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Triangle MicroWorks, Inc.

Modbus Source Code Library

Type:  Software - Programming
Description:  Triangle MicroWorks (TMW) Source Code Libraries for DNP3, Modbus, and IEC 60870-5 are used by equipment vendors to cost-effectively implement these industry standard communication protocols directly in the target hardware. TMW's experience in developing communication protocol Source Code Libraries can shorten the time required to support these protocols, while allowing your engineers to focus on the company proprietary aspects of the product. Purchase includes one year of Maintenance and Enhancement Plan (additional years may be purchased), which provide support via e-mail, telephone or fax. Support includes assistance integrating the Source Code Library into your product as well as assistance troubleshooting any communications problems that may occur in the field. TMW's Communication Protocol Software Libraries are delivered in ANSI Standard C Source Code. They are designed to be both processor and operating system independent. Easy-to-use function based API will allow you to implement multiple combinations of Source Code Libraries on a single device by using many common utility files and conserving code space.
Connectivity:  Modbus, Modbus TCP/IP
Features:  Easy installation through "Triangle" Source Code Library to Target Application interface (see Design Details for Implementation and Modbus Technical Details, available on TMW web site); simple configuration for byte-order: most-significant-first (Motorola) or least-significant-first (Intel); extensive, built-in (but removable) diagnostics including a protocol analyzer used to visually decipher protocol messages -- the diagnostic and analyzer strings can be directed to any target system display device, even a serial port or RAM buffer; records communication protocol errors such as "Unsupported function code", "Data base errors", "Address range errors", "Exception response, FC = xxx, Exception Code = xxx"; no royalty fees per unit sold; typical product integration times are less than 3 weeks.
Specifications:  Conforms to Modbus Application Protocol Specification V1.1; includes technical support for one year (additional years may be purchased); written in ANSI Standard C Source Code, under a strict corporate coding standard; supports any physical communication network including RS 232/485 (for RTU and ASCII), Modbus Plus, and TCP/IP; supports binary data (coils and discrete inputs) and analog data (holding registers and input registers); supports function codes for read, write, and read/write multiple registers.