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Schneider Electric TSXSCY21601

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Part NumberTSXSCY21601
ManufacturerSchneider Electric
Model #TSX-SCY-21601
Warranty2 Year
Range of productModicon Premium Automation platform
Product or component typeCommunication module
Software designationUnity Pro
Structure typeHeterogeneous industrial bus
Product compatibilityAtrium
Method of accessMaster/Slave type
Integrated connection type1 serial link 1 SUB-D 25
1 slot for PCMCIA type III card
Communication port protocolMultiprotocol
Communication port supportRS485 isolated
Mode of transmissionAsynchronous in baseband
Transmission frameRTU/ASCII
Transmission rate1.2...19.2 kbit/s
Transmission support medium2 twisted shielded pairs cable
Number of devices28
Number of addresses0...97
Bus length1300 m Modbus
Tap links length15 m
Requests120 words per request
1920 bits per request
Control parameterOne CRC 16 on each frame
Monitoring functionDiagnostic counters
Event counters
Modbus funtions availableEvent connection Modbus master 0C
Event connection Modbus slave 0C
Event counter Modbus master 0B
Event counter Modbus slave 0B
Identification Modbus slave 11
Slave identification Modbus master 11
Write n output bits Modbus slave 0F
Write n output words Modbus slave 10
Diagnostic Modbus master 08
Diagnostic Modbus slave 08
Exceptional read status Modbus master 07
Exceptional read status Modbus slave 07
Read input words Modbus master 04
Read n input words Modbus slave 04
Write 1 bits or n bits Modbus master 05
Write 1 input word Modbus slave 06
Write 1 output bit Modbus slave 05
Write 1 word or n word Modbus master 06
Local signalling1 LED communication (CH0)
1 LED internal fault, module failure (ERR)
1 LED module operating (RUN)
Current consumption350 mA 5 V DC
Module formatStandard

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MRO Electric repairs CNCs, PLCs, Servo/Spindle Drives, Motors, Amplifiers, VFDs, HMIs, and more, most of which can be repaired in only 3-5 days.

Repair Benefits

MRO can restore your failed TSXSCY21601 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.

Our technicians have vast experience with most manufacturers and models. In addition to this TSXSCY21601 we also repair drives, motors, PLCs and more, so if you don’t see the model you need, please contact us.

Core Exchange

If you are interested in getting credit for your faulty TSXSCY21601, 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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Ask about exchanging your faulty TSXSCY21601 for credit when ordering from MRO Electric

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 TSXSCY21601 Overview

The TSXSCY21601 is a communication module manufactured by Schneider Electric. It is part of the Modicon Premium Automation platform and falls under the category of CPUs. This particular module is designed to work with the Unity Pro software designation. 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 CPUs from other manufacturers such as Modicon and ABB.


The TSXSCY21601 communication module is specifically built for a heterogeneous industrial bus structure. It offers compatibility with the Atrium and Premium systems. The module supports the Master/Slave type of access, allowing it to function as a central control unit or a peripheral device in a network.

In terms of connectivity, the TSXSCY21601 features an integrated connection type that includes one serial link with a SUB-D 25 connector. Additionally, it provides one slot for a PCMCIA type III card, expanding its capabilities further. The communication port protocol of the module is multiprotocol, ensuring flexibility in data transmission.

The module supports a communication port with RS485 isolation, making it suitable for industrial environments where electrical noise and disturbances are common. It operates in an asynchronous transmission mode in baseband and supports RTU/ASCII transmission frames. The transmission rate ranges from 1.2 to 19.2 kbit/s, providing options for different data transfer speeds. The transmission medium supported by the module is a two-twisted shielded pairs cable.


When it comes to the number of devices that can be connected, the TSXSCY21601 allows for up to 28 devices to be linked to the network. The module supports a range of Modbus functions, enabling various control and monitoring capabilities. It features diagnostic counters and event counters for comprehensive monitoring. The available Modbus functions include event connections, event counters, identification, read/write operations, and diagnostic capabilities for both master and slave devices.


The TSXSCY21601 communication module offers convenient local signaling through LEDs. It includes an LED for communication status, indicating the activity on channel 0. There is also an LED for internal fault detection and module failure, as well as an LED indicating the operational status of the module.

In terms of power consumption, the module requires a current of 350 mA at 5 V DC. It adheres to a standard module format, ensuring compatibility with other devices in the Modicon Premium Automation platform.

MRO provides a warranty of 2 years for the TSXSCY21601 communication module, assuring customers of its quality and reliability. With its robust features, compatibility, and flexibility, this module serves as a vital component in industrial automation systems, facilitating efficient communication and control within the network.

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 TSXSCY21601, take a look at more from our CPUs 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 TSXSCY21601 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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