Modemtest and Hs Xmodem C Source Library Software for Windows

Virtual Null Modem
$74 - AGG Software

Null-modem cable is basically used for communication of two RS-232 DTE devices with each other. To create null-modem connection between the devices you need to use two computers or two serial ports of a single computer connected with null-modem cable. The both methods described above are expensive and difficult because of many reasons. The most reliable way to create null-modem connection is using of virtual serial ports emulated by virtual serial port driver and null-modem cable. Why do you need to emulate serial ports and null-modem connection? There are few main reasons to do it. Firstly, you don't need to have two computers connected with real null-modem cable. Secondly, there?s no need in a single PC with several free serial ports and additional multi serial port devices which are expensive and bulky. To emulate null-modem connection Virtual Null Modem can be effectively used. The program emulates one or more couples of RS-232 serial ports connected via virtual null-modem cable. It is possible to create the unlimited couples of virtual serial ports on a single PC and connect them in any sequence using virtual null-modem cable. Usually you need to use virtual null-modem when you have two applications to be connected via serial ports. In contrast to ordinary connection you do not need any additional hardware (computers, physical serial ports, cables) to perform it. Virtual null-modem allows user emulate virtual null modem connection and run the two applications simultaneously on the same computer. Moreover, it is possible to emulate real-world situations by adding some errors to the data exchange which may occur during the physical null-modem connection. Owing to its features set Virtual Null Modem can sufficiently ease the work of software developers and testers occupied in the field of industrial automation. Furthermore, the program may also be useful in the reverse engineering as well as in educational needs. So go ahead and download FREE trial version now!

---

---

Mobdus Constructor
$50 - KurySoft

Using Modbus Constructor you can quickly create a data management model for any of your Modbus devices. Unlike other available solutions on the market which provide displaying data as columns of abstract numbers of the same type, Modbus Constructor represents each data element exactly as you need. You may define type, format or scale independently. This makes them easy to read and analyze.
In Modbus Constructor you can work with integer, long, float, double, or byte data types. Integer types may be represented as signed, unsigned, HEX or binary. The same register can be represented in various ways. For example, if there are two adjacent registers that contain long numbers, each of these registers can be given additional data fields in which their content will be represented as HEX or unsigned integer.
Data fields corresponding to your data elements (registers or discreet elements) can be arranged to your liking inside the project form window. You can specify size, color, font and caption for each field.
The discreet elements occupying a continuous addresses domain can share the same field, which makes them easier to read and saves time.
In Modbus Constructor you can setup any register data field to perform a linear transformation to convert the internal units into units of any system. For example, if a register contains pressure in mA, i.e. the device receives data from a pressure detector equipped with a current output, the resulting value can be converted to kgf/cm2 or lb/in2.
Modbus Constructor supports automatic requests for all supported functions (01, 02, 03, 04, 05, 06, 15, 16, 22, 23) with individual periods for each one.
You can setup requests to be executed via menus or dialogs. This is a convenient way of setting up control commands, changing parameters and test requests. Any project may be used for querying a device in a Master mode or simulating it in a Slave mode. For the Slave mode you may additionally include a data modification procedure operating according.

---

---

RemodelCost Estimator for Excel
$55 - CPR International, Inc.

Discover convenience and time-savings while increasing your bidding success.
Remodel Construction Cost Estimating System for Excel. Designed specifically for home remodelers, builders, cost estimators and architects. RemodelCOST Estimator contains extensive industry standard user-modifiable unit cost data for all cost categories covering remodel construction as well as local city indexes that automatically adjusts costs for local geographic area. RemodelCOST Estimator instantly creates user-modifiable, on-screen or printed estimate reports including price quotation. Use RemodelCOST Estimator as an estimating or sales tool to save time, improve accuracy and achieve greater success.
RemodelCOST Estimator is designed and developed in the USA by CPR International, Inc., a leading provider of cost estimating software tools and cost data for the construction industry since 1986. Use RemodelCOST Estimator with confidence and profit!

