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Honeywell 2MLI‑D21D Digital Input Module

ABB CI920N 3BDS014113 Communication Interface for Industrial Automation

Honeywell 2MLI‑D21D Digital Input Module

Name: Honeywell 2MLI‑D21D Digital Input Module
Brand: Honeywell DCS
SKU: 712
Availability: InStock
Rating: 5.0 (1 reviews)

Brand:Honeywell DCS
Item No.:2MLI‑D21D
Product Origin:USA
Product Dimensions:135 mm × 50 mm × 110 mm
Product Weight:0.12kg
Payment:T/T, Western Union, Credit Card
Goods_stock:15
Shipping Port:Xiamen, China
Lead Time:1-3 Days
Condition:Brand New And Original
Warranty:1 Year
Certificate:COO
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Product Details
Product Applications
Product Advantages
Technical FAQs
Contact

Introduction

The Honeywell 2MLI‑D21D Digital Input Module is a high-performance DC input module designed for the MasterLogic‑200 PLC series. It provides reliable detection and transmission of discrete DC signals from sensors, switches, and other field devices. With robust input isolation, fast response times, and a compact design, this module ensures accurate, noise-free digital signal acquisition, making it ideal for industrial automation, machine control, and process monitoring applications.

Technical Specifications

Parameter	Details
Input Points	16 DC digital input channels
Rated Input Voltage	DC 24 V nominal
Input Current	~6 mA per point at 24 V DC
ON Threshold	≥ 15 V DC
OFF Threshold	≤ 5 V DC
Response Time (OFF → ON)	≤ 5 ms
Response Time (ON → OFF)	≤ 5 ms
Isolation	Photocoupler isolation rated 500 V DC minimum
Connection Method	18-point terminal block with M3 screws
LED Indicators	Each channel features an LED to show ON status
Form Factor / Mounting	Rack-mountable for MasterLogic backplane
Dimensions (H × W × D)	135 mm × 50 mm × 110 mm
Weight	Approx. 0.12 kg

Applications

Monitoring DC-level field signals from sensors, push buttons, and limit switches
Machine automation and conveyor control systems
Process plants requiring discrete signal acquisition
Expanding digital input capacity in MasterLogic-200 PLC racks
OEM machinery and industrial equipment control

Advantages

High-density DC input: 16 channels in a compact module
Fast response time: ≤ 5 ms ensures quick system reactions
Reliable isolation: Photocoupler isolation protects the PLC logic from electrical noise
LED status indicators: Provides easy visual monitoring of input signals
Easy installation: Standard terminal block and wiring simplify setup
Compact and robust: Ideal for dense control cabinets and industrial environments

Technical FAQs (10)

Q: How many discrete inputs does the 2MLI‑D21D provide?
A: 16 DC input channels.
Q: What is the nominal input voltage?
A: DC 24 V.
Q: What is the typical input current per channel?
A: Approximately 6 mA at 24 V DC.
Q: What is the ON/OFF threshold for input detection?
A: ON ≥ 15 V DC; OFF ≤ 5 V DC.
Q: How fast does the module respond to signal changes?
A: OFF → ON ≤ 5 ms; ON → OFF ≤ 5 ms.
Q: Does the module provide isolation between inputs and logic?
A: Yes — photocoupler isolation rated for at least 500 V DC.
Q: How are the inputs wired?
A: Through an 18-point terminal block with M3 screws.
Q: Does the module have visual indicators?
A: Yes — each channel has an LED showing ON status.
Q: Is it compatible with MasterLogic-200 PLC racks?
A: Yes — designed for plug-in rack-mount integration.
Q: What environments is this module suitable for?
A: Industrial automation, machine control, and process monitoring with DC 24 V field signals.

Sales and Business Development

Phone: +8617350837383
E-mail: [email protected]
Skype: +8617350837383
WhatsApp: +8617350837383
Business hours: We Provide Online Support 24/7
Address: Room 1001, Jiuzhou Commercial Building, Xiamen, Fujian Province, China