DECnet Phase IV -to-TCP Industrial Gateway Build

@AZTURK1

Hi there, I understand you're seeking a custom, bidirectional DECnet Phase IV to TCP industrial gateway for seamless monitoring and control between a VAX/OpenVMS system and modern SCADA software. With over 7 years in embedded Linux, protocol integration, and real-time data handling, I’m confident in delivering a robust solution tailored to your needs. - Develop a compact gateway on x86 embedded Linux (Debian/Yocto) leveraging raw sockets for DECnet and TCP - Implement OPC UA/DA endpoint for versatile external client support - Optimize for sub-200 ms round-trip time with watchdog and auto-reconnect for maximum reliability - Provide full source code, flashable image, comprehensive user guide, and a dedicated performance stress-test tool **Skills:** ✅ Embedded Systems & Microcontroller development on Linux ✅ Protocol implementation including DECnet Phase IV and OPC UA/DA ✅ C/C++ and Rust programming for real-time, reliable software ✅ Debian/Yocto Linux expertise and scripting for automation ✅ Network performance tuning and watchdog mechanisms **Certificates:** ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m ready to start immediately and ensure delivery within your timeline with thorough documentation and testing. What are the specific DECnet object IDs and test scenarios you plan to use for gateway validation? Best regards,

@shadabkhan92

As a full stack developer with extensive experience in Python -- one of the languages you mentioned for this project -- I am confident in my ability to meet the unique demands of your DECnet Phase IV-to-TCP Industrial Gateway Build. My team and I are well-versed in developing custom software solutions with performance and reliability in mind. We've even used a similar tech stack involving Linux, Debian, and raw sockets for a number of projects, so we know what it takes to build a compact gateway like you need. You can trust us with your project's deliverables including clean compilable source code, an image or package ready to deploy on your Linux controller, user guide for easy installation and configuration, test plans that validate all aspects of the gateway's functionality, and a utility or script for stress-testing. To ensure top-notch performance without interfering with live plant operation, we will leverage our expertise in simulating various scenarios with the help of Django and Flask proficiency that fits in well with Yocto or Debian Linux distros.

@ahmed4499

Hello Sir as i am computer engineer and certified desktop windows programmer so i can definitely help you doing that professionally so may we can discuss more please , thanks and regards

@vishal1145

Your SCADA modernization will fail if the gateway introduces packet loss during write operations—most off-the-shelf bridges buffer DECnet frames incorrectly and cause 500+ ms latency spikes that trip safety interlocks. Before architecting the protocol stack, I need clarity on two constraints: What's the maximum burst rate your VAX can sustain when polling 50+ objects simultaneously, and does your SCADA software expect Modbus-style register mapping or raw byte streams with custom framing? Also, are you running DECnet over Ethernet II or 802.3 encapsulation—this changes how I handle the datalink layer. Here's the architectural approach: - C + LIBDNET: Build a zero-copy bridge using raw AF_DECnet sockets on the VAX side and AF_PACKET sockets for TCP to eliminate kernel buffer overhead and hit your 200 ms target. - YOCTO BUILD: Create a minimal rootfs (under 64 MB) with systemd watchdog integration, preloaded kernel modules for DECnet routing and a read-only overlay filesystem to survive power loss without corruption. - OPC UA SERVER: Implement open62541 with dynamic address space generation from your tag list so SCADA clients can browse live process values without hardcoding node IDs. - RUST STRESS TESTER: Write a multithreaded simulator that replays captured DECnet traffic at 2x speed while injecting random write commands to validate your gateway handles simultaneous read/write without deadlocks. - SYSLOG + PROMETHEUS: Export latency histograms and reconnect events so you can prove SLA compliance during commissioning. I've built three similar protocol gateways for petrochemical plants migrating off legacy DCS systems—one handled Modbus-to-Profinet at 10K tags per second with 40 ms jitter. Let's schedule a 15-minute call to review your DECnet object map and confirm the VAX kernel version supports bidirectional NSP connections before I generate the build toolchain.

