CCC TIOC-555HD Controller (Compressor/Turbine Specific I/O Control Board)
One sentence positioning: The high-performance I/O control and communication board for compressors/turbines produced by CCC (Compressor Controls Corporation) is used for speed/anti surge/load control, signal acquisition, and DCS communication of centrifugal/axial compressors, gas turbines, and industrial turbines. It is the core IO module of CCC control systems.

1、 Model and Identity
Model: TIOC-555HD
Brand: CCC (American Compressor Control Company)
Full name: Turbine/Compressor Input/Output Controller
Type: Multi channel I/O+Communication+Real time Control Board (CPCI/VPX Industrial Bus Specification)
System: CCC 5000/6000 compressor control system, turbine unit control system
2、 Core functions (three in one)
Unit main control: compressor anti surge control, speed regulation, load distribution, excitation/valve position control, safety interlock.
I/O hub: high-density analog/digital data acquisition and output, connected to on-site sensors, actuators, and solenoid valves.
Communication gateway: DCS/PLC/upper computer interface, supporting mainstream industrial protocols, realizing data exchange and remote monitoring.
3、 Hardware specifications
1. Basic parameters
Processor: 32-bit high-speed CPU+FPGA, hard real-time processing, millisecond response.
Power supply: 24VDC (± 10%), redundant dual input, anti reverse/overvoltage.
Power consumption:<20W
Size: Approximately 200 × 150 × 40mm (CPCI standard board)
Weight: Approximately 0.5kg
Environment: -25 ℃ to+85 ℃ (industrial wide temperature range), IP20， Three proof coating, anti vibration/impact
2. I/O configuration (high-density)
Analog input AI: 8 channels (4-20mA/0-10V), accuracy ± 0.1%, used for pressure/temperature/flow/vibration.
Analog output AO: 4 channels (4-20mA/0-10V), used for valve position/speed/load regulation.
Digital input DI: 16 channels (24VDC), dry/wet contacts, interlock/status feedback.
Digital output DO: 8-way (relay/transistor), 24VDC/220V AC, driving solenoid valve/alarm light.
3. Communication interface (onboard)
Ethernet: 2 × 10/100Mbps, Modbus TCP, Profinet
Serial port: RS-232/RS-485, Modbus RTU
Fieldbus: Profibus DP, CANopen
Backplane bus: CPCI/VPX, connected to CCC system main control CPU
4、 Typical application scenarios
Oil and gas: anti surge and speed control for natural gas long-distance pipeline compressors and oil field gas injection compressors.
Chemical/Petrochemical: Load optimization and safety protection for large centrifugal compressors, synthesis gas compressors, and refrigeration compressors.
Electricity: gas turbine/steam turbine speed control, excitation regulation, DCS interface.
Metallurgy/Air Separation: Axial compressors, air separation compressors for anti surge and efficient operation.
5、 Difference
TIOC-555HD (CCC): Compressor/turbine specific I/O+control board, focusing on anti surge, speed, and load control.
PCD235A/230 (ABB): Dedicated main control for generator excitation, focusing on AVR, reactive power, and synchronization.
UFC921A (ABB): Transmission/excitation communication master control, focusing on DCS interface+power unit control.
IS420ESWDH1A (GE): Mark VIe system switch, only network forwarding, no control function.
8440-1831 (WOODWARD): Generator parallel/load controller, focusing on synchronization and load distribution.