WAGO-I/O-SYSTEM 757
Function Description
27
757-801 Bluetooth® Module RS-232
Manual
1.0.0
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Figure 9: WSA to WSA link
You can also configure the WSA so that it automatically restores a radio link
when a connection has been disrupted. In a link to a further WSA, for example,
the device can act as a substitute for an RS-232 wired link.
RS-232 devices with different properties can be connected!
When using two WSAs, RS-232 devices with different RS-232 interface
properties can also be linked with one another. For example, an RS-232 device
with a defined baud rate of 9600 baud can communicate in this case with another
RS-232 device with a defined baud rate of 19200 baud, which would normally not
be possible via a direct RS-232 wired link.
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4.1
Radio Interface
Most of the functions of the WSA require that a radio link exist between it and
other devices in accordance with the
Bluetooth
®
SPP standard.
Refer to the documentation for the external device concerned to learn how a radio
link to the WSA is established from an external device.
You can set up a radio link from the WSA to an SPP-compatible external device
using the AT command interface, or by switching the operating mode.
The WSA offers two SPP services at the
Bluetooth
®
interface: