It is possible to "round-robin" over the Serial port to get the data from the PLCs one at a time. While most applications can benefit from the methods discussed here, each application is unique and may not see the full performance gains described.įor example, take a scenario where users have an application that needs to gather data from four PLCs but there is only one COM port on the PC. There is no additional cost in KEPServerEX to use additional serial ports up to 100 ports are supported. Users looking to buy a multi-port converter for their application can get direct support on Edgeport products. The Edgeport 1, 1i, and 4s USB-to-Serial converters have been tested with the KEPServerEX communications platform. For otherSerial communications converters, refer to Kepware's Driver List for KEPServerEX. Users can configure multiple Serial communication ports using a hardware solution via Edgeport's USB-to-Serial Converters. To access the shared serial port setting, open the Communications tab located in Channel Properties
This functionality is supported by select drivers.
Note: KEPServerEX supports Serial COM Port Sharing, where a single COM port can be shared among different Serial devices that take turns communicating over the connection. In either case, the application needs to access multiple devices from the PC's single serial port. Some devices support the ability to be multi-dropped via RS-422 or RS-485, while others may only support a single point-to-point connection via RS-232. In many industrial applications, the best way to access process information is through the device's Serial port.
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