Historical Storage

Overview

When adding a gateway, users can choose whether to activate Cloud SCADA. After activation, the gateway can bind device data points and support visual SCADA configuration. Existing gateways receive a default 30-day trial. To obtain permanent activation, contact our sales or business team.

License Types and Trial Rules

License Type	Description	Expiration
trial	Activates Cloud SCADA with a default 30-day trial	Calculated at creation and expires automatically
permanent	Permanent license with no time limit	Never expires

Key Rules

• A trial can be configured only once, when the gateway is created.
• Trial renewal is not supported: after a trial expires, it cannot be reactivated for another 30 days through an edit operation.
• Switching to a permanent license: edit the gateway and change the license type from trial to permanent. The expiration status will then become permanent.
• After the trial expires, SCADA screens no longer receive real-time data, and InfluxDB no longer stores historical data for that gateway. Real-time data APIs are not affected.

Historical Data Storage Rules

Data-Point Storage Configuration

• Users can configure whether historical data is stored for individual data points under a gateway through the store field.
• No more than 100 data points can be saved in a single operation. The front end displays an error when more than 100 are selected.
• The trial storage period is 14 days.
• The storage period for a permanently activated gateway is one year, based on the project data-bucket retention period.

Data Behavior After Expiration

Scenario	Behavior
Trial expired	SCADA data push stops, InfluxDB storage stops, and real-time data APIs remain unaffected
Permanent license	Data is stored normally with no license expiration

Historical Data-Point Storage Limit

• Per-operation limit: 100 data points (tagIds array length ≤ 100)
• When the limit is exceeded, the API returns error code 400 with the message: The number of tagIds cannot exceed 100