User`s manual

NPort S8000 Series Basic Settings and Device Server Configuration
5-9
Real COM Mode
Port Settings
Max connection
Setting Factory Default Necessity
1, 2, 3, 4, 5, 6, 7, 8 1 Required
This field is used if you need to receive data from different hosts simultaneously. When set to 1, only one
specific host can access this port on the NPort S8000, and the Real COM driver on that host will have full control
over the port. When set to 2 or greater, the Real COM drivers for up to the specified number of hosts may open
this port at the same time. When multiple hosts’ Real COM drivers open the port at the same time, the COM
driver only provides a pure data tunnel—no control capability provided. The serial port parameters will use
firmware settings instead of your application program (AP) settings.
Application software that is based on the COM driver will receive a driver response of “success” when the
software uses any of the Win32 API functions. The firmware will only send data back to the driver on the host.