Specifications

Chapter 18. TCP/IP
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[ 3 ] Declare TCP/IP Communications Pathway
Specify the following system settings by using the socket library (SOCKET.FN3):
• Communications device: Spread spectrum communications device
• Link layer: Ethernet
For the setting procedure with the
SOCKET.FN3, refer to Section 18.6, "Socket Library
(SOCKET.FN3)."
Given below is a setting example using
SOCKET.FN3:
iftype% = 2 ’Specify spread spectrum communications device
layermode% = 2 ’Specify Ethernest as a link layer
call "socket.fn3" .fcTSetup iftype%, layermode%, interface%
’Specify communications pathway
’(SOCKET.FN3 function #40)
’Returns value in interface%
’(The returned value will be used in
’[6] and [8].)
[ 4 ] Open Spread Spectrum Communications Device
Use the OPEN "COM3:" statement.
At the opening time, the following will take place:
• Powering up the wireless block
• Performing the self test of the wireless block
• Initializing the wireless block
For the details, refer to Section 17.3, "Spread Spectrum Communications-related Statement."
Given below is an example using the spread spectrum communications-related statement:
hCom3% = 1 ’Specify a file number to be opened
’(The file number will be used also in [9].)
open "COM3:" as #hCom3% ’Open the spread spectrum communications device
’(OPEN "COM3:" statement)