@shabahathabib

Hello, I’m a systems and embedded software developer with extensive experience in industrial protocols and real-time gateway solutions. I understand your requirement: a compact Linux-based gateway bridging DECnet Phase IV on a VAX/OpenVMS host with modern Windows SCADA via raw TCP frames, supporting full bidirectional READ/WRITE, sub-200 ms round-trip latency, and an optional OPC UA/DA interface. I can deliver a configurable solution with editable node addresses, object mappings, and tag lists, plus watchdog recovery, automatic reconnect, and detailed syslog output. Deliverables include compilable C/C++ or Rust code, flashable Linux image, user guide, and a stress-test utility for DECnet simulation. I prioritize clear documentation, iterative testing, and reliable performance to minimize risk. I’m ready to start immediately and implement a robust, production-ready gateway. REGARDS SHABAHAT HABIB*

@engrhasan01

Hi, I can develop a compact DECnet Phase IV ↔ TCP raw-frame gateway on an x86 embedded Linux controller with full bidirectional READ/WRITE capability, designed specifically for real-time SCADA monitoring and control with sub-200 ms latency targets. I will implement native DECnet Phase IV communication on the OpenVMS side (object/task handling, reconnect logic, and robust session management) and a configurable raw TCP framing interface on user-defined ports for the Windows SCADA side, with optional OPC UA endpoint for tag-based clients (browsing, read/write, subscriptions). Configuration will be handled through a clean text-based file format (INI/JSON/YAML) and can be extended to a lightweight web UI if desired. The solution will include watchdog recovery, automatic link re-establishment, syslog-based verbose diagnostics, and performance-focused design (non-blocking I/O, epoll, buffering, and deterministic threading). Deliverables include complete C/C++ (or Rust) source with build scripts, a deployable Debian/Yocto package/image, a full user guide with test plan, and a stress-test utility that can validate throughput/latency against a DECnet simulator before connecting to the live plant.

@burzhuy

Pitch: With over two decades of experience in C++ programming and Python, I can expertly tackle your need for a custom DECnet-to-TCP gateway. Over the years, I have developed and maintained various industrial software that required dealing with different protocols and real-time data monitoring for control systems. Not only am I familiar with your hardware specifications, but I also have the expertise to optimize it for minimum latency under network pressure. My skills extend beyond just the protocol handling. I am very comfortable with embedded Linux environments and understand how to leverage them to make compact, reliable systems. Moreover, as a long-term service provider, my goal is not just delivering codes, but delivering solutions. I pledge not just to create a software that meets your requirements on paper but one that truly serves you in practice.

@mariamz24

Hello , We went through your project description and it seems like our team is a great fit for this job. We are an expert team which have many years of experience on C Programming, Python, Linux, Microcontroller, C++ Programming, Software Development, Debian, Rust, Embedded Systems, Yocto Lets connect in chat so that We discuss further. Thank You

@servicedigi

With 4+ years in backend and systems development (Node.js, Python, and lower-level networking work), I’ve built high-reliability services involving raw sockets, custom protocol handling, and performance-sensitive data pipelines. I focus on clean architecture, deterministic behavior, and failure-safe recovery—critical for industrial environments. Proposed Architecture Gateway Core (C++ or Rust) • Native DECnet Phase IV client stack (Linux-side implementation or integrated open stack) • Raw TCP socket handler (configurable port mappings) OPC UA Layer • Embedded OPC UA server (e.g., open62541 if C/C++) • Tag mapping to DECnet objects • Read/Write exposure for SCADA clients Configuration • Editable YAML/JSON config (node IDs, object numbers, port mapping, tags) • Optional lightweight web UI (read-only + config reload) Reliability • Watchdog daemon • Auto-reconnect logic Performance Strategy • Raw sockets • Zero-copy forwarding where possible Deliverables • Clean, compilable source + build scripts • Flash-ready image/package • Installation & validation guide This will be engineered as a deterministic, industrial-grade bridge—not just a protocol proxy, but a stable production gateway.

@sandipm1307

With a deep understanding of industrial automation, I offer you more than just technical expertise. In addition to my proficiency with embedded systems, I have extensive experience in integrating different protocols including Modbus TCP/RTU, OPC UA and Ethernet/IP, and ensuring they function optimally. This experience aligns perfectly with your requirement of converting DECnet Phase IV to TCP frames. My skills are not just limited to the software side; I am well versed with hardware aspects as well. My knowledge of x86-class embedded Linux controllers will be utilized to full extent while executing this project. Moreover, having worked on similar projects before , I understand the importance of minimal latency and consistent timeliness when it comes to process values and control bits which makes me adept to provide reliability and performance under 70% network load. Being an Automation Engineer, my game is always focused on bringing practical solutions while strictly adhering to the client's requirements. Working with languages like C/C++, Python and Rust , my code is always well documented and thoroughly-tested which ensures future-proofing- something that indispensable for your project And Finally being IoT proficient.