Electronics Network Card User Manual

www.cooperbussmann.com/BussmannWirelessResources

Cooper Bussmann Wireless Ethernet & Device Server BU-945U-E 802.11 DSSS User Manual

3A1582Rev1.6

4.4 Internal Diagnostic 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 3.16 “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

Description

5000 Both Total number Associated Stations

5001 Both Current Radio Channel. See section 3.2 “Selecting a Channel” for channel details

5002 Both Number Wireless Interfaces configured, includes Virtual Interfaces – wi1-wi10

5010 Both Wireless Adaptor (wi0) - Link Status

5011 Both Wireless Adaptor (wi0) - Link Status Inverted

5012 Both Wireless Adaptor (wi0) - Number Associated Stations for this interface

5013 AP Only Wireless Adaptor (wi0) - Points to the starting register of the AP's 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.

5014 STA Only Wireless Adaptor (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 Adaptor (wi0) - Transmit Data Rate from the Access Point

5016 STA Only Wireless Adaptor (wi0) - MAC Address of the Access Point

5020-5026 As per 5010-5016 As per registers 5010-5016 but for the next Wireless Adaptor (wi1)

5030-5036 As per 5010-5016 As per registers 5010-5016 but for the next Wireless Adaptor (wi2)

5040-5046 As per 5010-5016 As per registers 5010-5016 but for the next Wireless Adaptor (wi3)

...etc. As per 5010-5016 As per registers 5010-5016 but for the next Wireless Adaptor (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)