Description
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | D201136 |
| Manufacturer | Metso Automation |
| Module Designation | AO4C |
| Product Type | Analog output module |
| Number of Channels | 4 |
| Signal Category | Analog current output |
| Current Signal Reference | 20 mA |
| System Family | Metso ACN I/O |
| Exact Output Range | Verify against module revision |
| Resolution | Not independently verified |
| Output Accuracy | Not independently verified |
| Maximum Load | Not independently verified |
| Supply Voltage | Verify against applicable hardware documentation |
| Mounting / Connection | Confirm installed ACN I/O mounting base and terminal arrangement |
Metso’s cabinet documentation identifies the AO4C as a 20 mA analog output unit. A separate technical overview describes the ACN I/O architecture and distinguishes the M80 and M120 module families, but does not establish every electrical rating for D201136. Those values should not be assumed from another module or suffix variant.
Product Introduction
Metso D201136 AO4C Analog Output Module
The Metso D201136 AO4C is a four-channel analog output module used in Metso automation cabinets. It provides controller-command outputs for field devices that require analog control signals. Metso cabinet documentation lists the D201136 as an AO4C unit in a configuration containing digital and analog I/O modules.
D201136
In process-control applications, analog outputs commonly command valve positioners, regulating devices, and other modulating equipment. Before installing a D201136 replacement, engineers should verify the output signal range, load requirements, terminal wiring, and hardware revision against the original cabinet drawings. The part number alone is not enough to establish those electrical details.
Application Scenarios & Field Pitfalls
The is relevant where a Metso control system must send analog commands to field equipment. A replacement error can be costly: an output module that looks similar but uses a different signal range, terminal assignment, or channel configuration may cause incorrect actuator response or prevent a control loop from operating.
Typical application areas
- Control valve positioning: Supplies analog command signals to compatible valve positioners.
- Process flow regulation: Interfaces controller output values with modulating flow-control equipment.
- Pressure and temperature control: Provides analog commands to compatible regulating devices.
- Motor and equipment control interfaces: Supports analog reference signals where the connected drive or controller is designed for that interface.
Engineering checks before replacement
- Confirm the module identity. Look for the AO4C designation on the module label. Some third-party catalogs describe as an analog input module, which conflicts with Metso cabinet documentation.
- Check current versus voltage output. Do not assume that a module described as a 20 mA output unit also supports voltage output. Verify the exact signal configuration in the applicable manual.
- Verify the load and loop wiring. Check whether the field device is passive or externally powered, and confirm the required loop wiring and load impedance.
- Check the hardware suffix. and D201136L should not automatically be treated as interchangeable. Confirm the revision, mounting base, terminal arrangement, and system configuration.
- Test the output under controlled conditions. Before returning a loop to automatic control, verify channel scaling and output response with an appropriate test load and the plant’s commissioning procedure.
Related Products
- D201134 – AI8C: Metso analog input module for acquiring process signals. It performs an input function rather than the output function of .
- D201126 – DI8P: Digital input module for discrete field-state signals. It is not a substitute for analog output control.
- D201129 – DO8P: Digital output module for discrete control commands. Use it for compatible on/off signals, not continuous analog references.
- D201190 – AO4H: Four-channel HART analog output module identified in Metso parts listings. Its HART capability makes it a different selection from the ; verify system and field-device compatibility.
- D201136L – : Related four-channel designation listed for Metso DNA systems. Confirm the suffix, revision, and hardware compatibility before considering it as a replacement.
Procurement note: Request clear photographs of the label, revision markings, and terminal side. For a replacement order, compare those details with the installed module and cabinet drawings. Do not approve a substitute based solely on a catalog description that calls it an analog input module.
