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Direct Engineer-to-Engineer Support

Contact & Support

Reach the developer directly for technical support, license activations, company invoices, or SCADA integration projects. We typically reply within 1 business day.

Direct Contact Channels

Pick the department that matches your question, or use the quick message composer below to format your inquiry.

Technical Support

Product & Commissioning Help

Questions about Modbus TCP/RTU connections, RS-485 adapters, register decoding, CLI scripts or bug reports. Include your Windows/Android version and a hex log if possible.

support@maxenergic.com
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Licensing & Billing

Keys, Activations & Refunds

Need to move your license to a new PC, recover a lost key, request a PDF invoice, or claim the 14-day money-back guarantee? Use the instant portal or email licensing.

licensing@maxenergic.com
License PortalEmail Billing
Sales & Enterprise

Multi-Seat & SCADA Consulting

Site licenses for engineering teams, company purchase orders, custom register-map templates, or Modbus / IEC 60870-5-104 / IEC 61850 integration work.

sales@maxenergic.com
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Direct Product Team

Feature Requests & Feedback

Suggest a new device register map (meter, inverter, VFD), CLI flag, simulator generator, or Android USB/Bluetooth improvement directly to the developer.

modbus@maxenergic.com
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Quick Message Composer

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Self-Service & Official Links

  • Manage License Activations (Self-Service): https://modbus.maxenergic.com/api/customer-portal.php — deactivate an old PC slot or check your license status anytime.
  • Download Latest Windows Build (v2.1.1): Installer (.exe) & Portable (.zip) with SHA-256 checksums
  • ModbusBB for Android: Google Play Store (com.maxenergic.modbusbb)
  • Max IEC 60870-5-104 / 101 Gateway: https://iec.maxenergic.com/
  • Publisher Studio Website: https://maxenergic.com/ (BA'RA – Max Energic Apps on Google Play)
  • Developer: Mohammad Ba’ra — Electrical Engineer & SCADA/SAS Specialist
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Product & Download

Download ModbusBB 2.1.1 (Windows 10/11)

Download the 64-bit Windows installer or portable ZIP with SHA-256 checksums. Free 30-day trial.

Pricing & Licensing

Buy Lifetime License ($10 One-Time)

$10 one-time payment for a lifetime license on up to 3 PCs with free updates and 14-day refund guarantee.

Pricing & Licensing

Self-Service License Portal

View your active computers, deactivate an old PC to move your license, or check your key status.

Support & Contact

Contact, Support & Sales Hub

Direct email channels for technical support, licensing/invoices, volume quotes, and SCADA engineering.

Android App

ModbusBB for Android (USB RS-485, Bluetooth, TCP)

Modbus master, traffic monitor, scanner, logger and slave simulator for Android phones and tablets.

Features & Specs

All Features in ModbusBB 2.1

Complete overview of transports, 11 data types, byte orders, Device Tools, simulator, trends and CLI.

Online Tools

Free In-Browser Modbus Tools

Instant browser tools: Modbus RTU CRC-16 calculator, 4xxxx address converter, and Float32 byte-order decoder.

CLI & Automation

Command-Line Tool (ModbusBB.CLI)

Scriptable CLI reference for automated testing, JSON/CSV logging, device scans and CI pipelines.

Documentation

Documentation & Quick Reference

Technical reference covering connections, workspaces (.mbws), data types, scaling, and troubleshooting.

Documentation

Complete User Manual (HTML & PDF)

Step-by-step illustrated manual with annotated screenshots and downloadable PDF.

Diagnostics

Device Tools (FC08, FC17, FC22, FC23, FC43/14)

Read Device Identification (FC43/14), Report Slave ID (FC17), Diagnostics (FC08), Mask Write (FC22) and raw requests.

Device Library

Device Register-Map Library (Eastron, Schneider, SunSpec, ABB, SMA)

Built-in register templates for popular energy meters, solar inverters, and variable-frequency drives.

Technical Guide

Register Addressing: 40001 vs Address 0

Understand 0-based, 1-based and Modicon 4xxxx notation and fix off-by-one register errors.

Technical Guide

Modbus Function Codes Explained (FC01–FC43)

Detailed breakdown of standard read/write function codes and diagnostic function codes.

Technical Guide

Float32, 64-Bit & Byte Order (ABCD / CDAB / BADC / DCBA)

How to decode 32-bit and 64-bit integers and floats across Big-Endian, Little-Endian and word-swapped devices.

Technical Guide

RS-485 Wiring, Termination & Polarity Guide

Field guide to RS-485 2-wire daisy chains, A/B polarity swaps, 120 Ω termination and ground reference.

Technical Guide

Fix Modbus Timeouts (TCP & RTU Troubleshooting)

Step-by-step commissioning checklist for diagnosing TCP and serial RTU timeouts using raw hex frames.

Technical Guide

Modbus Exception & Error Codes (01 to 0B)

What exception responses 01, 02, 03, 04, 05, 06, 0A and 0B mean in hex frames and how to resolve them.

Technical Guide

Modbus TCP vs RTU vs RTU-over-TCP vs UDP

Compare Modbus frame structures, serial vs Ethernet transports, and when to use RTU-over-TCP.

Technical Guide

Modbus Slave Simulator Guide

How to simulate multi-unit Modbus slaves with value generators and exception injection for FAT/SAT.

Comparison

ModbusBB vs Modbus Poll Comparison

Side-by-side comparison of ModbusBB 2.1 and Modbus Poll for Windows commissioning engineers.

Studio & Engineer

About Max Energic & Mohammad Ba’ra

Meet the SCADA/SAS electrical engineer behind ModbusBB and explore other Max Energic tools.

Need Help or Licensing Support?

Contact & Inquiry Composer →Send a formatted message or copy email support@maxenergic.comTechnical support & bug reports licensing@maxenergic.comKeys, invoices & 14-day refund guarantee sales@maxenergic.comSite licenses & SCADA engineering Self-Service License PortalManage your 3 PC activations