Valmet D201189L DCS system 8-channel analog input module
D201189L (AI8H) is responsible for collecting various analog sensor signals on site, converting continuous physical quantity signals into digital signals recognizable by the control system, uploading them to the controller, and completing real-time collection and monitoring of process parameters such as temperature, pressure, liquid level, flow rate, etc. D201189L is the signal acquisition unit between the on-site instruments and the main control unit in the process control system.

Parameter Specifications
| Parameter | Value |
|---|---|
| Model | D201189L(AI8H) |
| Manufacturer | Valmet(Metso) |
| Module Type | Analog Input Module |
| Number of Channels | 8 Channels |
| Input Signal | 4-20mA / ±10V |
| Resolution | 16-bit |
| Power Supply | 24VDC |
| Mounting Type | DIN Rail Mount |
| Operating Temperature | -10℃ ~ +50℃ |
| Protection Class | IP20 |
| Communication | RS485, Modbus RTU |
| Weight | 0.4kg |
Valmet D201189L DCS system 8-channel analog input 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
- 8 independent analog acquisition channels, supporting current and voltage signal input, suitable for the vast majority of industrial transmitters.
- Channel isolation design, strong anti-interference ability of photoelectric isolation, can suppress signal noise caused by on-site motors and frequency converters.
- The module comes with a channel status indicator light, which facilitates quick on-site diagnosis of signal and module faults.
- DIN rail installation, modular plug-in structure, easy disassembly and maintenance, supports hot plugging and replacement of spare parts.
- Compact design, saving installation space for control cabinets, compatible with the old Valmet Metso DCS system
- Wide voltage adaptation, 24V DC power supply, strong stability, suitable for continuous and uninterrupted industrial process monitoring.
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