5020 Data Collection PC User’s Manual
6-6
System Information Functions
The System Information function retrieves system information about battery power
status.
Communications Functions
Communications functions are used to transmit or receive messages. The following
communications protocols are supported:
•
Serial communications over COM ports
•
Serial communications over IrDA transceivers
•
RF communications over a TCP/IP network
•
RF communications over a UDP Plus network and ADC input.
The communications functions are wrapper functions for:
•
Win32 serial communications API functions
•
IrSock API functions
•
WinSock API functions
•
Intermec emulated WinSock 1.1 UDP Plus API functions
•
Automatic Data Collection functions
File Transfer Functions
File Transfer functions are used to transmit and receive files using the Trivial File
Transfer Protocol (TFTP). The TFTP client ITCTftpClient.DLL is provided as a
Windows DLL on the 5020. ITCTftpClient exposes a COM interface to 5020 programs
and supports file transfers to and from any TFTP Server. ITCTftpClient executes in the
process of the caller.
Virtual Wedge Functions
The Virtual Wedge functions are used to access the virtual wedge configuration on the
5020. The virtual wedge retrieves ADC data from the 5020 and sends it to the keyboard
driver so that the device can receive and interpret the data as keyboard input.
UDP Plus Functions
UDP Plus allows 5020 applications to send data to and receive data from a DCS 300.
The DCS 300 routes the data to and from applications running on a variety of computer
platforms. UDP Plus is designed to work in adverse networking environments, such as
wireless units moving in and out of range, and battery-powered units that power down
during periods of inactivity. UDP Plus offers the guaranteed delivery and permanent
connection of TCP, but using the lower overhead of UDP.
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