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Schneider Electric 172PNN21022

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MANUFACTURER: Schneider Electric 

DESCRIPTION: 5 VDC Modbus Plus 9-pin D-shell Option Adapter

PRODUCT TYPE INFO: Modicon Communication

15 in stock

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2 Year warranty

Part Number172PNN21022
ManufacturerSchneider Electric
Warranty2 Year
Module formatStandard
Range of productModicon Momentum automation platform
Product or component typeModbus Plus option adaptor
Number of port1
Communication port protocolModbus Plus
Communication port typeSingle
[Us] rated supply voltage5 V DC
Input voltage tolerance+/- 5 %
SupplyVia I/O base
Clock drift+/- 13 s/day accuracy
Battery typeLithium < 30 day after the battery low indication 104 °F (40 °C)
Battery size2/3 AA
Battery life5 yr
Electrical connection1 connector D-shell 9 pins for Modbus Plus connection
Local signalling1 LED communication
Current consumption<= 350 mA 24 V DC
200 mA 24 V DC
Height0.98 in (25 mm)
Width5.63 in (143.1 mm)
Depth2.36 in (60.06 mm)

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MRO can restore your failed 172PNN21022 to remanufactured condition and save you up to 75% compared to buying new. We offer standard repair pricing to ensure you the best value for your repair.

Our certified technicians use rigorous testing procedures to ensure your parts are restored to fully functioning condition. Our team proudly stands behind all repairs by providing a minimum 2-year warranty.

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If you are interested in getting credit for your faulty 172PNN21022, just let us know, and we can issue you an RMA to send it in as an exchange. Our exchange program provides you with savings and keeps us stocked for the next time you need anything.

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MRO Electric provides a 2-year warranty on every item we sell and repair. We stand behind all of our products and guarantee them for the full 2 years. If there is an issue with any of our products within the warranty period, we will evaluate the unit and repair or replace it under warranty.

Schneider Electric 172PNN21022 Overview

The Schneider Electric 172PNN21022 is a Modbus Plus option adapter designed for the Modicon Momentum automation platform. The module is an adapter type with a single port and a standard module format. The adapter allows for easy integration of Modbus Plus communication ports into the Modicon Momentum platform. It is manufactured to the highest standards of quality and is backed by a 2-year warranty. These products are manufactured in France and are designed for Material handling, packaging, and textile machines usage. They come with a 2-year warranty from MRO Electric. We also carry Adapters from other manufacturers such as Modicon and ABB.


The Modicon 172PNN21022 is a compact module that measures 0.98 inches in height, 5.63 inches in width, and 2.36 inches in depth. It is made of Lexan material, a tough and durable thermoplastic material known for its high impact resistance, optical clarity, and resistance to heat and chemicals. The module is marked with the CE mark, indicating that it complies with European Union safety and health regulations.


The adapter has a rated supply voltage of 5V DC and an input voltage tolerance of +/- 5%. It receives its power supply via the I/O base of the Modicon Momentum platform.

The module consumes a maximum of 350mA of current at 24V DC, making it an energy-efficient solution for Modbus Plus communication. The module features one connector D-shell 9 pins for Modbus Plus connection, allowing for a single communication port.

The172PNN21022 has a clock drift of +/- 13 seconds per day accuracy, ensuring that the module keeps accurate time over extended periods of use. The module is powered by a 2/3 AA lithium battery with a life of up to 5 years. The battery's low indication will occur after approximately 30 days at 104°F (40°C), providing ample time for replacement before the battery is completely depleted.


The module's local signaling is via a single LED communication indicator that provides visual feedback on the communication status of the adapter. This feature allows for easy troubleshooting and monitoring of communication between devices connected to the Modbus Plus network.

The 172PNN21022 is an ideal solution for Modbus Plus communication in industrial automation applications, including manufacturing, energy, and transportation.


The module's compatibility with the Modicon Momentum platform makes it an easy-to-use and easy-to-install option for expanding communication capabilities within existing automation systems. The module's single-port design and low power consumption make it a cost-effective and energy-efficient solution for Modbus Plus communication.

Schneider Electric 172PNN21022 FAQ:

What is the purpose of the Schneider Electric 172PNN21022 adapter?

The Schneider Electric 172PNN21022 adapter serves as a Modbus Plus option adapter designed for use with the Modicon Momentum automation platform.

How many ports does the adapter feature?

The adapter features one communication port designed specifically for Modbus Plus communication.

What is the rated supply voltage for the adapter?

The rated supply voltage for the adapter is 5 V DC, ensuring stable power supply for its operation.

How is the adapter powered?

The adapter is powered via the I/O base, ensuring convenient and integrated power supply within the automation platform.

What is the battery type and lifespan of the adapter?

The adapter uses a lithium battery (2/3 AA size) with a lifespan of up to 5 years, ensuring reliable backup power for critical functions.

What are the dimensions of the adapter?

The adapter has a height of 0.98 inches (25 mm), a width of 5.63 inches (143.1 mm), and a depth of 2.36 inches (60.06 mm), ensuring compact and space-efficient installation.

What is the electrical connection interface for the Modbus Plus connection?

The adapter utilizes one connector D-shell with 9 pins for the Modbus Plus connection, ensuring secure and reliable communication.

What is the current consumption of the adapter?

The adapter has a maximum current consumption of <= 350 mA at 24 V DC, ensuring efficient power usage within the automation system.

What is the clock drift accuracy of the adapter?

The adapter has a clock drift of +/- 13 seconds per day, ensuring accurate timekeeping for synchronized operations.

How is the adapter's status indicated locally?

The adapter features one LED communication indicator, providing local signaling for monitoring its operational status.

What material is the adapter made of?

The adapter is constructed from Lexan, a durable and resilient material known for its reliability and longevity.

Does the adapter comply with any standards?

Yes, the adapter is marked with CE certification, indicating compliance with European safety standards for electronic equipment.

Contact Us Today For More Information About Schneider Electric Products

Check out the rest of our Schneider Electric product line. Whether it's using our online instant quote feature, giving us a call at (800) 691-8511, or emailing us at, we strive for customer satisfaction first. This means lower prices and better service for you. For more products like 172PNN21022, take a look at more from our Adapters line. If your current unit has gone bad, take advantage of our Core Exchange program for the most inexpensive route. You can learn more about this program on our FAQ page here. We offer a repair service on all of our 172PNN21022 products that keep your downtime to a minimum. To stay up to date on manufacturer news, as well as access any of our datasheets, manuals, or other documentation, we suggest you take a look at our blog.

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