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 Description of Syslog for TAx6xx and PAx6xx Web Sensors

 v1.0 for firmware 11-0-0-0 or higher

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1.  History of changes

    |-----------------------|------------------------|----------------------------------------------------------------|
    | Date                  | Version                | Description of changes                                         |
    |                       |                        |                                                                |
    |-----------------------|------------------------|----------------------------------------------------------------|
    | 2026-03-16            | v1.0                   | Initial revision of the document                               |
    |-----------------------|------------------------|----------------------------------------------------------------|


2.  Description

    TAx6xx and PAx6xx Web Sensors support sending Syslog messages to a configured server. The message format complies 
    with RFC 5424. The default UDP port is 514. There are two types of Syslog messages: system messages and alarm 
    messages. Each class can be enabled separately. Chapter 3 provides a full list of Syslog messages. The directory 
    "code-examples" contains a demo Syslog server implemented in Python. If an IPv6 Syslog server is used, initial 
    Syslog messages related to IPv4 events (for example, IPv4 address assignment) may be lost.


3.  Syslog message tables

3.1 List of System events

    |-----------------------|------------|-----------|----------------------------------------------------------------|
    | Message Class         | Facility   | Severity  | Message                                                        |
    |                       |            |           |                                                                |
    |-----------------------|------------|-----------|----------------------------------------------------------------|
    | Acoustic mute         | 17         | 5         | Mute via modbus                                                |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 17         | 5         | Mute via web                                                   |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 17         | 5         | Mute by button                                                 |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 17         | 5         | Mute via Vision software                                       |
    |-----------------------|------------|-----------|----------------------------------------------------------------|
    | Email                 | 2          | 3         | Email send error ERR_MAIL_CODE                                 |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 2          | 5         | Test email sent successfully                                   |
    |-----------------------|------------|-----------|----------------------------------------------------------------|
    | Web                   | 4          | 5         | User logged in successfully                                    |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 4          | 4         | User login failed                                              |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 4          | 5         | User logged out successfully                                   |
    |-----------------------|------------|-----------|----------------------------------------------------------------|
    | System                | 0          | 5         | WebSensor (fw: 11-x-x-x.xxxx) warm boot                        |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 0          | 5         | WebSensor (fw: 11-x-x-x.xxxx) cold boot                        |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 0          | 5         | Reboot requested                                               |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 0          | 5         | Config re-init requested                                       |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 0          | 5         | New probes detected                                            |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 0          | 5         | All probes cleared                                             |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 0          | 5         | Network re-init requested                                      |
    |-----------------------|------------|-----------|----------------------------------------------------------------|
    | Network               | 16         | 5         | Ethernet link is up                                            |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 16         | 5         | Ethernet link is down                                          |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 16         | 6         | Static IPv4 address assigned                                   |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 16         | 6         | IPv4 address assigned via DHCP                                 |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 16         | 6         | IPv4 address assigned via APIPA                                |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 16         | 6         | Static IPv6 address assigned                                   |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 16         | 6         | IPv6 assigned via SLAAC with backup DNS                        |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 16         | 6         | IPv6 assigned via SLAAC with DNS from DHCPv6                   |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 16         | 6         | IPv6 assigned via DHCPv6                                       |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 16         | 6         | IPv6 assigned via DHCPv6 with backup DNS                       |
    |-----------------------|------------|-----------|----------------------------------------------------------------|


3.2 List of Alarm events

    |-----------------------|------------|-----------|----------------------------------------------------------------|
    | Message Class         | Facility   | Severity  | Message                                                        |
    |                       |            |           |                                                                |
    |-----------------------|------------|-----------|----------------------------------------------------------------|
    | Channel alarm         | 17         | 4         | Alarm X on channel Y activated                                 |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 17         | 5         | Alarm X on channel Y deactivated                               |
    |-----------------------|------------|-----------|----------------------------------------------------------------|
    | System alarm          | 17         | 4         | System alarm activated - measurement error                     |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 17         | 5         | System alarm deactivated - measurement error                   |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 17         | 4         | System alarm activated - configuration error                   |
    |                       |------------|-----------|----------------------------------------------------------------|
    |                       | 17         | 4         | System alarm activated - RTC battery error                     |
    |-----------------------|------------|-----------|----------------------------------------------------------------|

