ABB PCD235C101 3BHE057901R0101 Central Processing Unit (CPU) module

ABB PCD235C101 3BHE057901R0101 Central Processing Unit (CPU) module

Specific Parameters

• Electrical ParametersSupply Voltage: 24V DC (±10%), supporting 20-30V DC wide voltage input, rated power consumption ≤25WProcessor: 32-bit ARM Cortex-A9 dual-core processor, 1GHz clock speedStorage Configuration: 1GB DDR3 SDRAM (operating memory), 4GB eMMC Flash (program/data storage, supporting up to 32GB expansion)Communication Interfaces: 2 Gigabit Ethernet (10/100/1000Mbps, supporting PROFINET IRT), 2 RS-485 serial ports, 1 PROFIBUS DP master/slave interface, 1 safety bus interfaceSupported Protocols: PROFINET IRT, PROFIBUS DP, Modbus RTU/TCP, EtherNet/IP, HART 7.0Isolation Level: Electrical isolation between power supply and communication circuits, isolation voltage ≥2500V DC, insulation resistance ≥200MΩ (500V DC)Protection Functions: Power reverse connection protection (no damage at -30V DC), overvoltage protection (36V DC threshold), overcurrent protection (2A current limiting), ESD protection
• Environmental ParametersOperating Temperature: -40°C to 70°C (non-condensing, no derating during startup from -40°C to 0°C)Storage Temperature: -55°C to 85°CRelative Humidity: 5% to 95% (non-condensing, continuous operation for 168 hours at 90% humidity and 40°C without failure)EMC Immunity: Complies with EN 61326-1 Class A standard, ESD protection ±15kV (air discharge), ±8kV (contact discharge)Vibration Resistance: 10-500Hz, 1.5g acceleration (IEC 60068-2-6 standard, sinusoidal vibration, each axis tested)Shock Resistance: 30g acceleration, 11ms duration (IEC 60068-2-27 standard, half-sine shock)Certification Standards: IEC 61508 SIL 2 certification, CE (EMC and safety), UL 508C, ATEX Zone 2 explosion-proof certification
• Mechanical ParametersDimensions: 180mm (L) × 100mm (W) × 40mm (H, including connectors)Weight: Approximately 0.9kgMounting Method: AC 800M standard rack slot mounting (3U height), supporting hot swappingHousing Material: Flame-retardant reinforced aluminum alloy (anodized surface, UL 94 V-0 grade)Indicators: Power Status (PWR, green steady on), Operation Status (RUN, green 1Hz blinking), Redundancy Status (RED, yellow steady on), Fault Status (ERR, red steady on), Communication Status (ETH/PROFIBUS, green blinking)

Product Performance

The module’s logic execution cycle is ≤1ms (for 1000 ladder logic instructions), supporting floating-point operations and complex control algorithms (e.g., PID, fuzzy control), with a data processing rate of 100,000 instructions/second. It adopts a dual-CPU redundant architecture, with a redundancy switching time ≤50ms, and no program interruption when a single CPU fails, ensuring control continuity.

The communication interface has a data transmission delay ≤1ms (in PROFINET IRT mode), supporting simultaneous access of more than 100 third-party devices, and maintaining stable communication even when the bus load rate is ≤60%. The built-in fault diagnosis module can detect 15 types of faults such as processor abnormalities, memory errors, and communication interruptions, with a diagnostic coverage rate ≥99.5%. Fault information is uploaded to the monitoring system in real time via the bus.

The module’s Mean Time Between Failures (MTBF) is ≥1,500,000 hours (MIL-HDBK-217F, 25℃ environment), supporting online configuration download (configuration update time ≤15 seconds) and hot-swap replacement time ≤20 seconds, with maintenance processes not affecting system operation. It is compatible with ABB Control Builder M configuration software, enabling graphical programming and remote debugging.