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Product Introduction
The Honeywell 2MLF-DC8A-CC is an 8-channel analog current output module engineered for high-performance industrial control systems. It is part of Honeywell’s Modular Local Fieldbus (MLF) I/O family and provides precise current outputs to field actuators such as control valves, I/P converters, and other final elements. Each channel independently sources a regulated current output in the standard 4–20 mA range, with galvanic isolation and diagnostic functions that support safe and accurate process control.
Designed for reliable operation in distributed control system (DCS) architectures, the 2MLF-DC8A-CC supports smooth integration into Honeywell’s Experion PKS, FSC, and other critical automation platforms. This module is ideal for applications that require stable analog control outputs with high resolution and fault monitoring.
Product Specifications
| Parameter | Details |
|---|---|
| Model Number | 2MLF-DC8A-CC |
| Manufacturer | Honeywell |
| Product Type | Analog Current Output Module |
| Series | Modular Local Fieldbus (MLF) |
| Number of Channels | 8 Independent Channels |
| Output Signal Range | 4–20 mA DC |
| Load Resistance | 0–750 ohms |
| Resolution | 16-bit DAC |
| Output Accuracy | ±0.1% of span |
| Channel Isolation | Galvanic Isolation between Channels and Bus (>1500 VDC) |
| Current Limiting | Yes, short-circuit protected |
| Status Monitoring | Output status, open loop, fault indication |
| Diagnostic Capabilities | Channel health, watchdog timeout, output failure detection |
| Operating Voltage | 24 VDC (supplied through the backplane) |
| Power Consumption | ≤ 7.2 W |
| Operating Temperature | -20°C to +60°C |
| Storage Temperature | -40°C to +85°C |
| Humidity Range | 5% – 95% RH (non-condensing) |
| Mounting Method | DIN Rail or MLF Backplane |
| Dimensions (H × W × D) | 140 x 150 x 35 mm |
| Weight | 0.5 kg |
| Certifications | CE, UL, CSA, ATEX Zone 2, SIL2-capable |
Product Applications
The 2MLF-DC8A-CC is suited for analog control tasks across industries where precision, reliability, and diagnostics are critical. Typical application scenarios include:
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Process Control in Refineries – Controlling valves and I/P converters based on process parameters.
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Chemical Manufacturing – Driving final elements for temperature and flow regulation loops.
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Power Generation – Operating fuel metering and steam control valves in thermal and combined-cycle plants.
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Water Treatment Plants – Managing dosage pumps and actuator devices for chemical dosing systems.
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Pharmaceutical Industry – Supporting compliant and accurate analog control for validated processes.
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Food and Beverage – Controlling process flow and batch regulation in hygienic systems.
Product Advantages
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High Output Precision: 16-bit digital-to-analog conversion ensures smooth, accurate current output.
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Channel-Level Isolation: Reduces signal interference and protects field equipment and control hardware.
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Robust Diagnostics: Built-in monitoring helps detect output failures, loop breaks, and operational issues quickly.
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Compact Design: 8 channels in a slim form factor save space in control panels.
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Flexible Configuration: Each channel is independently configurable for various control loop needs.
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Stable Performance: Designed for industrial environments with wide temperature and humidity tolerances.
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Safe Integration: Certified for SIL2 applications and hazardous environments (ATEX Zone 2).
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Energy Efficient: Optimized power usage reduces operational overhead.
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Long Lifecycle: Industrial-grade components ensure years of uninterrupted service.
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Easy Maintenance: Built-in status indicators simplify troubleshooting and maintenance.
Frequently Asked Questions (FAQ)
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What type of signal does the 2MLF-DC8A-CC module output?
It outputs 4–20 mA DC analog current signals, commonly used for controlling valves, actuators, and converters. -
How many outputs are available on this module?
The module provides 8 independent and isolated current output channels. -
Is it possible to use this module for safety-critical applications?
Yes, the module is SIL2-capable and suitable for deployment in safety-instrumented systems. -
Does this module support channel diagnostics?
Yes, it includes diagnostic features like loop break detection, current limiting, and output status reporting. -
What is the resolution of the analog output?
The module features a 16-bit DAC, allowing fine-grained output control. -
Can the module operate in high humidity environments?
Yes, it is rated for 5%–95% RH, non-condensing, making it suitable for demanding industrial environments. -
What is the maximum loop resistance it can drive?
It can handle loop resistances up to 750 ohms per channel. -
Is this module hot-swappable?
In most modular systems, including Honeywell MLF, hot-swap functionality is supported under safe system conditions. -
What happens if a field device fails or disconnects?
The module detects and reports open loop or output faults through its diagnostics. -
What mounting options are available?
It supports both DIN rail and backplane mounting, depending on the enclosure and installation setup.
Related Models (Same Series / Functionally Similar)
| Model Number | Description | Channels | Signal Type | Series |
|---|---|---|---|---|
| 2MLF-DA8A-CC | 8-Channel Analog Output Module (Voltage) | 8 | 0–10 V DC | MLF |
| 2MLF-DC4A-CC | 4-Channel Current Output Module | 4 | 4–20 mA | MLF |
| 2MLF-AD8A-CC | 8-Channel Analog Input Module | 8 | 4–20 mA | MLF |
| 2MLF-AD16A-CC | 16-Channel Current Input Module | 16 | 4–20 mA | MLF |
| 2MLF-DI16-CC | 16-Channel Digital Input Module | 16 | Discrete | MLF |
| 2MLF-DO8R-CC | 8-Channel Relay Output Module | 8 | Relay | MLF |
Popular Honeywell Models (Across Series)
| Model Number | Description | Series | Function |
|---|---|---|---|
| CC-TDIL01 | 24V Digital Input Module | Experion C300 | Digital Inputs |
| FC-TDIO11 | Dual Channel Mixed I/O Module | FSC | DI/DO Combination |
| MC-PAIH03 | Analog Input Module (4–20 mA) | TDC3000 | Process Monitoring |
| TC-PRR021 | Power Regulator Module | TDC2000/TDC3000 | Power Supply Regulation |
| CC-PDOB01 | Digital Output (24 VDC) Module | C300 | Discrete Outputs |
| 51198947-100 | Ethernet Interface Module | TPS / TDC3000 | Communication Interface |
