39 Chapter 3
3.4.4 Control Mode (USDG Mode)
(Only ADAM-4571 and ADAM-4570 support this function)
In controlling mode, the ADAM-4571/4570 presents a modem interface
to the attached serial device: it accepts AT-style modem commands to
connect / disconnect to other networking device. If you want serial device
running application program to connect/disconnect to different devices
dynamically, you can use controlling mode.
The “Control mode” provides three kinds of modem AT-style commands.
The serial devices can use these commands to control the ADAM-4571/
4570 to connect/disconnect to remote networking device. Thus, intelli-
gent serial devices such as standalone PLC will send /receive data to/from
devices one by one via Ethernet.
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