PDL drivers
PDL (Programmable Driver Language) drivers manage byte-stream oriented protocols and require PDL/Tcl code to parse incoming data and prepare outgoing data for transmission.
PDL supports asynchronous (PDL Async) and TCP/IP terminal connections. Each must have unique configuration information. After a PDL connection is established, PDLs act the same. Therefore, use the same PDL/Tcl code to manage different connections, independent of the medium.
PDL driver configuration
All PDL drivers are configured with the name of the PDL used to control the connection.
PDL drivers enable the customization of the behavior of a communications interface using the named base protocol. With it, you can add functions, such as defining start and stop characters to bound messages. You can also calculate and add a checksum to a message.