Honeywell MLF-AD04C Analog Input Module 4 Channel Voltage Current
Introduction:
The Honeywell MLF-AD04C is a 4-channel analog input module for voltage and current signals. It offers 1.0ms conversion speed and 16-bit resolution.
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Honeywell MLF-AD04C Analog Input Module Overview
The Honeywell MLF-AD04C is a 4-channel analog input module for voltage and current signals. This high voltage input module accepts multiple analog signal types. The Honeywell MLF-AD04C supports DC voltage inputs from 1 to 5 V, 0 to 5 V, 0 to 10 V, and -10 to 10 V. It also accepts current inputs of 4 to 20 mA and 0 to 20 mA. The voltage input resistance is 1 MΩ minimum for minimal signal loading. The current input resistance is 250 Ω for proper loop operation. This module uses photo-coupler insulation between input terminal and PLC power. The Honeywell MLF-AD04C occupies 64 fixed I/O points in the system.
Technical Specifications
General Specifications
Model: MLF-AD04C.
Product Type: Analog Input Module (Current/Voltage, High Voltage).
Analog Input Points: 4 channels per module.
Isolation Method: Photo-coupler insulation between input terminal and PLC power (no insulation between channels).
Terminal Connection: 15-point terminal block.
I/O Points Occupied: Fixed point assignment of 64 points.
Current Consumption: DC 5V at 110 mA; DC 24V at 100 mA.
Weight: 120 g.
Absolute Maximum Input: ±15 V for voltage; ±3 mA for current.
Voltage Input Specifications
The Honeywell MLF-AD04C accepts the following voltage ranges:
DC 1 to 5 V
DC 0 to 5 V
DC 0 to 10 V
DC -10 to 10 V
Input Resistance: 1 MΩ minimum
Current Input Specifications
DC 4 to 20 mA
DC 0 to 20 mA
Input Resistance: 250 Ω
Digital Output Values
(1) Voltage Input Digital Output
| Analog Input | Unsigned Value | Signed Value | Precise Value | Percentile Value |
|---|---|---|---|---|
| DC 1~5 V | 0~16000 | -8000~8000 | 100~5000 | 0~10000 |
| DC 0~5 V | 0~16000 | -8000~8000 | 0~5000 | 0~10000 |
| DC 0~10 V | 0~16000 | -8000~8000 | 0~10000 | 0~10000 |
| DC -10~10 V | 0~16000 | -8000~8000 | -10000~10000 | 0~10000 |
(2) Current Input Digital Output
| Analog Input | Unsigned Value | Signed Value | Precise Value | Percentile Value |
|---|---|---|---|---|
| 4~20 mA | 0~16000 | -8000~8000 | 4000~20000 | 0~10000 |
| 0~20 mA | 0~16000 | -8000~8000 | 0~20000 | 0~10000 |
Resolution Specifications
Data Format: 16-bit binary value (14 bits data)
Voltage Resolution:
1 to 5 V: 0.250 mV (1/16000)
0 to 5 V: 0.3125 mV (1/16000)
0 to 10 V: 0.625 mV (1/16000)
-10 to 10 V: 1.250 mV (1/16000)
Current Resolution:
4 to 20 mA: 1.0 μA (1/16000)
0 to 20 mA: 1.25 μA (1/16000)
Performance Specifications
Maximum Conversion Speed: 1.0 ms per channel.
Resolution: 1/16000 of analog input range.
Installation Guide
Follow these steps to install the Honeywell MLF-AD04C correctly:
Turn off all power to the PLC system before installation.
Mount the 15-point terminal block on the DIN rail.
Insert the Honeywell MLF-AD04C module into the terminal block.
Connect analog field devices to the 4 input channels.
Wire voltage signals with 1 MΩ minimum input resistance consideration.
Wire current signals with 250 Ω input resistance consideration.
Apply DC 5V and DC 24V power to the module.
Configure the input range using your PLC programming software for Honeywell MLF-AD04C.
Packaging List
Honeywell MLF-AD04C analog input module (1 unit)
15-point terminal block (1 piece)
Anti-static protective bag (1 piece)
Installation instruction sheet (1 copy)
Product label with model number
Frequently Asked Questions (FAQ)
1. How many analog input channels does the Honeywell MLF-AD04C have?
The Honeywell MLF-AD04C provides 4 analog input channels per module.
2. What is the maximum conversion speed of this module?
The maximum conversion speed is 1.0 ms per channel for fast data acquisition.
3. Does the MLF-AD04C provide isolation between channels?
No, photo-coupler insulation exists between input terminal and PLC power only. There is no insulation between channels.
4. What is the input resistance for voltage signals on this module?
The voltage input resistance is 1 MΩ minimum for the Honeywell MLF-AD04C.
5. What is the weight of the Honeywell MLF-AD04C module?
This analog input module weighs 120 g (approximately 0.26 lbs).