Service · Modernisation
Industrial Automation Retrofit & Upgrades
A sound machine with an ageing control system doesn't need to be replaced. Upgrading the controls — PLC, drives, HMI or panel — can restore reliability, add capability and remove obsolescence risk at a fraction of the cost of new equipment.
Overview
Sparsh Automation plans and executes retrofits and upgrades to modernise legacy systems with minimal downtime, focusing on a return on investment you can justify.
In our brochure“Modernize legacy systems with minimal downtime and maximum ROI.”
Need only one discontinued part sourced or replaced quickly? Go to Obsolete product support
Capabilities
What our service covers
Assessment
Survey of existing equipment, documentation and obsolescence risk.
PLC migration
Replacing obsolete controllers with current platforms, including program conversion where possible.
Drive upgrades
Replacing DOL or older drive systems with modern VFDs where suitable.
HMI/SCADA upgrades
Replacing legacy panels and adding supervision and data.
Panel modernisation
Rebuilding or replacing panels to current practice with updated drawings.
Typical deliverables
- Survey report and upgrade options
- Migration and cut-over plan aligned with shutdowns
- Engineering, hardware and software for the upgrade
- Commissioning and updated documentation
Final scope and deliverables are agreed in the quotation for each requirement.
Typical applications
- Legacy machines with obsolete controls
- Plants standardising on a single PLC platform
- Adding monitoring or connectivity to existing lines
- Energy-related upgrades using VFDs
Technical considerations
General engineering guidance to help you plan and specify.
- Phasing
- Large upgrades can often be phased to fit planned shutdowns rather than one long outage.
- Preparation off-site
- Building and testing panels and programs before the shutdown keeps cut-over time short.
- Fallback plan
- A clear rollback plan reduces risk if unexpected issues arise during cut-over.
- ROI is case-specific
- Benefits depend on the existing condition and goals. We help you build a realistic business case rather than promise generic savings.
Process
How the engagement works
- 01
Survey
Existing system, documentation and goals.
- 02
Options & plan
Upgrade options, phasing and cut-over plan.
- 03
Prepare
Engineering, panel build and program development off-site.
- 04
Cut-over
Installation and commissioning within the shutdown window.
- 05
Support
Post-upgrade support and documentation.
FAQ
Retrofit & Upgrades: common questions
Can we upgrade the PLC without changing the field wiring?
Often a large part of the field wiring can be retained. The survey identifies what can stay and what must change.
How do you keep downtime short?
By preparing panels and programs off-site, testing them in advance and planning the cut-over in detail before the shutdown.
Should we retrofit or buy a new machine?
If the mechanical equipment is in good condition, a controls retrofit is often more economical. We help evaluate both options.
Enquire about Retrofit & Upgrades
Tell us about your requirement. Drawings, photos and part numbers can be shared by email after you submit.
Discuss your automation requirement with an engineer
Share your process, drawings or part numbers. We'll review the requirement and get back to you with the next steps and a quotation.