Industries · Industrial Automation
IEC 61508 safety evidence, controller firmware, machine connectivity and IEC 62443-aligned security for the teams building PLCs, drives, sensors and safety controllers. Engineering led from Bengaluru.
IEC 61508 verification evidence, controller firmware and machine connectivity for PLCs, drives, sensors and Industry 4.0 edge gateways, with legacy code migration.
PLCs, drives, sensors and safety controllers run the plant, and the software inside them now has two jobs. It must meet functional safety requirements under IEC 61508, and as machines are connected to plant and enterprise systems, it must also stand up to the cybersecurity concerns IEC 62443 addresses. The engineering problem is doing both on real-time controllers, often on codebases that predate either requirement.
GSAS approaches it from the code and the bench. Klocwork provides MISRA C and security static analysis in CI, and Perforce states Klocwork is TÜV SÜD certified for IEC 61508. TESSY by Razorcat automates unit testing with MC/DC coverage, and Razorcat states it is qualified for IEC 61508. Arm Keil MDK Professional includes Arm’s safety-certified compiler, which Arm states is certified to IEC 61508 SIL 3. On the bench, PicoScope covers signal analysis of industrial buses, and Flasher Pro handles production firmware programming with traceability.
Connecting a plant starts at the boundary between operational technology and IT, where machines, sensors and controllers become data sources. GSAS connects them over the protocols plants run: Modbus RTU/TCP (via SEGGER emModbus), OPC-UA, MQTT (via SEGGER emNet and emSSL) and CAN. Edge gateways built on AutoPi edge compute and Docker filter, buffer and forward machine data; multi-channel data acquisition (GW Instek DAQ-9600) captures the signals that feed dashboards, and MES integration runs through FlashTask Pro and XTL-i. Security starts at the gateway, with TLS transport, an IEC 62443-aligned architecture and Klocwork static analysis in the DevSecOps pipeline.
This lets manufacturers modernise brownfield lines, connecting legacy machines through gateways without re-engineering the production line. See the Industrial IoT and Machine Connectivity capability for the full edge-to-cloud engineering offering. For controller makers in Pune, Chennai and across India, GSAS engineers also take on legacy codebase migration, MISRA C compliance and CI pipelines for embedded firmware.
Each card lights the part of the control system that service touches, from the safety controller on the machine to the line that programs and tests it.
The verification evidence an assessor expects at each SIL, produced as the code is written.
Board support, real-time scheduling and update paths for PLCs, drives and sensors.
Machine data off the controller and into the systems that use it, including on lines that already run.
Security built into the controller and gateway firmware, on an IEC 62443-aligned architecture.
Controller software tested the same way on every change, from unit to system level.
Firmware programmed and boards tested at volume, with every result logged.
The same discipline from the first requirement to the board on the line: each stage leaves something an assessor, a plant engineer or the next team can check.
01
Rules, tools and protocols agreed before the first commit
02
Findings reach the developer who made the change
03
Evidence packaged for your safety assessment
Each service above is a full practice at GSAS. These are the pages that describe it in depth.
GSAS is a value added distributor/reseller for these products. We have a dedicated FAE team ready to help you with custom built solutions matching your needs.
Perforce Klocwork Klocwork by Perforce is a scalable SAST tool for C, C++, C#, Rust, Java, JavaScript, Python, and Kotlin, built for DevSecOps with incremental analysis, MISRA, CERT, and CWE enforcement, and TUV SUD certified ISO 26262 and IEC 61508 tool qualification. Deployed and supported across India by GSAS. 
Razorcat TESSY Automated dynamic unit, module, and integration testing for embedded C/C++ with MC/DC coverage. Qualified by Razorcat for safety-related software development per IEC 61508, IEC 62304, ISO 26262 and EN 50128. Buy in India from GSAS. 
Arm Keil MDK A productivity, debugging, and reliability platform for professional Cortex-M development, MDK v6 brings dual IDE workflows, safety-certified compilers, Arm Fixed Virtual Platforms, and subscription licensing. Buy in India from GSAS. 
