TAS-HMITalk is an ActiveX component that was designed to be the core part of HMI/SCADA systems developed with Visual Basic, Delphi or other visual developing tools where you need to build factory automation or any other supervisory & control applications that require to interface with installed field equipment through TCP/IP or RS-232/422/485 communication. TAS-HMITalk embeds serial communication capabilities with hundreds of industrial I/O devices directly. It comes with several built-in I/O device drivers which handle different protocols required to be able to talk with popular PLCs, RTUs, power meters, loop controllers, scales and many other industry-specific devices. Besides, HMITalk can be expanded to support new protocol drivers and I/O devices.

TAS-HMITalk comes with a powerful communication engine that automatically manages the polling cycle of all the devices connected. It allows you to establish a particular scanning time and particular priority for each data packet requested or sent. It dispatches many different “events” to your application when changes in the data received or some other known situations are detected.

Each HMITalk object that you include in you application can manage the reading or writting of a data packet coming from or going to the external field equipment. Data packets can contain anywhere from a single I/O point to 1,000 points each. A “point” represents a signal, variable, memory position, register, timer, counter, status bit, etc., which resides somewhere in the external device and can be manipulated by your application.

TAS-HMITalk functionality

• Designed to run under Windows 9x/NT/2000/Me/XP/Vista.
• Provides TCP/IP and serial COM ports support. 
• Provides a communication engine to automate data-acquisition from field equipment.
• Includes various priority levels allowing different levels of vigilance over any or every I/O point and it also includes manual and automatic triggering mechanisms to send outputs to the field. 
• Provides several ready-to-use protocol drivers. 
• Provides data caches with recent history to be plotted with LineChart. 
• Provides a fully-configurable graphical interface through which the communication flow can be monitored, featuring indicator leds, boxes with the messages exchanged and a status box, all of which are continuously updated as long as the communication is active.
• Communication messages can be logged to ASCII files for debugging purposes. 
• It can be inserted into any ActiveX-compatible OLE-Control Container, such as Microsoft Visual Basic 5.0/6.0/.Net, Excel 97/2000/XP/Vista, Borland Delphi 6/7 and others.
• Each control instance can manage up to 1000 I/O points. 
• Each control can use of any of the 255 COM ports addressed by Windows platforms. 
• Several controls using different protocols, baudrate, parity, etc., can share the same communication port.

Possible configurations