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Manufacturing · head to head

PROGNOST Systems vs Siemens WinCC Unified

PROGNOST Systems logo

PROGNOST Systems

Manufacturing

SIL 3 rated online monitoring and diagnostics for reciprocating compressors

From
On request
Rated
-
Full reviewWebsite
Siemens WinCC Unified logo

Siemens WinCC Unified

Manufacturing

Siemens web-based HMI and SCADA platform, licensed by PowerTag count inside TIA Portal

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: PROGNOST Systems nothing about price is published, and because the system is instrumented per machine train, there is no per-point comparison that lets a buyer benchmark it against general-purpose condition monitoring.; Siemens WinCC Unified licensing counts PowerTags, and archived tags are licensed separately from displayed tags, so a project that adds historian logging late can breach a tier and trigger an unbudgeted step-up purchase.
  • They diverge on capability: PROGNOST Systems covers Segmented vibration analysis, Siemens WinCC Unified covers TIA Portal engineering.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which PROGNOST Systems and Siemens WinCC Unified actually diverge.

Attributes where PROGNOST Systems and Siemens WinCC Unified differ
AttributePROGNOST SystemsSiemens WinCC Unified
PlatformsWindows, On-premiseWindows, Web, Linux

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Manufacturing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in PROGNOST Systems

  • Segmented vibration analysis
  • Dynamic rod position
  • Online pV diagram
  • Dynamic rod load
  • SIL 3 machine protection
  • Damage pattern library
  • PROGNOST-Predictor
  • Remote expert service

Only in Siemens WinCC Unified

  • TIA Portal engineering
  • HTML5 runtime
  • PowerTag licensing tiers
  • Unified Comfort Panels
  • Parameter Control
  • Performance Insight
  • JavaScript scripting
  • OPC UA server and client

What people use each for

The jobs each tool is most often brought in to do.

PROGNOST Systems

  • A refinery hydrogen recycle compressor where an unplanned trip costs more per day than the monitoring systemnot Siemens WinCC Unified
  • Replacing a separate protection system and a separate condition monitoring system with one SIL 3 rated installationnot Siemens WinCC Unified
  • Gas transmission stations needing valve and rider ring wear diagnosis without opening the machinenot Siemens WinCC Unified
  • A plant moving reciprocating compressors from time-based overhaul to condition-based intervals with evidence a regulator will acceptnot Siemens WinCC Unified

Siemens WinCC Unified

  • A machine builder standardising on S7-1500 who wants HMI screens engineered in the same project as the PLC codenot PROGNOST Systems
  • Replacing a WinCC V7 plant SCADA before the 2027 support cut-off without changing controller vendornot PROGNOST Systems
  • A line supervisory system where operators and supervisors need browser access from tablets with no client software rolloutnot PROGNOST Systems
  • A plant already committed to the TIA Portal toolchain, where the cost of a rival SCADA is the second engineering environment and the second set of skills rather than the licencenot PROGNOST Systems

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

PROGNOST Systems

  • Nothing about price is published, and because the system is instrumented per machine train, there is no per-point comparison that lets a buyer benchmark it against general-purpose condition monitoring.
  • Installation requires proximity probes, rod position sensors and pressure instrumentation on the machine, which usually means a planned outage and mechanical work before any data exists.
  • The value is concentrated in reciprocating compressors; for general rotating equipment across a whole plant it is a far more expensive route than a broad vibration programme.
  • SIL 3 certification brings the configuration into functional safety scope, so changes to thresholds and logic go through management of change rather than being adjusted by a reliability engineer.
  • The company is small and German-based, so response times and spares logistics for remote sites depend on a partner network rather than a global direct service organisation.

Siemens WinCC Unified

  • Licensing counts PowerTags, and archived tags are licensed separately from displayed tags, so a project that adds historian logging late can breach a tier and trigger an unbudgeted step-up purchase.
  • There is no migration tool that converts a WinCC V7 project to Unified, so leaving the classic line before its 2027 support end means rebuilding screens, scripts and alarm configuration by hand.
  • Scripting moved from VBScript to JavaScript, which invalidates the script libraries in-house engineers accumulated over a decade on classic WinCC.
  • It is effectively bound to the Siemens controller stack; connecting Rockwell or Mitsubishi PLCs works through OPC UA but loses the shared tag database that is the main reason to buy it.
  • Three unrelated products share the WinCC name, and buyers who specify WinCC without saying Unified, V7 or OA regularly receive quotes for the wrong platform with different licensing and a different contractor pool.

