- Customized systems / solutions based on client and rig requirements.
- Units tested both individually and as integrated systems on-site.
- System burn-in (infant mortality) conducted by operating units for extended periods of time before and after FAT.
- Systems utilize RS 485 serial communications. Signals throughout the complete control system are polled 5 times a second.
- Redundant fiber optic communication links for all surface units to maximize noise immunity.
- Redundant copper and fiber communication links for surface to subsea pods
- Command sequence works on “arm and fire” logic followed by “feedback” loop to ensure smooth functionality of system operations.
- The Oceaneering SCU/Subsea POD Communication System is designed to maximize communication efficiency.
- Signal time between systems is ~200 milliseconds.
- Each Safe Card Cassette caters to 24 solenoids at any given time. Signals can be sent to multiple solenoids using single button push / single command from Master Control Station SCU’s.
- EMERGENCY DISCONNECT SEQUENCE TIMING is not communication limited.
- Systems contain Diagnostic modes, which include:
- Ground fault detection of each power supply system, all pressure housings, each solenoid & transducer.
- Real time water detection in all pressure housings & oil filled chambers.
- Each solenoid excitation current & voltage is monitored continuously
- Solenoid/shear-type seal valve turn/on/off voltage/current signatures are recorded
- Solenoid control channel isolation and solenoid isolation is provided
- Solenoid arm & fire electronics (safe) cassette feedback to surface
