HMI + SOFT PLC · ONE PLATFORM

The HMI that is the controller.

Design operator screens and write IEC 61131-3 control logic in one engineering tool — then run both on a single industrial PC. No separate PLC required.

Request a live demo See how it works
Windows & Linux ARM64ST · Ladder · SequenceSiemens · AB · Mitsubishi
Logivyx Studio — Helium Leak Testing Machine · SOFT PLC RUN
Logivyx Studio editing the manual screen of a helium leak testing machine, with widget palette and property editor
2-in-1
HMI designer and Soft PLC
3
Logic languages: ST, Ladder, Sequence
30+
Ready-made HMI widgets
8+
Industrial protocol drivers
WHY LOGIVYX

Fewer boxes in the cabinet. More machine for the money.

The same project file holds your screens, alarms, recipes and reports and the control logic that drives the machine — deployed together to one Windows or Linux industrial PC.

THE CONVENTIONAL WAY
HMI panel + separate PLC
HMI Panel+PLC CPU+I/O
  • ✕ Two hardware purchases, two cabinets of space
  • ✕ Two engineering tools, two licences, two skill sets
  • ✕ Tags duplicated and kept in sync by hand
  • ✕ Diagnosis split across two systems
THE LOGIVYX WAY
HMI + Soft PLC on one PC
HMI + Soft PLC→Remote / fieldbus I/O
  • ✓ Eliminates the PLC CPU from the bill of materials
  • ✓ Screens and logic share one tag database
  • ✓ Single tool from design to commissioning
  • ✓ Live logic and I/O diagnosis beside the HMI
KEY FEATURES

Everything a machine needs, in one project file.

All features →
CORE

Embedded Soft PLC

A deterministic, cyclic logic engine inside the HMI runtime — scan-time and overrun monitoring, retentive variables, STARTUP / SHUTDOWN routines.

Drag-and-drop HMI

Zone-grid canvas, Master Template overlay, popups and 30+ widgets — display, controls, process and P&ID.

No-code programming

Graphical Ladder and Sequence designers, form-based wizards and auto-generators — Structured Text only when you want it.

Multi-vendor drivers

Allen-Bradley, Siemens S7, Mitsubishi, Modbus TCP/RTU, OPC UA, EtherNet/IP and more.

Online diagnosis

Live ladder, live sequence steps, logic and I/O diagnosis with watch window and forcing.

Data, recipes, reports

SQLite data logging, multi-profile recipes, tag-triggered PDF reports and SQL Server access.

Security built in

User groups, hashed passwords, and per-screen, per-dialog and per-widget authorisation.

Web & mobile viewer

Read-only live mirror of HMI screens in any browser or Android device on the network.

Open export path

Export logic to Studio 5000 (L5X) and TIA Portal (SCL); import existing L5X projects. Your logic is never locked in.

NO-CODE ENGINEERING

Program by configuring, not by coding.

Engineers fill in forms, draw diagrams and import spreadsheets — Logivyx writes the program. Faster engineering, fewer errors, projects any team member can maintain.

01
Tag list
Excel · L5X · PLC export
02
Sequence
Drawn graphically
03
Auto Gen
Alarms · screens · ladder
● RUN
Ready to run
On the Soft PLC
Auto-generated settings screen for the Auto_Cycle sequence of a helium leak testing machine
  • ALAuto Alarms — define conditions in a table; the alarm routine and IDs are generated.
  • SSAuto Settings Screens — one click creates a full settings screen per sequence.
  • LDAuto Ladder Generator — output ladder from your sequence steps and command tags.
  • ANAuto Analog Scaling — raw-to-engineering-unit scaling for every channel.
  • DLAuto Data Logging & Recipes — profiles generated straight from the sequence.
ONLINE DIAGNOSIS

See the machine think. Troubleshoot in minutes.

Trace a fault from the operator screen, through the sequence step, down to the ladder rung and the physical I/O — all live, all in one tool. No second laptop, no second software.

Live ladder view of a leak-test project with energised contacts highlighted
Live ladder — energised contacts and coils highlight green while the machine runs.
Live sequence view showing machine steps, transitions and alarm branches
Live sequence — the active step lights green and blinks red on timeout.
ALREADY HAVE A PLC?

A neutral HMI for Mitsubishi, Siemens & Allen-Bradley.

Run Logivyx as a vendor-neutral HMI / SCADA on top of your installed PLCs. One HMI standard across a mixed plant — and the freedom to move control into the Soft PLC whenever you're ready.

How the neutral HMI works →
MitsubishiMELSEC iQ-F · SLMP
SiemensS7-300/400 · S7-1200/1500
Allen-BradleyControlLogix · CompactLogix
+ Modbus TCP/RTU · OPC UA client & server · EtherNet/IP
AUTO screen of the helium leak testing machine showing leak results, outputs and initial conditions
PROVEN IN PRODUCTION

Helium leak testing machine — HMI and Soft PLC in one project.

Built and running on LSPL production leak-test machines: operator screens, P&ID process view, sequence-driven auto cycle, generated alarms and batch reports — on a single industrial panel PC.

6
Operator screens
2
Graphical sequences
2
Ladder routines
0
Separate PLCs
Read the case study →
IDEAL APPLICATIONS

Built for machine builders and system integrators.

Leak testing machines
Helium, vacuum-decay and pressure-decay testers.
Assembly SPMs
Special-purpose assembly and press-fit stations.
EOL & test benches
Function testing with logged results and PDF certificates.
Filling & packaging
Sequenced cycles with recipes and batch reports.
Process skids
Tanks, valves, pumps and PID loops on one controller.
Water & wastewater
Pumping stations, dosing and level control.
Gas & vacuum systems
Gas handling, evacuation and pressure regulation.
Material handling
Conveyors, transfer lines and pick-and-place.
Vision & traceability
Barcode scanning, camera inspection, SQL traceability.
Motion axes
CiA 402 servo positioning, homing and jogging.
Automotive components
Valve, cylinder and sub-assembly testing lines.
Retrofits & upgrades
Modernise legacy machines or front an existing PLC.

See HMI + Soft PLC on one PC.

Design → Simulate → Deploy. We'll walk you through a live project in 30 minutes.

Request a live demo