The ABB DSPC155 serves as a powerful processor board within ABB’s distributed control system architecture. This advanced module executes control algorithms, manages I/O communications, and coordinates system operations with exceptional speed. Engineers select this processor for demanding applications requiring reliable real-time performance in industrial environments. You can depend on the ABB DSPC155 for consistent execution of complex control strategies in continuous process operations. Its robust design ensures long-term reliability in critical automation infrastructure.
Complete Technical Specifications
| Parameter | Specification |
|---|
| Model Number | ABB DSPC155 |
| Product Type | Processor Board / CPU Module |
| Manufacturer | ABB Automation Products |
| Series Compatibility | Advant Controller, AC 800M, S100 I/O systems |
| Processor Type | High-performance 32-bit RISC processor |
| Clock Speed | 40 MHz to 50 MHz typical |
| Processing Power | >10 MIPS (Million Instructions Per Second) |
| Memory Types | Flash EPROM, SRAM, EEPROM |
| Program Memory | 4 MB to 8 MB flash for application storage |
| Data Memory | 2 MB to 4 MB SRAM for variables and data |
| Non-Volatile Memory | 128 KB EEPROM for configuration parameters |
| Backplane Interface | Proprietary ABB system bus connector |
| Connector Type | DIN 41612 C/96 male connector |
| Communication Ports | RS-232 serial, Ethernet optional variants |
| Front Panel Interface | Status LEDs, reset button, diagnostic port |
| Power Consumption | 5.5 W typical from system backplane |
| Supply Voltage | 5 V DC and ±12 V DC from backplane |
| Component Count | 250-350 components on multilayer PCB |
| Energy Storage | Extensive capacitor network for power stability |
| Operating Temperature | 0°C to +55°C (32°F to 131°F) |
| Storage Temperature | -40°C to +70°C (-40°F to 158°F) |
| Humidity Range | 5% to 95% RH non-condensing |
| Dimensions (H x W x D) | 233 mm x 30 mm x 220 mm (9.17 x 1.18 x 8.66 inches) |
| PCB Dimensions | 220 mm x 160 mm Eurocard format (6U height) |
| Net Weight | 0.55 kg (1.21 lbs) |
| Shipping Weight | 1.15 kg (2.54 lbs) including protective packaging |
| Mounting Type | Direct insertion into ABB backplane slot |
| Front Panel | Aluminum extractor handles with module identification |
| LED Indicators | Power, run, error, communication status |
| Battery Backup | Lithium battery for SRAM and real-time clock |
| Battery Life | >5 years typical under normal operation |
| Certifications | CE, UL, CSA, DNV, Germanischer Lloyd |
Processor Architecture and Performance
The ABB DSPC155 utilizes advanced 32-bit RISC technology for superior processing capabilities. You can execute complex control algorithms with minimal cycle times for responsive system performance. The processor architecture supports both deterministic and event-driven tasks simultaneously.
| Processor Feature | Specification | Performance Benefit |
|---|
| Processor Core | 32-bit RISC design | Efficient instruction execution |
| Clock Frequency | 40-50 MHz | Fast cycle times |
| Instruction Cache | 8 KB to 16 KB | Reduced memory access latency |
| Data Cache | 4 KB to 8 KB | Faster variable access |
| Interrupt Controller | 16-level priority | Deterministic response |
| DMA Controller | 4-channel | Efficient data transfers |
| Watchdog Timer | Hardware-based | Automatic fault recovery |
| Real-Time Clock | Battery-backed | Accurate time-stamping |
Memory Architecture and Storage
The ABB DSPC155 incorporates multiple memory types for different storage requirements. You can store programs in non-volatile flash while maintaining dynamic data in fast SRAM. The battery backup preserves critical data during power interruptions.
| Memory Type | Typical Capacity | Function | Data Retention |
|---|
| Flash EPROM | 4 MB to 8 MB | Program storage, firmware | Non-volatile, >10 years |
| SRAM | 2 MB to 4 MB | Variables, data tables | Battery-backed |
| EEPROM | 128 KB | Configuration parameters | Non-volatile, >10 years |
| Boot ROM | 512 KB | System initialization | Factory-programmed |
| Cache Memory | 12 KB to 24 KB | CPU performance enhancement | Volatile |
| Total Memory | 6.5 MB to 12.5 MB | Combined storage capacity | Application-dependent |
Energy Storage and Power Management
The ABB DSPC155 incorporates extensive energy storage for stable processor operation. Capacitors provide localized power reserves during transient demands and power fluctuations. You benefit from reliable execution without corruption from supply disturbances.
