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2.
Typical Applications of 7188E Series
2.1 RS-232/485/422 Devices Networking
2.1.1 Using Virtual COM Technology
The 7188E1/2/3/4/5/8 are designed for linking RS-232/485/422 device to
Ethernet network. With the help of VxComm utility, the built-in COM port of
7188E can be virtualized to standard COM port of host-PC as follows:
In the above configuration, the Meter-1 is virtualized to become COM3 of
host-PC. Therefore the original program designed for MS-COMM standard can
access meter
without any modification.
Original COM1/2 of
host-PC
COM1/2 of 7188E
is mapped to
COM5/6 of host-PC
COM1/2 of 7188E
is mapped to
COM3/4 of host-PC
7188E Series Hardware User’s Manual, 2004, v2.2, 7MH-016-22 ----- 13