SEGGER Flasher Pro Professional production flash programmer with SEGGER Top-Speed programming, standalone SD card operation, and full traceability logging for manufacturing compliance. Local stock and support across India, GSAS. 
Pico Technology PicoScope 6000E High-bandwidth USB oscilloscope spanning 300 MHz to 3 GHz bandwidth, FlexRes 8-to-12-bit resolution, and up to 4 GS deep memory. Authorized India partner, GSAS Micro Systems. 
GW Instek DAQ-9600 Series GW Instek DAQ-9600 modular data acquisition system and multi-channel data logger, a 3-slot mainframe scaling to 120 single-ended (60 two-wire) channels, 6½-digit DMM, 14 input signal types and up to 450 channels/sec scanning for temperature, voltage, resistance and strain monitoring. Available in India from GSAS Micro Systems with module-selection guidance, demonstrations, GST-compliant quotations and calibration support. 
AutoPi AutoPi TMU CM4 Open-platform vehicle telematics unit built on RPi CM4, dual CAN-FD, OBD-II, 4G LTE Cat 4, Docker edge computing, HAT expansion, and AutoPi Cloud fleet management. Buy in India from GSAS. A chip shows a published qualification scope where one exists, and the bare standard name where none does.
IEC 62443 is listed in this page's standards set, but no tool in the table below carries a published qualification against it, and GSAS does not claim one. Whether this applies to a given programme depends on its scope, jurisdiction and certification basis.
| Tool | Applicable Standards |
|---|---|
| Klocwork (Perforce) | IEC 61508 up to SIL 4MISRA C |
| Perforce QAC | IEC 61508 up to SIL 4MISRA C |
| Arm Compiler for Embedded FuSa | IEC 61508 SIL 3 (qualified releases) |
| embOS-Safe (SEGGER) | IEC 61508 SIL 3 |
| TESSY (Razorcat) | IEC 61508 (T2 support tool) |
A controller product, a line that needs connecting, or a first Industry 4.0 product.
01
PLCs, drives, sensors, safety controllers
IEC 61508 verification evidence produced alongside the firmware: MISRA enforcement, unit tests with MC/DC coverage, tool qualification, and production programming for the finished product.
02
Brownfield plants
Machines that already run joined to one data layer through protocol-bridging gateways and data acquisition, with the data path secured from the gateway up.
03
First product to production
Gateway and sensor firmware, connectivity and a verification pipeline for a first product, with security and code quality in place before it ships.
Tell us the device, the SIL and the protocols it speaks. GSAS replies from Bengaluru with scope and a proposal: firmware, safety evidence, connectivity and production test.
GSAS provides IEC 61508 verification evidence, PLC, drive and safety controller firmware, machine connectivity and edge gateways, IEC 62443-aligned device and gateway security, verification in CI, and production programming and test. Engineering is led from Bengaluru.
Yes. GSAS enforces MISRA C with deviation records, writes requirements-based unit tests with MC/DC coverage, and classifies how each tool is used, deploys the vendor qualification kits and helps prepare the tool documentation for your IEC 61508-3 activity. The hazard analysis, safety requirements and assessment stay in your safety process. This work produces the evidence for them.
GSAS builds security into the firmware and data path: secure boot, TLS transport from gateway to cloud, and static analysis for CWE and CERT findings in CI, on an IEC 62443-aligned architecture. Certification against IEC 62443 stays with you and your certification body.
Modbus RTU, ASCII and TCP, OPC-UA, MQTT, and CAN and CAN-FD. Gateway firmware filters, buffers and pre-processes the data at the edge and forwards it over MQTT and REST.
Yes. Brownfield retrofit uses non-intrusive data capture and protocol-bridging gateways, with multi-channel data acquisition where a machine exposes no data port. Production data reaches the MES over OPC-UA and REST without re-engineering the line.
Yes. GSAS is a value added distributor/reseller for the static analysis, unit test, programming, edge and measurement tools on this page, and its engineers use the same tools on customer projects.
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