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TruePort I/O
TruePort I/O
You can see a sample API I/O over TruePort program called 
ioapiotp
.c on the CD-ROM.
TruePort/Modbus Combination
If you have a Modbus serial application running on a PC that is connected to a network, you can use 
TruePort as a virtual serial connection to communicate with the IOLAN over the network to access 
I/O data. You also have the option of enabling SSL as a security option to encrypt the data that is 
communicated between the IOLAN and the host machine (SSL/TLS must be configured in the Server 
settings and on the TruePort host).
IOLAN
pe
rl
e
I/O Digital 
Output
PC running a
Modbus Serial
Application/
TruePort
UID: 15
Network
Power
The host running TruePort must be in Modbus/ASCII or Modbus/RTU mode.