User Manual

184 • Appendix
Mailbox Command References
WAGO-I/O-SYSTEM 750
I/O Modules
Response
Byte 2
7
2
6
2
5
2
4
2
3
2
2
2
1
2
0
0 MBX_GETAVAILABLECHANNELMAP
1 T MBX_RESULT
2 MBX_AFH_CHANNEL_MAP (LSB)
3 MBX_AFH_CHANNEL_MAP
4 MBX_AFH_CHANNEL_MAP
5 MBX_AFH_CHANNEL_MAP
6 MBX_AFH_CHANNEL_MAP
7 MBX_AFH_CHANNEL_MAP
8 MBX_AFH_CHANNEL_MAP
9 MBX_AFH_CHANNEL_MAP
10 MBX_AFH_CHANNEL_MAP
11 MBX_AFH_CHANNEL_MAP (MSB)
Return values
Parameter Value Description
MBX_RESULT MBX_CMD_OUT_OF_RANGE Too large of an index was used.
MBX_CMD_GENERAL_ERROR Device is not connected
MBX_CMD_INVALID_ARG The device is not connected or no valid
target table was chosen.
MBX_AFH_
CHANNEL_
MAP
Each Bluetooth
®
channel is represented by one bit:
Bit x = 0: channel x is not available for hopping
(because otherwise busy in the wireless medium);
Bit x = 1: channel can be used for channel hopping for the requested
connection.
Channel numbers correspond to the quality rating of the bits:
Bit 0 (bit with the lowest value) in the LSB = channel 0 (2402 MHz)
Bit 1 in the LSB = channel 1 (2403 MHz)
:
Bit 6 in the MSB = channel 78 (2480 MHz)
Bit 7 (bit with the highest value) in the MSB = channel 79 (always 0, does
not exist)