Description
Core Product Summary (Brand / Model / Key Attributes)
The Metso D201134 (type designation AI8C) is an 8-channel analog input module designed for Metso Automation systems. It accepts standard 0–20 mA or 4–20 mA current signals from field transmitters and converts them into digital values for the control system.
Each channel includes an independent 24 VDC transmitter power supply with current limiting. The module provides 16-bit resolution, short-circuit and open-circuit diagnostics, and is intended for installation on Metso mounting bases such as MB2R/MB2S or MB8R/MB8S.
Key Technical Specifications
| Parameter | Value |
|---|---|
| Product type | Analog input module |
| Model / Type | D201134 (AI8C) |
| Manufacturer | Metso Automation |
| Number of channels | 8 |
| Input signal range | 0–20 mA or 4–20 mA |
| Input impedance | 249 Ω |
| AD resolution | 16 bits |
| Transmitter supply | 24 VDC nominal (min. 21 VDC), current limit 30 mA per channel |
| Fault diagnostics | Short-circuit, open-circuit, high/low limit monitoring |
| Measurement interval | 4.4 ms |
| Filtering | Analog RF low-pass (–3 dB at 20 Hz) + software digital filter |
| Mounting bases | MB2R/MB2S, MB8R/MB8S (Metso Automation) |
Engineering Selection Highlights
- Provides eight independent 0/4–20 mA analog input channels with 16-bit resolution.
- Each channel supplies its own 24 VDC transmitter power with 30 mA current limiting.
- Built-in diagnostics detect open-circuit, short-circuit, and limit violations.
- Compatible with Metso mounting bases MB2R/MB2S and MB8R/MB8S.
- Analog and digital filtering reduce noise on field current loops.
- Measurement update interval of 4.4 ms supports typical process control scan rates.
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
|---|---|---|
| Control system | Metso Automation / DNA platform | Native I/O module |
| Mounting base | MB2R/MB2S or MB8R/MB8S | Required for installation |
| Input signals | 0–20 mA or 4–20 mA current loops | Standard transmitter outputs |
| Transmitter power | 24 VDC per channel (module-supplied) | Current limited to 30 mA |
| Configuration | Metso system engineering tools | Channel range, filtering, and diagnostics set via software |
D201134
D201134
Detailed Product Overview
The Metso D201134 (AI8C) is a dedicated analog current input module used in Metso Automation control systems. It provides eight independent channels for measuring standard industrial current signals in the 0–20 mA or 4–20 mA ranges, commonly generated by pressure, flow, level, and temperature transmitters.
Each channel is equipped with its own isolated 24 VDC transmitter power supply. The supply is current-limited to 30 mA, protecting both the field transmitter and the module in the event of a short circuit. Input impedance is specified at 249 Ω, matching standard current-loop requirements.
Signal conditioning includes an analog RF low-pass filter (–3 dB at 20 Hz) followed by configurable software digital filtering. The analog-to-digital conversion is performed at 16-bit resolution with a measurement interval of approximately 4.4 ms. Built-in diagnostics continuously monitor each channel for open-circuit, short-circuit, and out-of-range conditions.
The module is designed for installation on Metso system mounting bases (MB2R/MB2S or MB8R/MB8S). It integrates directly into the Metso Automation I/O architecture and is recognized by the system engineering tools for configuration and diagnostics.
Dimensions, Mounting & Connection Notes
The D201134 is a plug-in I/O module designed for Metso mounting bases (MB2R/MB2S, MB8R/MB8S). Field wiring for the current loops and any external connections is made according to the terminal arrangement of the selected mounting base. Ensure correct polarity and proper shielding of the 0/4–20 mA signal cables.
FAQ
What is the Metso D201134?
It is an 8-channel analog input module (type AI8C) that measures 0–20 mA or 4–20 mA current signals for Metso Automation systems.
How many channels does it have?
Eight independent analog input channels.
Does the module supply power to field transmitters?
Yes. Each channel provides an independent 24 VDC transmitter supply limited to 30 mA.
What diagnostics are available?
Short-circuit, open-circuit, and high/low limit monitoring on each channel.
Which mounting bases are required?
Metso MB2R/MB2S or MB8R/MB8S bases.
What is the conversion resolution?
16-bit AD resolution.
Verification & Troubleshooting Notes
- Confirm the module is marked D201134 or AI8C before installation.
- Verify the mounting base type (MB2R/MB2S or MB8R/MB8S) matches the system design.
- Check field wiring polarity and continuity of each 0/4–20 mA loop.
- Use the Metso engineering tools to view channel status, measured values, and diagnostic flags after power-up.
- If a channel reports open or short circuit, isolate the field wiring and transmitter before further testing.
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