE 5.1

FIGURE 5.1

By selecting the Monitor tab the following screen will appear. SEE FIGURE 5.2

FIGURE 5.2

5.1 TERMINAL MODE

We will be documenting the Terminal Mode interface of AccessPort and not the Monitor Mode interface for simplicity. We will be using the Terminal Mode to control, monitor, debug, and test the associated serial ports and SerialComm conversion products connected to the serial ports. SEE FIGURE 5.3

FIGURE 5.3

The Terminal Mode Interface if divided into 6 operational sections:

1) Upper COM port status bar. SEE FIGURE 5.4

FIGURE 5.4

2) Upper menu bar. SEE FIGURE 5.5

FIGURE 5.5

3) Main functions toolbar. SEE FIGURE 5.6

FIGURE 5.5

4) Input display box and control toolbar. SEE FIGURE 5.7

FIGURE 5.7

5) Output data box and control and status toolbar. SEE FIGURE 5.8

FIGURE 5.8

6) Bottom status bar. SEE FIGURE 5.9

FIGURE 5.9

5.1.1 UPPER COM PORT STATUS BAR

This status bar shows which COM port is used and the selected attributes. This status bar will also tell you whether the port is opened or closed. SEE FIGURE 5.10

FIGURE 5.10

5.1.2 UPPER MENU BAR

The upper menu bar is a horizontal menu of main functions available on AccessPort. There are six main categories: "File", "Edit", "View", "Monitor", "Tools", "Operation", and "Help". SEE FIGURE 5.11

FIGURE 5.11

5.1.2.1 FILE CATEGORY

The "File" Category saves data and settings to a file, exports data and exits the program. The "File" Category has the "Save", "Save As", "Export As HexDump", and"Exit" options. SEE FIGURE 5.12

FIGURE 5.12

5.1.2.1.1 SAVE

Saves the AccessPort data and settings.

5.1.2.1.2 SAVE AS

Saves the AccessPort data and settings to a specified file name.

5.1.2.1.3 EXPORT AS HEXDUMP

The data from AccessPort can be exported to a file in Hexadecimal format. Specify the start location and stop location. There are some other parameters you can choose. The Hexadecimal formatted data can be exported to the clipboard or a file by choosing the appropriate option. SEE FIGURE 5.13

FIGURE 5.13

5.1.2.1.4 EXIT

Exits the AccessPort program.

5.1.2.2 EDIT CATEGORY

The "Edit" Category can undo a function, cut, paste and delete and select data in the output display box. The "Edit" Category has the "Undo", "Cut", "Copy", "Paste", "Delete", and "Select All" options. SEE FIGURE5.14

FIGURE 5.14

5.1.2.2.1 UNDO

Undo a previous function.

5.1.2.2.2 CUT

Cuts input display data.

5.1.2.2.3 COPY

Copies input display data.

5.1.2.2.4 PASTE

Pastes input display data.

5.1.2.2.5 DELETE

Deletes input display data.

5.1.2.2.6 SELECT ALL

Selects all of the input display data.

5.1.2.3 VIEW CATEGORY

These options control viewing of AccessPort. It allows for the selecting of unselecting view sections of AccessPort for display. SEE FIGURE 5.15

FIGURE 5.15

5.1.2.3.1 TOOLBAR

Turns on and off the Icons toolbar.

5.1.2.3.2 STATUS BAR

Turns on and off the bottom status bar.

5.1.2.3.3 SENDING BAR

Turns on and off the output data box section.

5.1.2.3.4 DISPLAY BAR

Turns on and off the input display box section.

5.1.2.3.5 LANGUAGE

Changes the language of AccessPort. The available options are English, Chinese (Simplified), Chinese (Traditional), and Russian.

5.1.2.4 MONITOR CATEGORY

The "Monitor" category has functions to control the Monitor mode. The "Monitor" category has the "Clear All", "Auto Scroll", "Show Hex", "Capture Events", "Start Monitor", "Stop Monitor", and "Ports" options. SEE FIGURE 5.16

FIGURE 5.16

5.1.2.4.1 CLEAR ALL

Clears all data.

5.1.2.4.2 AUTO SCROLL

Turns on or off the Auto Scroll function.

5.1.2.4.3 SHOW HEX

Turns on or off the display of HEX (Hexadecimal).

5.1.2.4.4 CAPTURE EVENTS

Turns on or off the ability to captures events.

5.1.2.4.5 START MONITOR

Starts the monitor.

5.1.2.4.6 STOPS MONITOR

Stops the monitor.

5.1.2.4.7 PORTS

Selects the ports to monitor.

5.1.2.5 TOOLS CATEGORY

The "Tools" category is a collection of some useful software tools. The "Tools" category has the "Port Switch", "Transfer File", "Configuration", "Start Debug", "Select Font", and "Background Color" menu options. SEE FIGURE 5.17

FIGURE 5.17

5.1.2.5.1 PORT SWITCH

Switches ports and toggles the "Comm" status on the bottom of the display.

