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This function is useful for servers, where it eliminates the need to close the corresponding virtual port before restarting server or the VSP service. This function allows connecting VSP to the port previously created and opened by the client application. Automatic connection to previously opened port sent in a previous session) that could cause problems. This ensures that the client application does not receive any previously received data (e.g. The option allows to clear Ethernet receive and transmit buffers when the port is opened. Note: The Strict Baudrate Emulation option is only available when connected to HW group devices and with NVT support enabled. Now, it is possible to enable the Strict Baudrate Emulation option in the Settings tab to ensure that VSP communicates with the client SW using the speed that is currently selected for the port. When the buffers in VSP filled up, data started to be thrown away. Otherwise, data were sent to the Ethernet / Internet with the maximum speed possible, often in the 10 Mbps range. Hence, the client SW had to send the data to the serial port using a defined communication speed, or use flow control (handshake). ![]() #Port forward serial number softwareIn the previous version, HW VSP was fully transparent to the client software and did not restrict the communication flow in any way. Firewall dialog control is currently under development. However, on Windows XP SP2/Vista/2003 Server, it is necessary to manually configure the firewall to enable the appropriate communication ports or the entire application (by default Program Files\HW group\HW VSP3s\HW_VSP3s_srv.exe for the single-port version and Program Files\HW group\HW VSP3\HW_VSP3_srv.exe for the multi-port one). Note: From the user point of view, using HW VSP in service mode has many advantages. Furthermore, since service administration requires administrator privileges, securing a VSP against misuse is as simple as not installing the client-side part. However, in order to improve stability, only one user may access the service and change virtual port parameters at a time. Parameters of a VSP running on a remote server can be easily changed from a local PC. Support for Windows 2008 Server is being tested.) In this mode, HW VSP consists of a client-side part (setup GUI) and a server-side part (the service itself). (At this time, HW VSP fully supports Windows 2000 Server and Windows 2003 Server. Running HW VSP as a standalone application requires starting it under a logged-in user and therefore prevents autonomous operation on Windows servers. Running as a NT service / in client-server modeĪbility to run as a service has been the main reason for developing the new version. When using HW VSP together with recommended devices produced by HW group, it is possible to change connection speed, parity, and other communication parameters (as well as to control any digital outputs and inputs) remotely on the fly via the RFC-2217 protocol, thus achieving a true remote serial port behavior. Therefore, the scenario very closely resembles behavior of a real serial port. #Port forward serial number PcUpon receiving RS-232 data, the converter establishes a connection with the PC and passes the data to the virtual COM port. #Port forward serial number driverinvolving GPRS devices), the PC with the HW VSP driver can be set to operate in TCP Server mode, enabling the remote device to initialize the connection by sending any data to the remote port. #Port forward serial number for freeHW Virtual Serial Driver is intended primarily for devices produced by HW group, although it can be used for free as a universal driver that creates a virtual remote serial port, which redirects data to a predefined TCP/IP address and port.
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