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VTB USER GUIDE

customized protocols.

SET_IP

Sets the parameters of TCP/IP protocol.

Hardware NG35,NGMEVO

Syntax

SET_IP(ip as *char, sm as *char, gw as *char)

Parameters

ip IP address of the device

sm subnet mask

gw gateway

Example

Set_ip(“10,0,0,15”,”255,255,255,0”,0) 'IP = 10,0,0,15

'SUBNET = 255,255,255,0

'GATEWAY = nothing

WARNING: This function must be called in the INIT section of the MAIN or PLC TASK.

PXETH_ADD_PROT

Adds a custom protocol to a specific port of TCP/IP. A custom function to process the new protocol must be written

and its pointer must be pass to this function.

Hardware NG35,NGMEVO

Syntax

PXETH_ADD_PROT(port as long, fun as delegate)

Parameters

port TCP port on which the new protocol is added

fun Pointer to the custom process function

Example

Used variables:

fun delegate

Init section of main:

Set_ip(“10,0,0,15”,0,0) 'set IP = 10,0,0,15

fun=my_protocol

pxeth_add_prot(502,fun) 'Add the protocol my_protocol on port 502

'protocol process function

function my_protocol(len as long, buftx as *char) as long

...

endfunction

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Vision VTB-101 Guida Utente Pagina 64