| Energy Storage Component | Quantity | Typical Value | Purpose |
|---|
| Bulk Electrolytic Capacitors | 8-12 | 47 µF to 470 µF | Main power filtering |
| Tantalum Capacitors | 15-20 | 1 µF to 22 µF | Mid-frequency decoupling |
| Ceramic Capacitors | 40-60 | 0.001 µF to 0.1 µF | High-frequency noise suppression |
| Power Supply Filtering | Multiple stages | Pi and L-C filters | Ripple reduction |
| Backup Capacitors | 4-6 | 0.1 F to 0.47 F | Hold-up during brief dips |
| Total Capacitance | ~1500 µF equivalent | Distributed across board | Transient response support |
Backplane Interface and System Connectivity
The ABB DSPC155 connects to the control system through a robust 96-pin DIN 41612 connector. This interface provides communication pathways with I/O modules and other system components. You can integrate the processor into any compatible ABB backplane for centralized control.
| Interface Component | Specification | Signal Types |
|---|
| Backplane Connector | DIN 41612 C/96 male | 96 total connections |
| Address Bus | 24 lines | 16 MB addressing capability |
| Data Bus | 16 lines bidirectional | Parallel data transfers |
| Control Lines | 12-16 lines | Read, write, interrupt, reset |
| Interrupt Lines | 8 dedicated | Priority interrupt support |
| DMA Channels | 4 channels | Direct memory access |
| Power Supply | 5 V DC, ±12 V DC | Multiple dedicated pins |
| System Management | Clock, sync, status | Bus coordination |
Communication Interfaces
The ABB DSPC155 provides various communication options for system integration. You can connect to engineering workstations, operator interfaces, and higher-level control systems. These interfaces enable comprehensive system monitoring and configuration.
| Communication Port | Interface Type | Typical Application |
|---|
| Serial Port 1 | RS-232C | Engineering access, configuration |
| Serial Port 2 | RS-422/485 | Remote I/O communication |
| Ethernet Port | 10Base-T (optional variants) | Network connectivity |
| Diagnostic Port | Proprietary | Factory testing and debug |
| Front Panel Port | RS-232 on front | Local operator access |
| Backplane Bus | Parallel system bus | I/O module communication |
Component Population and Board Construction
The ABB DSPC155 contains hundreds of components on a high-quality multilayer PCB. Each component undergoes rigorous testing before assembly into the final board. You receive a fully tested processor ready for immediate system integration.
| Component Category | Typical Count | Function |
|---|
| Microprocessor | 1 | Central processing unit |
| Memory ICs | 8-12 | Program and data storage |
| Logic ICs | 20-30 | Address decoding, bus interface |
| Interface ICs | 6-8 | Serial communication, drivers |
| Power Components | 15-20 | Voltage regulation, filtering |
| Oscillators/Crystals | 2-3 | System timing references |
| Discrete Semiconductors | 30-40 | Buffering, protection, switching |
| Passive Components | 150-200 | Resistors, capacitors, inductors |
LED Indicators and Front Panel Features
The front panel of the ABB DSPC155 provides visual status indicators for quick diagnostics. You can monitor processor health and activity without opening the control cabinet. These indicators facilitate rapid troubleshooting during system maintenance.
| LED Indicator | Color | Indication |
|---|
| Power (PWR) | Green | Backplane power present and valid |
| Run | Green | Processor executing normally |
| Error (ERR) | Red | Processor fault or software failure |
| Communication (COM) | Yellow | Data transfer activity |
| Battery (BAT) | Red | Low battery voltage detected |
| Diagnostic (DIAG) | Amber | Self-test or diagnostic mode |
Environmental and Mechanical Durability
Industrial environments demand processors that withstand challenging conditions reliably. The ABB DSPC155 operates continuously from 0°C to +55°C without performance degradation. You can install this module in control rooms or field-mounted enclosures with proper ventilation.
| Environmental Parameter | Operating Rating | Test Standard |
|---|
| Operating Temperature | 0°C to +55°C | IEC 60068-2-1, 2-2 |
| Storage Temperature | -40°C to +70°C | IEC 60068-2-1, 2-2 |
| Temperature Gradient | 10°C per hour max | Thermal stress prevention |
| Vibration Resistance | 1g at 10-150 Hz | IEC 60068-2-6 |
| Shock Resistance | 15g for 11 ms | IEC 60068-2-27 |
| Humidity | 5% to 95% non-condensing | IEC 60068-2-78 |
| Altitude | Up to 2000 meters | Normal operation |
| Pollution Degree | 2 per IEC 60664-1 | Industrial environment |
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