Valmet ACN I/O Series D201129L Isolated Digital Output Module
The main function of D201129L is to receive logical instructions issued by the DCS controller, output 24VDC PNP switch signals, and drive on-site solenoid valves, intermediate relays, indicator lights, and other equipment; D201129L is used to control the start and stop of pumps, valve opening and closing, sound and light alarms and other actuators, achieving remote control of process equipment and interlocking action output. The module converts the internal logic signals of DCS into on-site available switch drive signals, and feeds back the diagnostic status of the output circuit to the DCS system.
Parameter Specifications
| Item | Specification |
|---|---|
| Model | D201129L (DO8P) |
| Product type | 8-channel isolated digital output module, Valmet DNA ACN I/O series |
| Applicable system | Valmet / Metso DNA DCS, ACN RT / ACN MR controller |
| Number of channels | 8 digital output channels |
| Output type | 24 VDC PNP sourcing output |
| Rated output current | 0.5 A per channel, max 4 A total |
| Isolation | Channel to backplane galvanic isolation |
| Diagnostic function | Short-circuit, overload, wire fault detection |
| Response time | ≤5 ms |
| Power supply | 24 VDC via backplane |
| Power consumption | ≤2 W |
| 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 ACN I/O Series D201129L Isolated Digital Output Module
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
- 16 channel high-density switch acquisition, grouped and isolated in groups of 4 channels to suppress inter group interference and improve signal acquisition stability.
- Supports two types of on-site signals, 24VDC active and passive dry contacts, and is compatible with various digital sensors such as valves, pumps, switches, etc.
- Equipped with grouped fault diagnosis function, it can identify channel power supply abnormalities, upload fault information to DCS system, and quickly locate fault circuits.
- Support module online hot plugging, the system can replace modules without shutting down, without affecting the signal acquisition of other channels, ensuring continuous production of the device.
- Wide temperature industrial grade hardware design, suitable for high temperature and fluctuating working conditions of control cabinets, and suitable for process workshops such as papermaking and thermal power.
- Compact board design, with a single module collecting 16 DI points, saving cabinet slots and reducing the number of control cabinets.
- Backplane high-speed bus communication, native compatibility with Valmet DNA ACN rack, real-time signal upload to controller for interlocking and alarm.
- The panel LED channel indicator light provides a visual view of the input status of each switch, making on-site debugging and inspection convenient.
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