Product Description
The ProSoft MVI56-S3964R module provides a Siemens 3964R network interface for Allen-Bradley ControlLogix processors, enabling point-to-point communication with Siemens devices using the 3964R protocol. It features dual, independent RS-232/422 ports, performs BCC checksum verification, and integrates seamlessly into a ControlLogix chassis as an I/O module for fast data transfer via ladder logic. The module, which supports up to 512-byte data packets, includes example ladder programs, LED indicators, and acknowledgment telegrams for monitoring communication status, and ships with cables, an adapter, and a CD.
Is Your Device Showing These Signs?
The Allen Bradley MVI56-S3964R communication module commonly experiences issues related to configuration errors within the PLC program, resulting in communication failures. Resolve these failures by verifying the correct serial port settings, including baud rate, parity, and data bits, within both the module's configuration and the connected device. Address data mapping problems by ensuring accurate register assignments for data exchange between the PLC and external devices using the S3964R protocol. Firmware corruption is a potential cause of erratic behavior; resolve this by performing a firmware upgrade to the latest revision. Finally, troubleshoot hardware failures such as damaged communication ports or internal component malfunctions by conducting thorough diagnostic tests and component-level inspections.
Technical specifications
The ProSoft MVI56-S3964R module allows Allen-Bradley ControlLogix processors to communicate with Siemens devices using the Siemens 3964R protocol. It features dual RS-232/422 ports, BCC checksum verification, and integrates into the ControlLogix chassis for fast data transfer. It supports up to 512-byte packets and includes example ladder logic, LEDs, acknowledgment telegrams, and comes with necessary accessories.
Our Repair Process for the
MVI56-S3964R
Our repair process for Allen Bradley MVI56-S3964R communication module failures begins with a verification of the serial port settings, confirming the baud rate, parity, and data bits match between the module's configuration and the connected device. Data mapping problems are addressed by validating the register assignments for data exchange between the PLC and external devices utilizing the S3964R protocol. Firmware corruption is resolved through a mandatory firmware upgrade to the newest revision. Hardware failures, including damaged communication ports or internal component malfunctions, are diagnosed through comprehensive testing and component-level inspections.
Your Guarantee: Warranty & Lifetime Support
Your satisfaction is our top priority, and we confidently stand behind the quality of our repairs. That's why every repair service is covered by our comprehensive 24-month warranty. Furthermore, we offer lifetime phone support – if you have questions or need assistance related to our repair down the road, we're here to help. Our service commitment is straightforward: we guarantee our work, and if you're not satisfied, we will make it right. Learn More about our Repair process.
Comprehensive Repairs You Can Depend On
We take immense pride in the quality and reliability of our work. Our process goes beyond simply fixing the immediate problem. We perform a comprehensive inspection of your main board (or other equipment) and proactively replace components known to be failure-prone or showing signs of potential future failure. Before any item is returned, it undergoes rigorous functional testing to ensure it meets performance specifications and operates flawlessly. Visit our main Repair Services page to learn more.
Save Significantly
Our primary goal is to save you hundreds, or even thousands, of dollars compared to the cost of new equipment replacement. By repairing existing components, we provide an economical solution that is also eco-friendly. At Roc Industrial, our commitment to integrity and community drives our consistent growth and ensures you receive a reliable, cost-effective solution.


Please Note: Roc Industrial operates as an independent service provider and is not an authorized distributor for the manufacturers or brands mentioned. Consequently, the original manufacturer's warranty is not applicable to items repaired or sold by us. Roc Industrial provides its own 2-year warranty on all repair services performed.
Buying Options
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Ships from Rochester, NY