Acksys WLg-DONGLE Guide D'installation Rapide page 18

SERIAL SERVICE TYPE SELECTION
The way you will use the product determines the serial service to activate.
Get help from the information provided on the "BASIC" page, "Serial port"
submenu.
If you are using the MODBUS protocol:
• use the "MODBUS/TCP master" service if the serial port of the product is
tied to the MODBUS master (the supervisor);
• use the "MODBUS/TCP slave" service if the serial port of the product is tied
only to slave devices.
If you want to access a remote serial device in the same manner as a
local port (including control signals):
• usually the "Virtual COM (VIP)" service on the device side and a COM port
redirector like VIP on the computer will do that.
If you want to exchange serial data (no control signals) between two or
more devices through the network:
• use the « UDP raw port server » service on all the serial attachments
involved;
• if you have only two devices, and not losing data is more important than
speed and network bandwidth, you must use « raw TCP server » on one
side, « raw TCP client » on the other side.
If you want to write a SOCKET application to access remote devices:
• use "Virtual COM (VIP)" if you must configure control signals remotely;
• use « raw TCP server » to handle unrelated devices;
• use « UDP raw port server » to broadcast to several devices at the same
time.
If you want a remote serial device to call into your application:
• use « raw TCP client ».
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