Phase 3: Network Transmission - Context

Gathered: 2026-03-12 Status: Ready for planning

## Phase Boundary

Automatic CSV data transmission to myvscada server with protocol configuration. User can configure server connection settings (FTP, SCP, SFTP, or WebDAV protocol), system transmits CSV data files automatically, and transmission status is visible in the UI.

## Implementation Decisions

Protocols

Support all four protocols: FTP, SFTP, SCP, WebDAV
Settings already exist (SETT-09) — integrate with existing protocol settings UI

Scheduling

Scheduled transmission at configurable times (e.g., daily at specific hour)
User configures schedule in Settings

Error Handling

Retry 3 times on transmission failure
Log errors for debugging
Show error status in UI

Status Display

Basic status: success/fail with timestamp
Show last transmission result on dashboard

OpenCode's Discretion

Exact schedule default times
Retry interval timing
UI placement of status indicator

Existing Code Insights

Reusable Assets

Existing SETT-09 (Protocol settings) in requirements — build on that
Flask backend already running — add transmission endpoints
Bootstrap 5.3 templates — reuse for status UI

Established Patterns

Socket.IO for real-time updates — can push transmission status
Settings API structure — follow same pattern for transmission config
Touch-optimized UI — same 48px+ touch targets

Integration Points

Protocol settings already exist in Settings UI
File export from Phase 2 — transmit exported tidEDA files
Dashboard can show transmission status indicator

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## Specific Ideas

Transmission scheduled at user-configured times (e.g., 07:00 and 17:00 like tide data)
Files to transmit: tidEDA formatted files from /myvscada/logger

## Deferred Ideas

None — discussion stayed within phase scope

Phase: 03-network-transmission Context gathered: 2026-03-12

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