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Cooper Bussmann BU-245U-E Wireless Ethernet & Device Server User Manual
4.5 Internal Diagnostics Modbus Registers
There are a number of internal diagnostic registers that can be accessed via Modbus TCP/RTU that will help with analyzing and diagnosing the
radio network.To access these register the Modbus Server will need to be enabled and a Modbus Server address will need to be configured
(See 3.20 “Modbus I/O Transfer”for details on how this is done).
After enabling the Modbus Client you can then access the following information by reading the corresponding Modbus Address at the Server ID
address.

Connection Information

Register Module Description
5000 Both Total number Associated Stations
5001 Both Current Radio Channel. See section 3.6 “Radio Configuration” for channel details
5002 Both Number Wireless Interfaces configured, includes Virtual Interfaces – wi1-wi10
5010 Both Wireless Adapter (wi0) - Link Status
5011 Both Wireless Adapter (wi0) - Link Status Inverted
5012 Both Wireless Adapter (wi0) - Number Associated Stations for this interface
5013 AP Only Wireless Adapter (wi0) - Points to the starting register of the APs Station List.
First interface (wi0) will always start at 5200 and dynamically enter data depending on the
number of STA’s. Remaining interfaces (wi1-wi10) will be entered after wi0 data. Register
5023, 5033,etc will indicate starting location for each interface.
5014 STA Only Wireless Adapter (wi0) – RSSI & BGND of Rx message from AP e.g.Hex 5F5D = 5F for RSSI
and 5D for BGND (Convert value from hex to dec and add a “-“ e.g.5F = -95dB)
5015 STA Only Wireless Adapter (wi0) - Transmit Data Rate from the Access Point
5016 STA Only Wireless Adapter (wi0) - MAC Address of the Access Point
5020-5026 As per 5010-5016 As per registers 5010-5016 but for the next Wireless Adapter (wi1)
5030-5036 As per 5010-5016 As per registers 5010-5016 but for the next Wireless Adapter (wi2)
5040-5046 As per 5010-5016 As per registers 5010-5016 but for the next Wireless Adapter (wi3)
...etc. As per 5010-5016 As per registers 5010-5016 but for the next Wireless Adapter (wi10)
5200 AP Only RSSI of the Client (STA)
5201 AP Only Transmit Data Rate to Client (STA)
5202 AP Only MAC address of Client (STA)
...etc. AP Only Dynamic list of STA's Refer to register 5023, 5033,etc for starting register of each wi interface
9999 Both Reset module (enter FFFF to reset module)
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