1 watchdog error log, 2 module information registers, 3 expansion i/o error registers – Weidmuller WI-I/O-9-U2: Wireless Mesh I/O & Gateway User Manual V1.2.2 User Manual

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5.1.1 Watchdog Error Log

The module uses a number of different processes to control aspects of the internal
workings of the module, i.e. Radio operation, I/O functionality, AODV communications,
Modbus Communications, etc. Each process runs independent of each other and can
interact with the other processes to provide a robust wireless I/O product.

All processes are monitored by an internal ‘Watchdog’. If one of the processes has a
problem and stops running the Watchdog will identify this and restart that process. The
watchdog also creates a text file showing which process had the problem. These text
file can be found

in a directory called ”dog” off the main root IP address of the module,

i.e. http://XXX.XXX.XXX.XXX/dog/, where XXX.XXX.XXX.XXX is the IP address of the
module.

The following table shows the different watchdog processes and what they represent.

the “dog” directory continues to show text files it could indicates that there is some

sort of problem with the module or its configuration. Please save the modules
configuration as per Section 4.4.7

“System Tools Web page” and the list of watchdog

files and contact Weidmuller Support.

5.1.2 Module Information Registers

There are registers available in the module that show a number of the modules
characteristics, i.e. Serial Number, Firmware version, etc.

This information is available on the main Web page of the module however having the
information available in registers allows a Host system to read the values via Modbus
(provided the Modbus has been activated)

5.1.3 Expansion I/O Error Registers

The WI-I/O 9-U2 has a number of diagnostics registers that are allocated for each
Expansion I/O module that will indicate the module type, error counts, error codes, etc.

Watchdog processes

A00

Internal process monitor

A01

I/O Processing application

A02

Failsafe Manager application

A03

Modbus application

A04

I/O Mapping application

A06

AODV Meshing protocol application

A07

Data Logging Application

A15

Warm restart backup