Industrial data tooling

Get the data out of your plant historian.

GW Automation builds self-contained Windows software interfaces for industrial control systems. No cloud accounts, no per-tag pricing model, security prioritsed — install an MSI on the PC that hosts your information, and extract history, reports and dashboards out of it, through secure encrypted communication.

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HistorianLink — export job

[JOB ] connect opc.tcp://ph-server:4897 Basic256Sha256/SignAndEncrypt [PROBE ] certificate TRUSTED · endpoints 2 · server ready [BROWSE] Plant/Line1 · Plant/Line2 · Plant/Utilities 1,284 tags cached [HIST ] read 2026-07-24 06:00 → 2026-07-31 06:00 · resample 1m · 42 tags [HIST ] ████████████████████████████ 100% 423,360 rows [QUAL ] Good 421,902 · Uncertain 1,203 · Bad 255 [EXPORT] historian_2026-07-24_to_2026-07-31_1m.xlsx 18.4 MB [DONE ] elapsed 00:01:47 · written to \\reports\weekly\

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HistorianLink

OPC UA history · reports · dashboards · alarms

Connects as an OPC UA client to a plant historian — Siemens Process Historian, WinCC, or any compliant UA server — and turns its archive into something you can actually use. Browse the tag tree, pull raw history, resample it, and export to Excel or CSV with real quality codes attached.

History export jobs — raw reads resampled to any interval, millisecond timestamps, plain-English quality column, UTC or local toggle, metadata header block.
Scheduled reports — repeatable report definitions written to .xlsx, last five runs kept per report.
Live dashboards — tiles with current value and sparkline, polled only while someone is watching.
Alarm history — a satellite agent reads the WinCC message archive over OLE DB, the supported route when UA returns BadNotImplemented for event history.
Trend analyser — multi-tag chart with severity colouring, presets and a scrubbing ruler.
Three access levels — admin on loopback, engineer over TLS, read-only viewer.
Device trust — allow-list connections by IP, or IP + MAC with ARP verification.
Audit trail — logins, exports, config changes; no credentials, no stack traces.

Request a trial Technical specs

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Screenshot

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HistorianLink trend analyser showing multiple tags over a seven day window

Trend analyser — 1,200×750 recommended

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Screenshot

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Live dashboard

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Screenshot

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Export job queue

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Screenshot

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Alarm history

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Screenshot

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Scheduled reports

Field trial

OpcDaLink

OPC DA → OPC UA bridge

Sits in front of a legacy OPC DA server, connects to it as a DA client over DCOM, and re-publishes the whole address space as a modern OPC UA server. Point UaExpert, a new SCADA package, or HistorianLink at the UA endpoint and leave the old server exactly as it is.

Full address-space mirror — branches become folders, leaves become variables, item IDs carry through as string NodeIds.
Faithful type mapping — canonical VARIANT types to UA variant types, DA quality words to UA status codes, item timestamps as source timestamps.
Read and write — access rights map to node writability, with writes passed back through to DA.
Correct COM threading — a dedicated message-pumped STA thread, because that is the only way DA data-change callbacks ever arrive.
Big-server mode — feed it a tag list file and skip browsing entirely on servers with tens of thousands of items.
Built-in diagnostics — connection state and item count exposed as UA nodes, plus a web admin page.

Join the field trial Technical specs

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Screenshot

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OpcDaLink admin overview showing DA connection status and mirrored tag count

Admin overview — 1,200×750 recommended

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Screenshot

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Address space

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Screenshot

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UaExpert connected

  ┌──────────────┐    DCOM    ┌────────────────────────────────────┐   opc.tcp   ┌────────────┐
  │  OPC DA      │◄──────────►│  OpcDaLink service                │◄───────────►│ UA client  │
  │  server      │            │   ┌──────────┐   ┌──────────────┐  │             │ UaExpert,  │
  │  (COM/Win32) │            │   │ DA client│──►│  UA server   │  │             │ SCADA,     │
  └──────────────┘            │   │ STA pump │◄──│ address space│  │             │ Historian- │
                              │   └──────────┘   └──────────────┘  │             │ Link       │
                              │            │                       │             └────────────┘
                              │       ┌────▼─────┐   http          ┌──────────┐
                              │       │ admin UI │◄───────────────►│ browser  │
                              │       └──────────┘                 └──────────┘
                              └────────────────────────────────────┘

Shared platform

Both products are built the same way.

Same installer, same service model, same licensing, same security posture. Learn one, you know both.

01 / SERVICE

Windows service + tray

Runs headless as a service and survives reboots. A tray icon gives operators start, stop and status without opening the admin UI or needing a login.

02 / INTERFACE

Browser-based admin

No client to roll out. The service hosts its own UI on a local port — the same dark, dense, keyboard-friendly interface shown in the screenshots above.

03 / SECURITY

Encrypted config at rest

Credentials and connection settings are encrypted with Windows DPAPI, tied to the machine. Nothing sensitive sits in plain text on disk.

04 / NETWORK

TLS where it matters

Network-facing endpoints run HTTPS with a minimum of TLS 1.2. Admin stays on loopback, where encrypting the traffic would buy nothing.

05 / LICENSING

Fully offline activation

A key tied to your customer ID, validated on the machine. No activation server, no internet, no phone-home — designed for air-gapped plant networks.

06 / DEPLOYMENT

Signed MSI install

A standard MSI your IT team can review, deploy and uninstall cleanly. Silent install supported for managed rollouts.

At a glance

Technical specifications

	HistorianLink	OpcDaLink
Role	OPC UA client	OPC DA client + OPC UA server
Talks to	Process Historian, WinCC, any compliant UA server	Any OPC DA 2.0 / 3.0 server
UA security	Basic256Sha256, Sign or SignAndEncrypt	Configurable; opens with security disabled for first run
Data out	.xlsx, .csv, live dashboard tiles, scheduled reports	Live UA address space, read and write
Alarms	WinCC message archive via OLE DB satellite agent	Not supported — DA carries no alarm interface
User roles	Admin, engineer, viewer	Single admin account
Licence prefix	HLNK-XXXX-XXXX-XXXX-XXXX	DALK-XXXX-XXXX-XXXX-XXXX
Platform	Windows Server 2016+ / Windows 10+	Windows Server 2016+ / Windows 10+
Footprint	Self-contained; no database server required	Self-contained; no database server required

Get in touch

Trials, quotes and pilot installs.

Both products install in minutes on a spare VM. Tell me what historian or DA server you are running and I will send a time-limited key and a short setup note for your specific stack.

Emailhello@gwautomation.com

Trial licence30 days, full feature set, no tag limit

Pilot installRemote session, roughly one hour

LicensingPer machine, perpetual, offline activation

SupportDirect to the developer, no ticket queue

LocationAustralia — remote worldwide

What to include

Historian or DA server make and version
Rough tag count
Whether alarm history is in scope
Any network or air-gap constraints

Email GW Automation

Get the data out of your plant historian.

Two products, one problem.

HistorianLink

OpcDaLink

Both products are built the same way.

Windows service + tray

Browser-based admin

Encrypted config at rest

TLS where it matters

Fully offline activation

Signed MSI install

Technical specifications

Trials, quotes and pilot installs.