https://github.com/arkane-systems/node-red-contrib-offline

https://github.com/arkane-systems/node-red-contrib-offline

Last synced: 2 months ago
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• Host: GitHub
• URL: https://github.com/arkane-systems/node-red-contrib-offline
• Owner: arkane-systems
• License: mit
• Created: 2021-04-28T05:25:43.000Z (about 4 years ago)
• Default Branch: master
• Last Pushed: 2021-04-28T05:26:02.000Z (about 4 years ago)
• Last Synced: 2025-01-16T13:54:36.305Z (4 months ago)
• Language: HTML
• Size: 3.91 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# node-red-contrib-offline

Reports when data has not arrived in a configurable time

You can find source code and more information here:

- GitHub:  https://github.com/clough42/node-red-contrib-offline

- NpmJS:  https://www.npmjs.com/package/node-red-contrib-offline

- Node-Red:  http://flows.nodered.org/node/node-red-contrib-offline

Use this node to monitor a message stream and report if data

does not arrive in a configurable time.  This provides a good way

to tell if a device has gone off-line.

The timer starts on startup and is reset every time a message

arrives.  If the time expires with no data arriving, the most recently received

message is sent to the output.  If no message was ever received, a new message

is sent with the default topic and a payload of "false".

## Settings

- `Name` - The name to display for this node.  Leave blank to use the default.

- `Time` - The allowable gap between messages, in seconds.

If no data arrives before the timer expires, the most recent message (or

a default message) is sent to the output.

## Settings

- `Name` - The name to display for this node.  Leave blank to use the default.

- `Time` - The allowable gap between messages, in seconds.

If no data arrives before the timer expires, the most recent message (or

a default message) is sent to the output.

- `Default Topic` - The topic that will be used to generate a

message on timeout if no packet was ever received.

## Status

While it is running, the node displays its status:

- 'No data' - No messages have been received.

- 'Offline' - The timeout has expired without a message arriving.

- 'OK' - The message source is on-line and messages are being received.