Valmet PDP601 Distributed Processing Unit DPU
PDP601 181585 is the distributed processing unit DPU of Valmet system, which belongs to the core main control processor module of the entire control system. PDP601 is responsible for collecting on-site process data uploaded by IOP series I/O cards inside the rack, executing control strategies such as PID regulation, interlocking logic, and sequential control programs, and issuing control instructions to output cards; At the same time, data exchange is achieved through high-speed networks and other DPUs and upper computers to achieve collaborative control of the entire factory process. PDP601 is mainly used for replacing old DNA system spare parts in industries such as papermaking and pulp making
Parameter Specifications
| Item | Specifications |
|---|---|
| Product Type | Distributed Processing Unit (DPU) |
| Part Number | PDP601, 181585 |
| Processor | 32-bit RISC PowerPC CPU |
| Application Memory | 128 MB SDRAM |
| Firmware Storage | 64 MB Flash Memory |
| Ethernet Interface | 2 × 10/100Mbps for DNA control network |
| Serial Interface | 1 × RS-485, support Modbus RTU |
| Redundancy Mode | 1:1 Hot Standby redundant configuration |
| Minimum Scan Cycle | 10 ms configurable |
| Isolation Voltage | 1500V AC |
| Power Supply | 24VDC (10~30VDC range) |
| Max Operating Current | 400mA |
| Operating Temperature | -20℃ ~ +60℃ |
| Storage Temperature | -30℃ ~ +80℃ |
| Relative Humidity | 5%~95% RH, non-condensing |
| Mounting Method | Rack slot mounting |
| Enclosure Protection Class | IP20 |
| Supported I/O Series | IOP series I/O modules |
| Communication Protocol | DNA proprietary protocol, Modbus RTU |
| EMC Compliance | CE Class B |
Valmet PDP601 Distributed Processing Unit DPU
Brand Introduction：
Valmet is headquartered in Finland and its automation business was formerly under Metso. In 2013, Metso’s automation business was merged into Valmet and it is a leading supplier of process industrial equipment and automation solutions for the global pulp and paper, energy, biomass, mining, and building materials industries. Its main products include complete production lines, DCS automation systems, field instruments, valves, analytical instruments, and full lifecycle spare parts and maintenance services.
Core automation products:
Valmet DNA Distributed Control System (DCS) is the main process control system of Valmet, including the old IOP series I/O and the new generation ACN series I/O hardware (D201435L CXW controller D201134L AI8C、D201136L DI16C、D201126L DI8P、D201129L DO8P、D201436L DO16C Etc.)
- Hardware: ACN rack, redundant controller module, analog input/output, digital input/output I/O card, bus communication module; Support module hot plugging, channel level fault diagnosis, wide temperature industrial working conditions, support 1:1 controller redundancy, ensuring uninterrupted continuous production.
- Software: Process control software, human-machine interface HMI, historical trends, alarm management, advanced process control APC, equipment status monitoring, asset operation and maintenance management software.
- New generation platform: DNAe , web architecture DCS, strengthened network security, suitable for key process devices such as power plants and ships.
Product features
- Adopting PowerPC 32-bit RISC high-performance processor, it has fast computing speed and supports fast PID closed-loop regulation and complex interlocking logic operation.
- Supports 1:1 hot redundancy configuration. In the event of a main DPU failure, the backup unit can automatically switch without disturbance, ensuring continuous operation of the production process.
- A dual port DNA high-speed control network enables data exchange between multiple DPUs and between DPUs and the upper monitoring system, with redundant network links.
- Comes with RS485 serial port, supports Modbus RTU protocol, and can be connected to third-party instruments and auxiliary control devices.
- Built in complete self diagnostic function, real-time monitoring of CPU, memory, communication, and power status, and uploading fault information to the system alarm.
- Rack slot installation, compatible with Valmet DNA system standard cabinet backboards, supports online plug-in maintenance.
- Industrial coating reinforced circuit board, resistant to dust and vibration, suitable for harsh working conditions such as wet and dusty pulp and paper making.
- Modular architecture, can be freely matched with IOP series analog and digital I/O cards, and flexibly expand the scale of measurement points.
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