Standards first
Every interface is built to IEC / IEEE specification and interoperability-tested before it leaves the bench.
Protocol engineers for the power grid
Firstcall Automation designs, builds and commissions SCADA systems, RTUs and gateways that make multi-vendor grid assets talk to one another — reliably, securely and to standard.
Who we are
A focused SCADA & automation practice
We work at the connection points of the power system — where a protection relay meets a bay controller, where a substation meets the load despatch centre, where a solar plant meets the grid operator. Our teams cover hardware, firmware, protocol stacks, SCADA configuration and on-site commissioning under one roof.
That vertical focus is why our RTUs and the SCADA Gateway interoperate cleanly with equipment from every major vendor, and why our project teams can retrofit a live substation without disturbing operations.
Capabilities under one roof
- RTU & gateway hardware design and manufacture
- Protocol stack development & certification
- SCADA / EMS / DMS configuration
- IEC 61850 substation automation (SAS)
- FAT, SAT & 24×7 commissioning support
What drives us
Principles we engineer by
Uptime obsessed
Redundant power, watchdog firmware and hot-swap I/O — because grid telemetry cannot pause.
Documentation you can use
Clear operating manuals, point lists and as-built drawings delivered with every project.
Vendor-neutral
We integrate what you already own; no rip-and-replace unless the asset is truly end of life.
On the ground
Our engineers commission on site and stay on call through stabilisation.
Cyber-aware
Hardened firmware, role-based access and secure protocols aligned with IEC 62443 guidance.
7Automation domains
6+Certified protocol stacks
100%In-house engineering
24×7Commissioning support
Where we work
Domains we deliver
Each is a full practice — engineering, products and support.
SLDC Data Connectivity
RTU/gateway links to State Load Despatch Centre SCADA/EMS.
Windmill SCADA
Wind farm monitoring, curtailment and grid-code compliance.
Solar SCADA
PV plant SCADA with PPC, inverters and generation reporting.
Substation SCADA-SAS
IEC 61850 substation automation systems, greenfield and retrofit.
SMART Grid Automation
Feeder automation, FLISR, RMU and DT monitoring.
SMART Grid GIS Automation
Network model and asset data synchronised with GIS.
SAS Automation
Protection integration, redundancy, time sync, FAT/SAT.
Talk to the engineering team
Tell us about your grid assets and control-centre integration goals.