Nternal, Iagnostic, Odbus – Weidmuller WI-MOD-945-E: 900Mhz Wireless Ethernet & Device Server v2.16 User Manual

Page 93: Egisters, Connection information, 9 - internal diagnostic modbus registers

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Weidmuller Wireless Ethernet Modem & Device Server WI-MOD-945-E User Manual

Page 93

www.weidmuller.com

Rev 2.136

4.9 - Internal Diagnostic Modbus Registers

There are a number of internal diagnostic registers that can be accessed via Modbus TCP/RTU that will help with
analysing 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 3.14 -

“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.

Note:

‘wi0’ is the normal default interface. If more interfaces are added by entering in virtual WDS

connections (either Client or AP) in section 3.16 - Repeaters (WDS) then they will take on the next
available interface number i.e. wi1, wi2, etc

Connection Information

Register

Module

Description

5000

Both

Total number Associated Stations

5001

Both

Current Radio Channel. See section 3.1 -

“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. Register 5023,
5033, etc will indicate starting location for each interface.

5014

STA Only

Wireless Adaptor (wi0)

– RSSI & BGND of Rx message from AP e.g.

Hex 5F5D = 5D for RSSI and 5F 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)

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