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DNMControls &
Automation

Upgrade the plant. Don't stop it.

Control panel, PLC and SCADA retrofits across five controller platforms — engineered, commissioned and supported by the people who built them.

An engineer responds within as soon as possible.

An industrial control panel with its doors open on a workshop floor
PLC brands

5

PLC brands

Allen Bradley · Siemens · Schneider · Mitsubishi · Omron

SCADA systems

4

SCADA systems

RSView/FactoryTalk · WinCC · Wonderware · Citect

VFD brands

5

VFD brands

Siemens · Allen Bradley · Schneider · Danfoss · Fuji

Industries served

7

Industries served

Building · semiconductor · pharma · nutrition · petrochemical · food · water

Controller platforms

5

Controller platforms

AB · Siemens · Schneider · Mitsubishi · Omron

The work we are built for

The plant already exists. It has to keep running.

On a greenfield project the risk is finishing late. On a retrofit the risk is that the plant does not restart — and that risk is carried by production, not by the project.

So we plan backwards from the shutdown window you can actually give us. Panel built and factory tested, program written and simulated, screens developed and reviewed — all while your plant is still running. The window itself is spent on the changeover, with a rollback route that has been tested rather than assumed.

Migration paths we run regularly

  • Allen Bradley PLC-5 / SLC-500ControlLogix or CompactLogix
  • Allen BradleySiemens S7-1500
  • Siemens S7-300 / S7-400S7-1500 on TIA Portal
  • WinCC FlexibleWinCC Unified
  • RSView32FactoryTalk View SE
  • Obsolete VFDsCurrent SINAMICS / PowerFlex / Altivar
How a changeover is planned
Photograph pending · 16:9The 'before' of a retrofit — an ageing panel with obsolete hardware, dusty, as found on sitepublic/photography/legacy-panel-before.jpg
Photograph pending · 16:9The same machine or plant area after DNM's retrofit — new panel in place, same framing as the 'before'public/photography/retrofit-after.jpg

Before and after on the same machine, shot from the same position.

Expertise

Five controller platforms, four SCADA systems, five drive lines

A plant rarely runs one brand. The utilities are Siemens, a packaging line is Omron, and the chiller skid arrived with whatever its OEM used.

Allen Bradley
Rockwell Automation
Families
ControlLogix · CompactLogix · MicroLogix · SLC-500 · PLC-5
Paired SCADA
FactoryTalk View / RSView, Wonderware / AVEVA
Siemens
SIMATIC
Families
S7-1500 · S7-1200 · S7-300 · S7-400 · ET 200 distributed I/O
Paired SCADA
WinCC
Schneider Electric
Modicon
Families
M580 ePAC · M340 · Quantum · Premium
Paired SCADA
Citect SCADA
Mitsubishi Electric
MELSEC
Families
iQ-R · iQ-F · Q Series · FX Series
Paired SCADA
Wonderware / AVEVA, Citect SCADA
Omron
SYSMAC
Families
NX/NJ Machine Controllers · CJ2 · CP1
Paired SCADA
Wonderware / AVEVA

Protocols

  • EtherNet/IP
  • PROFINET
  • PROFIBUS
  • Modbus TCP
  • Modbus RTU
  • CANbus
  • ControlNet
  • DeviceNet
  • OPC UA
  • OPC DA
Full platform matrix

Standards & compliance

What we work to

Engineering standards are a way of working, not a possession. These are the ones that shape how a DNM project is designed and documented.

IEC 61131-3Named in brief

PLC programming languages

Ladder, function block, structured text and sequential function chart, chosen per problem rather than per habit. Named in DNM's own capability brief as the programming standard the team works to.

IEC 62443

Industrial automation and control system security

Network segmentation, controlled remote access, account handling and patch discipline on OT networks. DNM works to its principles; this is a design posture, not a certification.

IEC 61511

Functional safety, process sector

Where a safety instrumented function is in scope, it is designed to IEC 61511 with a stated integrity level, or referred to a functional safety specialist. It is never implemented inside a basic process control system and described as done.

ISA-88

Batch control models

Recipe, unit and phase separation on batch plant, so a new product is a data change rather than a code change.

Certifications

Listed with their status shown plainly. We would rather show an honest gap than a badge a buyer cannot verify.

  • ISO 9001 — Quality management

    Accredited certification body

    Unconfirmed
  • ISO 45001 — Occupational health and safety

    Accredited certification body

    Unconfirmed
  • Electrical contractor licence

    Tamil Nadu Electrical Licensing Board

    Unconfirmed
  • Controller vendor partner status

    Siemens / Rockwell Automation / Schneider Electric

    Unconfirmed
Certifications in detail

Next step

Tell us what the plant is doing

Send the problem, not a specification. An engineer will come back to you — usually the one who would do the work.

An engineer responds within as soon as possible.

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