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Function Description
WAGO-I/O-SYSTEM 757
757-801 Bluetooth® Module RS-232
Manual
1.0.0
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Function Description
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The WSA's primary function is to transmit data between RS-232 and radio
interface. In this function, both WSA's RS-232 and radio interface transmit
received data to the respective other interface.
Figure 8: WSA as media adapter
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The WSA can therefore fulfill the function of a media adapter or of a protocol
converter, and enables RS-232 devices to communicate with SPP devices and vice
versa.
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The WSA can be configured via an AT command interface. This AT command
interface can be used to define settings that enable a radio link to be set up by
external devices. You can also define via this AT command interface that the
WSA is to actively set up a radio link to an external device.
The WSA can be used without previously being configured via the AT command
interface. For this, the WSA can be switched to other special operating modes by
targeted interruption of power supply at specific intervals. In these operating
modes, processes are initiated which adapt the configuration automatically as
required. This includes discovering a further WSA automatically within the
defined range and configuring and establishing a link. A detailed description of
this “AutoConnect” function is given in the section “Operating Modes.”