Orbit International Survey Services (Orbit ISS) is an industrial asset integrity engineering management firm based in United Arab Emirates, since 2006. We are an ISO 9001:2015, ISO 14001:2015 & ISO 45001:2018 accredited company and have provided asset integrity solutions to high-profile clients throughout the Middle East, North America, and Asia. Founded on the principles of safety, quality, and environmental stewardship, Orbit ISS is committed to providing world-class services and technology that help our clients address complex challenges in the oil, gas, marine and renewable energy sectors.
Visit our website at www.orbitiss.com to learn more.
Role Overview:
Orbit International Survey Services LLC is looking for a skilled
PLC Programming Engineer
with proven expertise in
Siemens SICAM PAS, SICAM A8000 RTUs (CP8022/CP8050), and WinCC SCMS systems
. The role involves programming, configuration, testing, and commissioning of automation and control systems for high-voltage substations (765kV/400kV/220kV), with a strong focus on protocol integration, network communication, and IED configuration.
Key Responsibilities:
PLC Programming & Integration:
Develop and troubleshoot Siemens PLC programs using TIA Portal (S7-1200, S7-1500).
Configure and integrate communication with field devices using:
+ Modbus (RTU/RS485, TCP/IP)
+ Profinet
+ IEC 61850 (GOOSE Messaging, MMS)
+ IEC 60870-5-104 (IEC104) for SCADA systems
+ Configure IEDs, RTUs, and gateway devices for interoperability.
Testing & Validation:
Perform Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT).
Simulate PLC control logic and communication signals using test benches or simulators.
Validate communication between PLCs, HMIs, protection relays, and SCADA systems.
Commissioning Activities:
Lead and execute on-site commissioning, including:
+ I/O and signal testing
+ Protocol testing (IEC61850/IEC104)
+ Drive/VFD configuration (e.g., Siemens G120)
+ Substation or plant automation system startup
Ensure proper configuration of data points for SCADA/EMS/DMS integration.
Troubleshooting & Support:
Diagnose and resolve hardware/software issues in the field related to PLCs or protocol communication.
Modify PLC or SCADA configurations during commissioning to meet changing requirements.
Provide remote or on-site technical support during commissioning and post-handover.
Documentation & Reporting:
Prepare technical documents: communication matrices, IED configuration files, test reports, and commissioning checklists.
Maintain project-specific backups and version control for PLC, SCADA, and communication configuration files.
Support customer training and handover documentation.
Requirements
Bachelor's or Diploma in Electrical, Electronics, Instrumentation, or Automation Engineering.
3-6+ years in PLC programming and field commissioning, with hands-on Siemens PLC experience.
Practical experience with industrial protocols: Modbus (RTU/TCP), Profinet, IEC61850, and IEC104.
Siemens TIA Portal, S7-1200/1500, and HMI (WinCC, WinCC Unified).
Configuration tools for IEDs and communication gateways (e.g., Siemens SICAM, Schneider, ABB PCM, SEL).
Familiar with network diagnostics tools (Wireshark, IEC61850 test tools).
Reading and interpreting electrical drawings, signal lists, and SCADA point lists.
* Can join immediately upon selection.
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