Valmet D201435L ACN series core process controller
The main function of D201435L is to execute DCS continuous adjustment logic, sequential control, and process safety interlock operations; Exchange on-site collected data and output commands with all ACN I/O cards (D201134L, D201136L, D201126L, D201129L, D201436L, etc.) in the rack through the ACN high-speed backplane bus; D201435L comes with multiple Ethernet ports to support redundant Ethernet, enabling data exchange with operation stations, other controllers, and third-party devices, completing real-time closed-loop control, alarm processing, and trend data collection for the entire plant process.
Parameter Specifications
| Item | Specification |
|---|---|
| Model | D201435L (CXW) |
| Product type | ACN Process Controller for Valmet DNA DCS |
| Applicable system | Valmet / Metso DNA DCS |
| Processor | High performance industrial embedded CPU |
| Onboard memory | RAM + Non-volatile flash memory |
| Network port | Multiple 10/100/1000Mbps Ethernet ports, support network redundancy |
| Backplane bus | ACN internal high-speed I/O bus |
| Control cycle | Millisecond-level control execution cycle |
| Supported I/O | Compatible with full series ACN I/O modules |
| Protocol | DNA proprietary protocol, Modbus TCP optional |
| Diagnostic function | Self-diagnosis, watchdog fault detection, runtime fault log |
| Redundancy | Support 1:1 controller hot redundancy |
| Power supply | 24 VDC via backplane |
| Operating temperature range | -20℃ ~ +70℃ |
| Storage temperature | -40℃ ~ +85℃ |
| Relative humidity | 5% ~95% non-condensing |
| Hot swap | Support hot swap during system running |
| Mounting | Rack mounting for ACN I/O chassis |
| Protection class | IP20 |
| Certification | CE, UL |
Valmet D201435L ACN series core process controller
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
- The DNA ACN rack core controller supports 1:1 controller redundancy configuration, and automatically switches to the backup controller without disturbance when the main controller fails, ensuring uninterrupted operation of the device.
- Equipped with high-performance embedded CPU and millisecond level control cycle, it can simultaneously process a large number of analog quantity adjustments, switch interlocks, and sequential control programs to meet complex process control requirements.
- Multi channel Gigabit Ethernet interface, supporting dual network redundancy, connecting the peer-to-peer network between the operation station network and the controller separately. A single point of network failure does not affect control.
- Native compatibility with a full set of ACN series I/O cards, backplane high-speed ACN bus, and mixed with AI8C, DI16C, DI8P, DO8P, DO16C and other I/O cards in the same rack.
- Powerful self diagnostic function, watchdog monitoring, hardware self-test, automatic recording of fault logs, convenient for engineers to troubleshoot controller, bus, and I/O faults.
- Supports Modbus TCP communication protocol for easy integration with third-party PLCs, instruments, frequency converters, and other devices.
- Support online hot plugging, replacing controllers under redundant architecture does not interrupt production control.
- Industrial wide temperature design, suitable for harsh temperature environments in papermaking and thermal power workshop control cabinets; The panel LED indicator light intuitively displays the operation, fault, and main/backup status.
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