MOXA 45MR-1601 Advanced Controllers & I/Os

Product Overview MOXA 45MR-1601 Advanced Controllers & I/Os

The MOXA 45MR-1601 is a 16-channel digital input (DI) module that is part of the ioThinx 4500 Series, designed for flexible and scalable industrial automation systems . It accepts 24 VDC, NPN (sinking) input signals and supports both wet and dry contact sensors . The first four channels also feature an event counter mode, enabling frequency measurement up to 1 kHz, with 3k VDC isolation for robust signal integrity.

Brand: MOXA

Model No.: 45MR-1601

Condition: New and Original

Warranty: One year

Delivery Time: 3-5 days

Key Parameters and Features

Core Features & Advantages

• Tool-Free Installation and High Density: The module's standout feature is its unique mechanical design, which allows for installation and removal without tools, significantly reducing setup and replacement time . It packs 16 input channels into a compact 19.5 mm wide housing , saving valuable control cabinet space.

• Robust and Reliable Design: Designed for harsh industrial environments, the module operates over a wide temperature range and offers 3k VDC isolation for enhanced protection against electrical faults . It also holds crucial hazardous location certifications (ATEX, Class I Division 2), making it suitable for deployment in potentially explosive atmospheres .

• Flexibility and Scalability: As part of the modular ioThinx 4500 platform, the 45MR-1601 can be seamlessly combined with other DI/DO, AI, relay, and power modules to create customized, scalable I/O solutions for various automation needs . Its event counter function on the first four channels adds extra versatility for applications like flow metering or position sensing .

Typical Applications

The 45MR-1601 is widely used in industrial automation and IIoT applications requiring reliable and flexible I/O expansion, such as:

• Remote Monitoring: Digital signal acquisition in SCADA systems for water/wastewater treatment, oil and gas, and power utilities .

• Machine Building: Connecting sensors, limit switches, and pushbuttons in packaging, material handling, and other machinery.

• Edge Computing: As a key component of an IIoT-ready system, enabling secure and quick deployment of I/O data to cloud platforms.

Frequently Asked Questions 

Q1: What is the primary function of the 45MR-1601?
A: The 45MR-1601 is a 16-channel digital input module for the ioThinx 4500 Series, used to connect 24 VDC NPN field devices like sensors, switches, and pushbuttons for remote monitoring and control .

Q2: What type of digital input does it support?
A: It supports NPN (sink) type digital inputs, compatible with both dry contact and wet contact sensors .

Q3: Does it have any special input modes?
A: Yes. The first 4 input channels can be configured as event counters, supporting frequencies up to 1 kHz .

Q4: What is the difference between 45MR-1601 and 45MR-1601-T?
A: The -T suffix indicates the wide-temperature model, rated for -40 to 75°C, compared to the standard model's -20 to 60°C range .

Q5: What are the power requirements?
A: The module draws 59.4 mA @ 3.3 VDC from the system power and 19.3 mA @ 12 VDC or 25.3 mA @ 24 VDC from the field power .

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