Read Available Hopping Channels - WAGO I/O-SYSTEM 750 Manual

6.3.6.6 Read Available Hopping Channels (GetAvailableChannelMap, 0xD8)
Call up returns information on the status of the environment (i.e., the status of
the wireless medium) for a connection channel. For Bluetooth
available for hopping are indicated. There are 79 channels with 1 MHz avail-
able. The channels are numbered serially from 0 through 78. The frequency of
each channel is based on the channel number:
The WAGO Bluetooth
If individual frequency ranges are recognized as defective (for example, if
other wireless technologies with higher signal strength in this range are send-
ing), the corresponding channels of its own transmission are excluded. This
reduces interference and improves the connection quality for the Bluetooth
network, as well as for the third-party system. A positive side effect is the pos-
sibility of making connections through third-party activity in the 2.4 GHz ISM
band using the list of the channels masked in this manner. The rule of thumb
is: The greater the number of channels available for hopping, the better the
status of the wireless medium.
Conditions
Request
Byte
Arguments
Parameter
MBX_TARGET_TABLE_
AND_INDEX
WAGO-I/O-SYSTEM 750
I/O Modules
Frequency of the channel = 2402 + channel number MHz
®
Mailbox size Operating mode/profile
6 12 18 Config.
- ● ●
7 6 5
2 2 2
0 MBX_GETAVAILABLECHANNELMAP
1 T
2 MBX_TARGET_TABLE_AND_INDEX
Mailbox Command References
module supports AFH (adaptive frequency hopping).
Real-
Ad hoc
time
- ● ●
4 3 2
2 2 2
-
Value Description
Bit 0...3 Table Index
Index 0...6 for WAGO devices of slots 1...7
Index 0...5 for external devices of slots 8...12
Bit 4...7 Target table
"2" for WAGO_DEVICE (slots 1...7)
"1" for EXTERNAL_DEVICE (slots 8...12)
Appendix
®
, the channels
Device role
Save
config.
Master Slave
● ● -
1 0
2 2
• 183
®
Restart
-