7
Serial/Ethernet/USB Communication (SCOM) Interface
IND100084-17
Illustration: Addressed Message
In the scenario that user computer sends out the message to specific address, the unit which owns the matching
address will respond immediately, while the other keep silent.
Ethernet Interface Configuration
The Ethernet/LAN/Network interface are selected by the OSD menu. The configuration is defined as follows:
Ethernet
One computer controls units via Automatic IP or Fixed IP through port 10001. IP address
for the computer must be on the same subnet as the internal set IP of the unit. The local
software firewall on computer, router or network system must accept
communication in/out on port 10001 (open port).
The SCOM message contained in TCP is the same as the one used in RS232/485/422.
Check the section later in this manual “C# / Pseudo Ethernet/TCP Code example”.
Cables
Serial Mode: A cable with an overall shield terminated at the back shell should be used.
Ethernet Mode: A CAT-5, CAT-6 cable capable of 10/100/1000Mbps bandwidth transmissions.
USB Mode: A USB Type A-A (male-male) cable, less than 5meters is recommended.
Electrical Interface
Electrical signals shall conform to RS-485, RS-422, RS-232, USB or Ethernet standards. Only Receive Data,
Transmit Data, and Signal Ground are used. The same conditions apply for both Serial mode 4-wire (Full Duplex) and
2-wire (Half Duplex), and will just be referred to as RS-485 in this document. Hardware handshake is only supported
by loopback handshake for RS-232.