---

HS XMODEM C Source Library
$0 - Hillstone Software

HS XMODEM is a software library in C (supplied with full source code) that provides a programmer with the off-the-shelf support for XMODEM protocol data transfer capability. Support for both sender and receiver are provided. Other features include 1024 block size vs 128, CRC vs checksum, configurable timers and retries

* HOW IT WORKS:
When user application initlialises HsXmodem library, it provides interface callbacks for the services used by Xmodem protocol module: timer management, serial transmission and reception, memory management, event callbacks. This architecture makes it easy to port Xmodem protocol module to any environment

Xmodem module handles all protocol information flow, error recovery, acknowledgements, timeouts and so on. When it is appropriate to send next block of data Hs Xmodem will get next memory block from user application. Similarly, when data has been received Hs Xmodem module will get the next block of memory from user application to store data into

As a backup or an alternative to TFTP, Xmodem is often used in embedded devices and appliances for the purpose of software or configuration upgrade or retrieval.

* FEATURES:
- Xmodem Sender and Receiver
- 128 and 1024 block size
- Checksum and CRC option
- Configurable timers
- Configurable number of retries

* HOW TO BUY HS XMODEM LIBRARY:
You can purchase the library online using credit card payment at:
xmodem_buy.htm
The library currently costs EUR 99.00 for unlimited user license. Once the purchase is made you will receive download link by email to download full product deliverables, which include:

- HS XMODEM library binaries. (Win32 static library)
- HS XMODEM library full source code in C with MS Visual C project workspace
- HS XMODEM Demo Application binaries, full source code and MS Visual C project workspace.
- HS XMODEM library user manual, which documents in detail complete library API.

---

Virtual Modem
$199.95 - FabulaTech, Inc.

There are many old data-centric applications that, for historical reasons, use direct modem connections to exchange data between Client and Server. Nowadays, local and global TCP/IP networks have made the direct modem connection obsolete.

Here's why: When you use a direct modem connection, you need to have a physical modem installed on each PC that needs to exchange data. You also must use a physical phone line. This makes the line busy and may even be costly, if long distance calls are required. Modem transfers are also not secure. A hacker doesn't even need to have an access to your phone line. Your data can be easily intercepted with a remote phone line scanner. In a TCP/IP network, on the contrary, you can use the power of a VPN (Virtual Private Networking), SSH or any other secure tunnel to ensure privacy and security.

There are a lot of reasons to move from a direct modem connection to TCP/IP networking. But, how can you do this without investing thousands into new software? Virtual Modem from FabulaTech provides a cheap and effective solution. This program creates virtual modems that use your local network or the Internet instead of a physical phone line.

How does it work? The virtual modems are accessible to all the applications that work through a direct modem connection. Setup is no different from setting up a physical modem. You simply select a virtual COM port in your communication application settings. The application can control the virtual modem directly by sending AT commands or with TAPI (MS Windows Telephony API). Thus, Virtual Modem should work out-of-the-box for all your communication programs.

One of the very useful Virtual Modem features is its "Address Book". The Address Book allows you to transparently translate phone numbers into IP addresses. You don't even have to change the phone numbers in your communication programs. Just put them into your Address Book.

---

Altova UModel
$189 - Altova, Inc.

Altova UModel 2008 Enterprise Edition is the starting point for successful software development. Utilize UModel to create and interpret software designs via the power of the UML 2.1 standard. Draw up your application designs and generate Java, C#, or Visual Basic .NET code from your models, or reverse engineer existing programs into clear, accurate UML diagrams to quickly comprehend your software architecture. You can even amend your code or UML models and complete the round trip by automatically updating diagrams or regenerating code. Either way UModel lets you keep your projects synchronized and up to date. UModel supports all 13 UML 2.1.1 diagram types and adds a unique, new diagram for modeling XML Schemas in UML. A project documentation feature lets you generate custom documentation from your projects in HTML, Word, and RTF. Hyperlinking from UML diagrams to other diagrams, external files, or Web sites is also supported. UModel 2008 Enterprise Edition integrates with Visual Studio and Eclipse, automatically synchronizing UML diagrams as source code is edited in these popular IDEs. What's more, UModel supports the XMI 2.1 interchange specification, allowing you to open and edit models created in more cumbersome or expensive UML tools. Until recently UML was out of reach to the majority of developers due to the relative high cost and complexity of earlier tools, but UModel is so cost effective and user friendly getting started with UML has never been easier! Its rich visual interface and superior usability features help level the UML learning curve, allowing developers of all levels to quickly leverage UML. UModel takes the mystery out of UML with context sensitive entry helpers, syntax coloring, cascading styles, customizable design elements, multiple layout views, unlimited undo/redo, and many more usability features. UModel is the simple, cost-effective way to draw on UML! Download Altova UModel 2008 Enterprise Edition today, and try it free for 30 days.

---