CAMERON AAP3798102-00031 Oil and Gas Specialized Control Processor Module

CAMERON AAP3798102-00031 Oil and Gas Specialized Control Processor Module

Interpretation of Model Codes
AAP3798102: Basic hardware series code (prefix for the Cameron compressor unit controller series)
00031: Hardware version + unique batch number for the firmware that is fixed; different suffix numbers result in inconsistent program logic and port definitions, making direct interchange impossible
III. Electrical Parameters of Core Hardware Table
Parameter items Detailed specifications
Main control chip 32-bit industrial-grade embedded processor, dedicated for oil and gas heavy-load control algorithm
Memory / Storage 256MB RAM + 1GB Flash program storage space, capable of storing process curves and fault logs
Power supply Standard 24VDC industrial DC power supply (18~30VDC wide voltage adaptive)
Overall power consumption ≈10W
Communication interface RS485, CAN bus, Ethernet; supports Modbus RTU, Profibus, FF fieldbus, HART protocol
I/O function Integrated multi-channel analog AI/AO, digital DI/DO channels, collecting pressure, temperature, speed, valve opening signals, and output regulating valve drive instructions
Protection level IP20 (control cabinet DIN rail installation)
Dimensions 100×100×50mm, net weight approximately 0.5kg
Operating environment temperature -40℃ ~ +85℃ (suitable for harsh conditions such as cold and hot, high humidity, and salt spray on offshore platforms)
Anti-interference design Grade 4 EMC electromagnetic compatibility, surge protection, salt spray corrosion protection coating, applicable to the surrounding areas of oil and gas explosion-proof zones

Core working functions of the module
Compressor unit overall logic control
Coordinating the start-stop, loading/unloading, pressure closed-loop stabilization, and anti-surge control of natural gas compressors (the most critical protection algorithm for oil and gas units), automatically avoiding the risk of compressor surge damage.
Precise regulation of wellhead throttle valve
Collecting downhole oil pressure and temperature data, automatically adjusting the opening degree of the throttle valve, stabilizing the pressure of oil and gas output, adapting to fluctuations in formation production capacity.
Full parameter monitoring + fault self-diagnosis
Real-time monitoring of vibration, oil temperature, exhaust pressure, and motor current; in case of overload, overheating, or abnormal low pressure, immediately interlock and stop the machine for protection, storing millisecond-level fault event records, facilitating post-event maintenance and traceability.
Data interaction with upper-level system
Uploading the operating parameters of the unit to the central control SCADA system, receiving remote dispatch instructions, adapting to the unmanned operation mode of oil and gas stations.

Program configuration:

Supports on-site process logic modification and parameter calibration, adapting to different gas field operating conditions.
Five. Main application industry scenarios
Offshore oil and gas extraction platforms (core spare parts for wellhead and compressor cabin automation control)
Onshore natural gas transmission pipeline compressor station, gas gathering station compressor units
Process pressure regulation system of oil and gas refineries
Ground processing devices for shale gas and coal seam gas extraction