METSO D201466

Product Type:​ Internal electronics unit / motherboard for smart valve positioner
Description:​
This is the core processor board used inside Neles ND9000 or compatible Series 2000 smart positioners. It houses the microprocessor, A/D-D/A converters, HART modem, and piezoelectric pilot driver circuitry. It receives 4–20 mA + HART from the control system and drives the pneumatic section of the positioner. Can also be supplied as a spare/replacement PCB for field refurbishment.

METSO D201471

Product Name:​ Metso Neles Smart Valve Positioner Electronic Module, D201471
Product Type:​ Intelligent positioner controller / internal module or complete unit
Specifications:
  • Input:​ 4–20 mA + HART (optionally Profibus PA / FF per full assembly)

METSO D201472

Product Name:​ Metso DNA Distributed Control System — Analog Output Module, 8-channel (D201472)
Product Type:​ Process I/O module for Metso DNA / third-party DCS racks
Function / Working Principle:​
Converts digital process values from the control engine into proportional analog signals (4–20 mA or 0–10 V DC) to drive field devices such as valve positioners, variable frequency drives (VFDs), or indicating meters. Each channel is galvanically isolated.

METSO D201483

Product Name:​ Metso Neles Smart Valve Positioner Module, D201483
Product Type:​ Advanced pneumatic valve positioner with HART
Technical Specifications:
  • Input Signal:​ 4–20 mA DC + HART protocol

METSO D201832

Working Principle (D201832 Positioner):​
The positioner receives a 4–20 mA DC setpoint from the DCS/PLC and continuously compares it with real-time valve stem position sensed by a non-contact Hall-effect or potentiometric feedback linkage. A digital piezo pilot stage modulates supply air to the actuator in closed-loop control, driving the valve to the commanded position. Auto-calibration establishes the zero, span, and deadband; adaptive gain tuning compensates for actuator friction and seat load variation. HART 7 protocol is superimposed on the 4–20 mA loop for configuration, diagnostics, and partial-stroke testing.

METSO D201925

Function / Working Principle:​
Each of the 32 (or 16, depending on rack firmware revision) input channels accepts a 24 V DC wet contact or solid-state sensor signal from field devices — limit switches, proximity sensors, motor run status, ESD pushbutton contacts, etc. Optical isolation decouples field-side voltage transients from the system backplane. The module samples inputs at a configurable scan rate, applies software debounce filtering, and presents the binary state to the control engine for logic, interlocking, and alarm evaluation. LED indicators show per-channel ON/OFF status and module health. The module is hot-swappable in a live DNA rack.

Metso D202593

Product Name:​ Metso VALMET D202593 / D202593L I/O Communication & Machine Monitoring Module
Product Introduction:​ Part of Metso/Valmet's distributed control and condition monitoring system used in pulp & paper, power, and heavy process industries. The D202593L variant supports redundancy, data logging, and vibration/condition monitoring integration.

METSO IOP302

Product Name: Digital Input Module Product Description: Metso IOP302 is a digital input module for Metso DNA distributed control system. It collects binary on/off status signals from field devices and transmits data to the DCS controller for process monitoring. Technical Specifications:
  • Signal Type: Digital input

METSO IOP320

Product Name: Digital Output Module Product Description: Metso IOP320 is a discrete digital output module for the Metso DNA DCS platform. It outputs on/off control signals to drive field relays, solenoid valves and other binary actuators according to commands from the DCS controller. Technical Specifications:
  • Signal Type: Digital output

METSO IOP331

Product Name: Analogue Input Module Product Description: Metso IOP331 is an analogue input module for Metso DNA distributed control system. It receives 4-20 mA analogue measurement signals from field transmitters and converts analogue signals into digital values for the DCS controller. Technical Specifications:
  • Signal Type: Analogue input, 4-20 mA

METSO IOP351

Product Name: Analogue Output Module Product Description: Metso IOP351 is an analogue output module belonging to Metso DNA DCS system. It converts digital control commands from DCS controller into standard 4-20 mA analogue signals to control field actuators such as control valve positioners.

Metso IOP371

Product Name:​ S800 I/O RTD (Resistance Temperature Detector) Input Module — IOP371
Product Introduction:​ 8-channel RTD input module for Valmet DNA / Metso S800 distributed I/O system; provides high-accuracy temperature measurement with full channel-to-channel and channel-to-bus isolation, supporting 2-, 3-, and 4-wire RTD connections.