ConfigureTerminator(device,terminator) defines the terminator for both read and write communications with the specified serial port.Allowed terminator values are 'LF' (default), 'CR', 'CR/LF', and integer values from 0 to 255. DiscardNull Gets or sets whether null characters are ignored when transmitted between the port and the receive buffer. DsrHolding Gets the state of the data set ready (DSR) signal. DtrEnable Gets or sets the enabling of DTR during serial communication. Encoding Gets or sets the character encoding for pre- and post-transmission conversion of text. Jan 12, 2004 Web resources about - Serial Port Communication - asp.net.web-forms Communication - Wikipedia, the free encyclopedia) is the activity of conveying information through the exchange of ideas, feelings, intentions, attitudes, expectations, perceptions or commands. VoIP Business, VoIP Technology, VoIP Security - Fierce Enterprise Communications. This is a continuance tutorial video about Visual C# serial communication. This is very useful when you want to interface your PC to external devices.
Information regarding the communications features of specific Vision models is available from your local Unitronics distributor, or [email protected].
Below is a general description of Vision communication features. For details, refer to the Vision Communications manual.
Com Ports
Serial | All Vision controllers comprise RS232 serial communication ports. RS232/RS485 adaptors are available by separate order. Certain models, such as the Vision120, support both RS232 and RS485. For details on communications hardware settings, refer to the User Guides and documentation supplied with relevant models. |
USB | USB ports support project and OS download only, and are built into ERROR: Variable (USBprogramming) is undefined. controllers. Before you can use it, = 4 && typeof(BSPSPopupOnMouseOver) 'function') BSPSPopupOnMouseOver(event);'>you must install the USB driver to support USB function; this is available from Connection> Communication PC Settings> USB tab. Note that COM port 1 function is suspended when the USB port is physically connected to the PC. |
CANbus | Separate CANbus ports are built into specific controller models. |
Ethernet | Ethernet ports are available by separate order. Note that the Vision700 series includes a built-in Ethernet port. |
Note ♦ | All ports can be used simultaneously, with the exception of the USB port in ERROR: Variable (USBprogramming) is undefined. . For example, a single controller may use one serial port to send messages to a modem via RS232, another port to communicate with a frequency converter, while the controller engages in communications via its CANbus port. |
♦ | Standard programming cables do not provide connection points for pins 1 and 6. |
Initializing COM ports
- Serial and CANbus communication ports must be initialized in your control program using the COM Init FB, located on the FB's menu.
- The Ethernet port must be initialized using the Ethernet Card Init FB, located under Ethernet on the FB's menu.
Data Communications Options
Data Communications include all of the options shown below:
- GPRS
Communication FBs
- SMS messaging
- GPRS
- MODBUS (serial)
- MODBUS IP (Ethernet)
- Communications Protocol FB
PC-Vision communications
SD Card Remote Access
SD Card Explorer
Re: Serial port communication in asp.net
Jun 22, 2009 04:14 AM|gerrylowry|LINK
Hello Suthakar ... no offense meant: yours is a bit of a strange question. Let me explain:
ASP.NET (MVC or WebForms) is for Internet and Intranet applications.
serial port communications are generally for talking to attached devices: modems, various hardware that can interface to a computer (example, a gasoline fuel pump's computer captures quantity and fuel card information that can be input and sent to an accounting package).
So, I'm curious as to the nature of your application.
In answer to your question, it depends on the capabilities the device with which you happen to be communicating. You need to give the documentation for that device and then determine what you options are with it.
Example: likely most modern modems can send half duplex and full duplex. Which mode is better likely depends more on the nature of the developer's application than on the merits of half duplex versus full duplex.
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Rule of thumb (general): if the developer needs to make decisions based on input line content, likely character input is preferred; OTOH, if the developer is processing input records, likely line based input is preferred.
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To better respond to your question, imo, you need to give us many more details. Sorry, your question is just way too general. You need to clarify it for the rest of us.
Serial Port Communication Asp Net Worth
Regards,
Gerry (Lowry)
Gerry (Lowry)