Description
ABB HC800 Control Processor Digital Input/Output Module

HC800
The ABB HC800 is a high-capacity control processor module designed for industrial automation and process control applications, particularly within ABB’s Symphony Plus and 800xA Distributed Control System (DCS) architectures. It serves as the central processing unit (CPU) for managing complex control logic, communication, and system integration in demanding industrial environments such as oil and gas, power generation, water treatment, and chemical processing. Below is a detailed breakdown of its features, technical specifications, and applications.
Label |
Specification |
Model Number |
HC800 |
Brand |
ABB |
Type |
Process Controller Module |
Input Voltage |
24 V DC (optional 110/220 V AC) |
Processor |
High-performance embedded processor (up to 1 GHz) |
Memory |
512 MB to 4 GB RAM (scalable) |
Storage |
16 MB Flash memory, 2 MB battery-backed RAM |
Communication |
Modbus TCP, PROFIBUS DP, OPC UA |
Mounting |
35mm DIN rail |
Weight |
0.88 kg |
Certifications |
CE, RoHS, IEC 61131-3 compliant |
Dimensions (WxHxD) |
78.74 x 243.84 x 210.82 mm |
Operating Temperature |
-25°C to +60°C |
IP Rating |
IP20 (indoor use, dust-protected) |

HC800
- Wide Temperature Range: Operates reliably in extreme conditions, from -25°C to +60°C, making it suitable for harsh environments like offshore platforms or chemical plants .
- EMI Resistance: Shielded connectors and robust circuitry reduce interference in high-noise settings .
- Compact Form Factor: Lightweight (0.88 kg) and space-efficient design simplifies installation in crowded control panels .
- High Processing Power: Supports real-time control loops and advanced algorithms (e.g., PID, cascade control) for precise process optimization .
- Large Function Block Capacity: Handles up to 30,000 function blocks, enabling complex automation workflows in industries like pharmaceuticals or food processing .

HC800
- ABB 800xA Compatibility: Integrates with ABB’s 800xA DCS for centralized monitoring and control of distributed systems .
- Third-Party Device Support: Connects to non-ABB PLCs (e.g., Siemens S7) via PROFIBUS DP or Modbus TCP, facilitating hybrid control system setups .
- ABB S800 I/O Modules: Modular I/O system for expanding analog/digital input/output channels .
- ABB AC 800M Controller: Scalable PLC/DCS controller for distributed control systems .
- ABB 800xA DCS: Centralized platform for integrating HC800 with HMIs, SCADA, and enterprise systems .
- ABB Symphony Plus: Legacy DCS system compatible with HC800 for retrofitting or hybrid setups .
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