Reading The Signal Strength For A Connection - WAGO I/O-SYSTEM 750 Manual

192 Appendix
Conditions
Mailbox size
6
●
Request
Byte
0
1
2
Arguments
Parameters
MBX_TARGET_TABLE
_AND_INDEX
Response
Byte
0
1
2
Return values
Parameters
MBX_RESULT
MBX_LQ_VALUE
*)
750-644 I/O module or Bluetooth
12.3.7.6

Reading the Signal Strength for a Connection

GetLinkSignalStrength, 0xD7
The RSSI value displays possible overrides of the Bluetooth
"0" if the strength of the received signal lies within the tolerance range. If the
received signal is stronger than the upper limiting value of the tolerance range, a
value > "0" is returned. If the received signal is weaker than the lower limiting
value, a value < "0" is returned.
12 18 Config. Real-time Ad-hoc Master Slave
● ● -
7 6
2 2
T
MBX_TARGET_TABLE_AND_INDEX
Value
Bit 0 ... 3
Bit 4 ... 7
7 6
2 2
T
Value
MBX_CMD_OUT_OF_RANGE
MBX_CMD_GENERAL_ERROR The device
MBX_CMD_INVALID_ARG
[0 ... 255]
®
SPP device
750-644 Bluetooth
Mode Device role
● ●
5 4 3
2 2 2
MBX_GETLINKQUALITY
-
Description
Table index
Index 0 ... 6 for 750-644 I/O modules of slots 1 ... 7
Index 0 ... 5 for Bluetooth
8 ... 12
Target table
"2" for WAGO_DEVICE (slots 1 ... 7)
"1" for EXTERNAL_DEVICE (slots 8 ... 12)
5 4 3
2 2 2
MBX_GETLINKQUALITY
MBX_RESULT
MBX_LQ_VALUE
Description
The index used is too large.
The device
valid target table was selected.
Value of the connection quality for the
requested connection.
Version 2.0.0, valid from FW/HW Version 03/03
WAGO-I/O-SYSTEM 750
®
RF-Transceiver
Save
config.
● ● -
2 1
2 2
®
SPP devices of slots
2 1
2 2
*)
is not connected.
*)
is not connected or no
®
receiver. It returns
Reboot
-
0
2
0
2
Manual