Job Title: EMS PLC Programmer – BESS Projects

Job Summary:

The EMS PLC Programmer is responsible for developing and implementing PLC programs within Energy Management Systems (EMS) for utility-scale and commercial BESS projects. This role involves designing control logic, integrating communications with various system components, troubleshooting, and ensuring that control systems meet stringent performance, safety, and regulatory standards.

Key Responsibilities:

- PLC Programming & Control Development:
- Develop, test, and deploy PLC programs (using languages such as Ladder Logic, Function Block Diagram, or Structured Text) to control critical functions in BESS projects, including charging/discharging cycles, state-of-charge monitoring, thermal management, and fault detection.
- Integrate EMS functionalities such as load management, grid interconnection control, and emergency shutdown protocols into the PLC system.
- Create and maintain robust, modular, and scalable code that can adapt to evolving project requirements.
- System Integration & Communication:
- Interface PLC systems with battery management systems (BMS), inverters, transformers, and other power electronics via standard protocols (e.g., Modbus, CAN, Ethernet/IP).
- Collaborate with control system engineers to integrate Human Machine Interfaces (HMIs) and Supervisory Control and Data Acquisition (SCADA) systems, ensuring seamless data exchange and system monitoring.
- Configure and test network communications to ensure reliable, real-time monitoring and control.
- Design Validation & Testing:
- Develop detailed test plans and participate in Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) for EMS control systems.
- Troubleshoot and debug control system issues during commissioning and post-installation phases.
- Work with cross-functional teams to validate that the control systems comply with project specifications, industry standards,



and safety requirements.
- Documentation & Compliance:
- Prepare and maintain technical documentation, including program code, flowcharts, wiring diagrams, and system manuals.
- Ensure that all programming and integration work adheres to relevant standards (e.g., IEC 61427, IEC 62133, UL 1973, UN 38.3) and regulatory requirements.
- Provide comprehensive training and support materials for system operators and maintenance personnel.

- Continuous Improvement:
- Stay current with emerging technologies, programming best practices, and advancements in energy storage control systems.
- Propose enhancements to improve system performance, reliability, and scalability, ensuring that the EMS remains at the forefront of industry innovation.
- Collaborate in post-project reviews to capture lessons learned and refine control strategies for future projects.

Required Qualifications:

- Bachelor’s degree in Electrical Engineering, Control Systems Engineering, or a related field.
- 3-5 years of experience in PLC programming and control systems development, preferably in energy storage, renewable energy, or industrial automation projects.
- Solid knowledge of EMS, battery management systems (BMS), and power electronics in the context of BESS.
- Proficiency in programming languages used in PLCs (Ladder Logic, Structured Text, etc.) and familiarity with HMI/SCADA systems.
- Experience with communication protocols such as Modbus, CAN, and Ethernet/IP.

Preferred Skills & Experience:

- Experience working on utility-scale or commercial BESS projects.
- Familiarity with industry standards and regulatory requirements for energy storage systems (e.g., IEC, UL, UN 38.3).
- Strong analytical, problem-solving, and troubleshooting skills.
- Excellent written and verbal communication skills with the ability to document technical details clearly.
- Certification in relevant PLC programming or control systems (e.g., Siemens S7, Allen-Bradley, or similar platforms) is an advantage.

📌 EMS PLC Programmer – BESS Projects || Pune || 5 year+ || Immediate Joiner (Maharashtra)
🏢 Innova ESI
📍 Maharashtra