METSO IOP114 high-precision Analog Input Module
the Metso IOP114 is a high-precision Analog Input Module designed for the Metso DNA (formerly Valmet DNA) automation system.
It is specifically engineered to handle analog signals where high resolution and accuracy are paramount for process stability.
1. Introduction
The IOP114 is an 8-channel analog input module used primarily within the Metso DNA I/O subsystem.
It converts standard industrial analog signals (typically 0–20 mA or 4–20 mA) into digital values for the system controller.
Unlike the high-density 16-channel modules (like the IOP302), the IOP114 is often selected for applications requiring superior signal isolation and faster processing for critical control loops.
2. Technical Parameter Table
| Parameter | Specification |
| Model Number | IOP114 |
| Number of Channels | 8 Channels |
| Input Signal Type | 0…20 mA / 4…20 mA (Current) |
| A/D Resolution | 16-bit (High Precision) |
| Accuracy | $\pm 0.1\%$ of Full Scale |
| Isolation | Channel-to-Logic and Channel-to-Channel options |
| Scan Interval | 10 ms to 100 ms (Configurable) |
| Input Impedance | Typically 250 $\Omega$ |
| Operating Temp | 0°C to +55°C |
| System Compatibility | Metso DNA / Valmet DNA |
3. Related Models
The IOP114 is part of a specific generation of Metso I/O that focuses on precision:
IOP113: A similar analog input module, often configured for different signal ranges.
IOP115: A variant designed for voltage inputs (0–10V).
IOP302: The high-density 16-channel analog input alternative.
IOT110: The terminal base unit typically used to mount and wire the IOP114.
IOP114
4. Application Cases
Boiler Control: Precision monitoring of drum levels and steam pressure in power generation.
Chemical Dosing: Highly accurate measurement of flow rates in pulp bleaching or water treatment.
Turbine Monitoring: Interfacing with sensitive sensors for mechanical protection systems.
Refining: Used in distillation column control where small fluctuations in temperature/pressure signals require 16-bit resolution.
| CONTINENTAL | CICP1800RB |
| controller with | ICP232 029.359325 |
| CONVERTEAM | P110-6052 |
| CONVERTEAM | MVC3003-4030PP |
| COOLMAY | TK6070FH |
| COOPER | P3798102-00010 CN-UIM2 |
| CTC | AMM-4000-1 |
| CTC | ATM-4505-0 |
| CTC | SC203-100A-002IR-010-01K-05 |
| CTI | 2500-RBC 901E-2500-RBC |
| CURRENTCLIL | MFO-40CT |
| CUS | 7BP702.1 |
| CUTLER HAMMER | 87-01368-01 |
5. Product Advantages and Features
16-bit High Resolution: Provides much finer data granularity than standard 12-bit modules, allowing for smoother PID control.
Robust Signal Filtering: Built-in hardware and software filters to eliminate 50/60 Hz industrial noise from field wiring.
Individual Channel Health: Monitors each loop for “Under-range” (wire break) or “Over-range” (short circuit) and reports status directly to the HMI.
Thermal Stability: Designed with low-drift components to ensure accuracy remains consistent even as the cabinet temperature fluctuates.
6. Other Models in the Same Series
The “100-series” IOP modules are known for their ruggedness in the Metso DNA architecture:
IOP111: Basic Analog Input module.
IOP121: Analog Output module (4-20mA).
IOP131: Digital Input module.
IOP151: Relay Output module.
IOP114