5.1.2.5.2 TRANSFER FILE

Transfers a file. Select the file you want to transfer and press the "SEND" button.  SEE FIGURE 5.18

FIGURE 5.18

5.1.2.5.3 CONFIGURATION

Configures the COM port and serial settings. There is a collection of six menu screens: "General", "Event Control", "Flow Control", Timeout Control" and "Monitor Control".  The default view is the "General" configuration menu option. SEE FIGURE 5.19

5.1.2.5.3.1GENERAL

The "General" configuration menu option contains the main serial port settings and configuration. In order to operate AccessPort the COM port being used must be configured and opened. Selecting the presented required settings and selecting "OK" opens the COM port. The General settings are divided into six sections: "Custom Baud Rate", "Serial Port Settings", "Send Display", "Receive Display", "AutoSend", and "Advanced". SEE FIGURE 5.19

5.1.2.5.3.1.1 CUSTOM BAUD RATE

The "Custom Baud Rate" selects the baud rate data is being transmitted and received. The baud rate is the speed in which the data is be transmitted. The supported baud rates range from 110 bps to 256,000 bps. Standard baud rates are available from the dropdown menu in the Serial Port Settings section. Custom baud rates can be also entered by checking the "Enable" option and typing the custom baud rate. SEE FIGURE 5.19

5.1.2.5.3.1.2 SERIAL PORT SETTINGS

The "Serial Port Settings" allow the COM Port, Baud Rate, Parity Bit, Data Bit, and Stop Bit to be configured. SEE FIGURE 5.19

5.1.2.5.3.1.3 SEND DISPLAY

The "Send Display" selects either Char Format (ASCII Character) or Hex Format (Hexadecimal Number) for the output data that will be sent.  SEE FIGURE 5.19

5.1.2.5.3.1.4 RECEIVE DISPLAY

The "Received Display" selects either Char Format (ASCII Character) or Hex Format (Hexadecimal Number) for the input data display that will be received. SEE FIGURE 5.19

5.1.2.5.3.1.5 AUTOSEND

The "AutoSend" allows the output data to be continuously transmitted with a delay in ms at the end of each transmit specified by the Cycle value. To enable "AutoSend" check the Enable AutoSend box. SEE FIGURE 5.19

5.1.2.5.3.1.6 ADVANCED

The "Advanced" can automatically open a port as soon as the application starts, or notify of any available updates. SEE FIGURE 5.19

FIGURE 5.19

5.1.2.5.3.2 EVENT CONTROL

"Event Control" sets trigger events, if required. Check the "Event Control Settings" options you want to trigger an event. SEE FIGURE 5.20

FIGURE 5.20

5.1.2.5.3.3 FLOW CONTROL

The "Flow Control" settings can be used if flow control is necessary. Flow control is not used by default. You can select whether NONE, RTS/CTS (Hardware), DTR/DSR (Hardware), or XOFF/XON (Software) flow control will be used. Hardware and Software Flow control settings can be configured with the "Hardware Control Settings" or "Software Control Settings". SEE FIGURE 5.21

FIGURE 5.21

5.1.2.5.3.4 TIMEOUT CONTROL

Input and Output timeout control settings are configured here using the "Read Timeout" settings and "Write Timeout" settings. SEE FIGURE 5.22

FIGURE 5.22

5.1.2.5.3.5 MONITOR CONTROL

The "Monitor" settings allow the maximum data buffer to be defined. SEE FIGURE 5.23

FIGURE 5.23

5.1.2.5.4 START DEBUG

This is an advanced feature that will not be covered in the document. The dropdown looks like this. SEE FIGURE 5.24

FIGURE 5.24

5.1.2.5.5 SELECT FONT

Changes the font, text attributes and color of the input display data.

5.1.2.5.6 BACKGROUND COLOR

Changes the background color of the input display box.

5.1.2.6 OPERATION CATEGORY

The "Operation" category is a collection of operational functions. The "Operation" category has the "Send Data", "Clear Output", "Output Format", "Reset Counter", "Clear Input", and "Display Format" menu options. SEE FIGURE 5.25

FIGURE 5.25

5.1.2.6.1 SEND DATA

Transmits data from the output data box. Same as clicking on Send/AutoSend.

5.1.2.6.2 CLEAR OUTPUT

Clears the data from the output data box.

5.1.2.6.3 OUTPUT FORMAT

Toggles the data representation of the output data box to either ASCII characters or Hexadecimal format.

5.1.2.6.4 RESET COUNTER

The bottom status bar displays the TX count and RX count. These counts represent the number of bytes transmitted and received. Reset Counter resets these counts to zero.

5.1.2.6.5 CLEAR INPUT

Clears the data input display box.

5.1.2.6.6 DISPLAY FORMAT

Toggles the data representation of the input display box to either ASCII characters or Hexadecimal format.

