Product Details
The Honeywell 2MLF-AD8A, also cataloged as the 2MLF-AD8A Analog Input Module, operates as a dedicated hardware component for high-speed voltage and current signal acquisition within MasterLogic-200 PLC networks.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 2MLF-AD8A |
| Brand | Honeywell |
| Origin | South Korea |
| Weight | Approx. 0.1 kg |
| Dimensions | 426 mm x 98 mm x 19 mm |
| Operating Temp | 0 to 55 deg C |
| Power Consumption | <= 100 mA at 24 VDC (+/-10%) |
| Input Channels | 8 analog inputs |
| Input Ranges | Voltage: +/-10 V, 0-10 V, 0-5 V; Current: 0-20 mA, 4-20 mA |
| Resolution | 12-bit |
| Conversion Speed | 1 ms / channel |
| Input Impedance | Voltage: >= 2 Mohm; Current: <= 250 ohm |
| Isolation | Photo-coupler isolation between channels and system logic |
| Connection Type | 40-pin connector |
| Recommended Cable Size | 0.3 mm2 |
Process Control Signal Isolation and Field Instrumentation Protocol
The 2MLF-AD8A module provides high-speed analog-to-digital processing across 8 selectable voltage or current input channels. Designed to interface with standard process instruments such as 4-20 mA HART loop protocol transmitters and +/-10 V sensors, the onboard circuitry utilizes photo-coupler isolation between field wiring terminals and the central backplane bus. An input impedance profile of >= 2 Mohm on voltage ranges and <= 250 ohm on current loops prevents signal attenuation and voltage drops, maintaining precise 12-bit conversion integrity at a hardware throughput rate of 1 ms per channel.
Frequently Asked Questions
Q: What input signal ranges can be configured on individual channels of the 2MLF-AD8A?
A: Each channel accepts standard voltage ranges (+/-10 V, 0-10 V, 0-5 V) or current ranges (0-20 mA, 4-20 mA) configured through system software.
Q: How is field ground noise isolated from the MasterLogic-200 backplane?
A: Electrical noise and common-mode surge voltages are blocked via photo-coupler isolation layers located between field input channels and internal PLC system logic.
Q: What external supply voltage is required to power the analog processing circuitry?
A: The module requires an external power supply of 24 VDC (+/-10%) drawing <= 100 mA of current.
Field Installation Guidelines
- Turn off backplane rack power and external 24 VDC loop power before inserting or removing the 2MLF-AD8A module from the chassis slot.
- Terminate all incoming 4-20 mA or voltage sensor wires to the designated 40-pin connector using wire sizes rated at 0.3 mm2.
- Use shielded twisted-pair cabling for all analog input signal lines to minimize industrial electromagnetic noise coupling.
- Ground cable shields at a single panel ground point near the cabinet entrance, avoiding dual-ended grounding to prevent ground loop currents across non-isolated channel commons.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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