Pricing, plan by plan

PROGNOST Systems

On request
  • PROGNOST-NT$undefined/year
    • Priced per machine train as an instrumented system
    • Sensors, proximity probes, rod position and pressure instrumentation included in scope
    • Installation typically requires a machine outage for probe fitting

Siemens WinCC Unified

On request
  • WinCC Unified$undefined/year
    • Engineering licence per seat within TIA Portal
    • Runtime licensed in PowerTag tiers, from 100 tags to unlimited
    • Archived tags licensed separately from displayed process tags

Which should you pick?

Choose PROGNOST Systems if

  • You need segmented vibration analysis.
  • You work on Windows, On-premise.
  • You also want dynamic rod position.
PROGNOST Systems review

Choose Siemens WinCC Unified if

  • You need tia portal engineering.
  • You work on Windows, Web, Linux.
  • You also want html5 runtime.
Siemens WinCC Unified review

Questions people ask

Is PROGNOST Systems or Siemens WinCC Unified better?
Neither clearly leads. PROGNOST Systems starts at On request and Siemens WinCC Unified at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, PROGNOST Systems or Siemens WinCC Unified?
PROGNOST Systems starts at On request and Siemens WinCC Unified at On request.
Does PROGNOST Systems or Siemens WinCC Unified run on more platforms?
PROGNOST Systems runs on Windows, On-premise. Siemens WinCC Unified runs on Windows, Web, Linux.
What is PROGNOST Systems best used for?
PROGNOST Systems is most often used for a refinery hydrogen recycle compressor where an unplanned trip costs more per day than the monitoring system, replacing a separate protection system and a separate condition monitoring system with one sil 3 rated installation, gas transmission stations needing valve and rider ring wear diagnosis without opening the machine, a plant moving reciprocating compressors from time-based overhaul to condition-based intervals with evidence a regulator will accept. Of those, a refinery hydrogen recycle compressor where an unplanned trip costs more per day than the monitoring system and replacing a separate protection system and a separate condition monitoring system with one sil 3 rated installation are not what Siemens WinCC Unified is typically brought in for.
What can PROGNOST Systems do that Siemens WinCC Unified cannot?
PROGNOST Systems covers Segmented vibration analysis, Dynamic rod position, Online pV diagram, Dynamic rod load. Siemens WinCC Unified covers TIA Portal engineering, HTML5 runtime, PowerTag licensing tiers, Unified Comfort Panels.

Answered from the vendors’ own pages

PROGNOST Systems: Does it replace the compressor protection system?

It can. PROGNOST-NT is SIL 3 rated for machine protection, which is the main reason sites choose it over advisory-only monitoring.

Siemens WinCC Unified: Should I buy WinCC Unified or WinCC V7?

Unified, for any new project. V7 and V8 receive no new features and support ends in 2027.

PROGNOST Systems: Can it be retrofitted to an existing compressor?

Yes, but fitting rod position and internal instrumentation generally needs a machine outage.

Siemens WinCC Unified: Is WinCC OA the same product?

No. WinCC OA came from ETM, has its own engineering environment and licensing, and is aimed at very large distributed systems. It shares only the brand.

PROGNOST Systems: Does it work on centrifugal machines?

PROGNOST offers products for general rotating equipment, but the differentiated diagnostics are for reciprocating compressors.

Siemens WinCC Unified: What is a PowerTag?

An externally connected process variable in the runtime. Internal tags do not count, but archived tags are licensed separately from displayed ones.

PROGNOST Systems: Is it available on new Burckhardt machines?

Yes, Burckhardt Compression offers PROGNOST-NT as a factory-fitted condition monitoring option.

Siemens WinCC Unified: Can operators use it from a browser without installing anything?

Yes, the runtime is HTML5, but concurrent browser clients need WebUX or Unified client licences.

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