5.1.2.7 HELP CATEGORY

The "Help" category is a collection of help related operations. The "Help" category has the "Homepage", "Check Newest Version", and "About AccessPort" menu options. SEE FIGURE 5.26

FIGURE 5.26

5.1.2.7.1 HOMEPAGE

Takes you the SUDT.com website.

5.1.2.7.2 CHECK NEWEST VERSION

Checks to see if this version of AccessPort is up-to-date.

5.1.2.7.3 ABOUT ACCESSPORT

Returns relevant information regarding AccessPort. The version and build numbers can be obtained from this page. SEE FIGURE 5.27

FIGURE 5.27

5.1.3 MAIN FUNCTIONS TOOLBAR

The graphic icon toolbar provides main function icons.

FIGURE 5.28

Initiates the serial port configuration. SEE SECTION 5.1.2.5.3

Switches ports. SEE SECTION 5.1.2.5.1

Transfers a file. SEE SECTION 5.1.2.5.2

Shows predefined data lists as well as echoes transmitted data to the input data box.

Resets the TX and RX counters. SEE SECTION 5.1.2.6.4

Displays "About SUDT AccessPort" screen. SEE SECTION 5.2.7.3

5.1.4 INPUT DISPLAY BOX AND INPUT DATA CONTROL TOOLBAR

The input display box is where the data that is received by AccessPort is displayed. SEE FIGURE 5.29

FIGURE 5.29

On top of the input display box is an icon toolbar with common data input functions. SEE FIGURE 5.30

FIGURE 5.30

Saves the input data to a specified file.

Pauses displaying data on the input data display.

Changes the input data display format to Hex (Hexadecimal).

Changes the input data display format to Char (ASCII Character).

Clears the input data display.

Adds carriage returns/line feeds to the input data display.

5.1.5 OUTPUT DATA BOX & OUTPUT DATA CONTROL TOOLBAR

The output input box is where the data to be transmitted is typed in. The toolbar on topallows you to input data in Hex or Char format, plain text or hex string format and in real time or not. The toolbar also has the SEND / AUTOSEND button. SEE FIGURE 5.31

FIGURE 5.31

5.1.6 BOTTOM STATUS BAR

The bottom status bar shows the handshaking and flow control indicators of the comm status. It also show the TX (transmit) and RX (receive) data counts and serial port settings. SEE FIGURE 5.32

FIGURE 5.32

5.2 MONITOR MODE

The Monitor mode interface will not be covered in this document.

6 APPLICATION EXAMPLES

Two application examples will be presented demonstrating how AccessPort can be used to test our products. The first application is a simple loopback test of a single serial port or serial device. The second application demonstrates the data communication between two serial ports or serial devices. In both examples the terminal modes will be used.

6.1 APPLICATION 1 –SINGLE SERIAL PORT LOOPBACK

A single port or device loopback test is a very useful way of determining whether a serial port, attached device, or converter is functioning properly. A loopback test can be performed on aserial RS232 port or device by connecting TX and RX (pins 2 and 3) together. A loopback test can only be performed on other full duplex (simultaneous bidirectional serial devices) protocols. By using our RS232 to RS422 converter, a loopback test on RS422 can be performed by connecting TX+ to RX+ and TX- to RX-. In addition, our RS232 to TTL converters can be looped back by connecting TX to RX. Our fiber optic converters can be looped back by connecting fiber in to fiber out. RS485 is half duplex and cannot be single converter loop back tested.

In this example we will be looping back our USB-232-2 USB to RS232 adapter by connecting TX to RX(pin 2 to pin 3) on the DB9 connector. We are using a USB to RS232 adapter because the computer we are using does not have a serial port. We will only need to open one instance of AccessPort since the looped back data transmitted will be received by the same port and be displayed in the output box of the same AccessPort.

6.2 APPLICATION 2 – SERIAL DATA COMMUNICATION

A good way to test data communication through two ports or two converters is performing a two converter loop back with two COM ports of the PC/laptop. Transmitting data from one COM port to other COM port using our converters is a useful test to determine whether the conversion protocol is functioning properly. A test can be performed on two serial RS232 ports by using a null modem adapter/cable in between the serial ports or using our converters as well. Data transfer between two RS485 converters can be performed to test half duplex RS485 with this test method. The same type of test can be used to also test RS422, TTL, Fiber Optic, and Ethernet using our RS232 converters. Some protocols are half duplex (transfer data in one direction a time) while others are full duplex (transfer data in both directions at the same time).

In this example, we will be using two USB-232-2 USB to RS232 adapters and two CON-422-PE9 RS232 to RS422 converters to communicate from one RS232 port to the other. We are using the USB to RS232 adapters because my PC does not have serial ports.SEE FIGURE 6.8

FIGURE 6.8

CONTROL PANEL→HARDWARE AND SOUND→DEVICE MANAGER→PORTS (COM & LPT)- SEE FIGURE 6.9

FIGURE 6.9

FIGURE 6.10

FIGURE 6.11

FIGURE 6.12

FIGURE 6.13

FIGURE 6.14

FIGURE 6.15

FIGURE 6.16

FIGURE 6.17

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