24
Function Description
WAGO-I/O-SYSTEM 750
750-921
Bluetooth
®
Adapter
Manual
Version 2.0.1, applicable from FW Version 02
Table 10: Operating Modes
Power
Interruptions Operating Modes
-
I Normal operation
The device is operated normally. The previously configured
settings are used.
1 x
II Preparation for switching of operating mode
Automatic switching to normal operation. This mode serves
only to protect against accidental activation of mode
switching, e.g. during fluctuations in the power supply.
2 x
II
I
“AutoConnect”
The device attempts to connect to another device of the same
kind automatically. When successful, the configuration of
both devices is modified, so that the connection is restored
automatically among other things after a power failure in the
future.
For this purpose, the following settings are adjusted:
• Destination address for the outbound connection
• Destination port for the outbound connection
• Application of the target device in the list of allowed
devices
• Enable automatic reconnect (on one of the 2 WSAs only)
3 x
IV Reset to factory settings
All functionally relevant device settings (including the baud
rate of the wired serial interface) are reset to their original
values. The device then restarts automatically.
The specific LED flashing patterns for the set modes are given in the section
“Device Description”> … >“Display Elements.”
4.5
Security Settings for the Radio Communications
Interface
The device supports all security mechanisms of Version 2.1 of the
Bluetooth
®
standard. To adjust security-related behavior, certain AT commands are also
available (e.g. commands of the “AT BTSEC” group).
Radio link only with correct security settings!
The
Bluetooth
®
standard attaches great importance to security. Consequently, a
radio link may only be set up when the security settings for the devices to be
linked are compatible and correct.
4.5.1
Visibility and Connectivity
Bluetooth
®
devices can be used to search for devices that are within range. In
addition, device names and available services of the devices found can be queried.