Description
The ControlByWeb® X-404-I is a purpose-built industrial controller designed to serve as a Modbus Master for RS-485 networks. Capable of supporting up to 32 Modbus devices or sensors, it provides a reliable, web-based interface to monitor and manage industrial equipment, including pressure, flow, level, and current sensors. As part of the 400 Series, the X-404-I integrates seamlessly with the 1-Wire bus for precise temperature and humidity monitoring, offering a comprehensive solution for facility and process automation.
Built for industrial deployment, the X-404-I eliminates the need for third-party software, licensing fees, or vendor lock-in. Configuration is handled entirely through an embedded, browser-based user interface that features a no-code Task Builder for custom automation logic. With support for open protocols such as MQTT, Modbus TCP/IP, and SNMP, the X-404-I provides secure, transparent control and data logging in a compact, ruggedized package.
Key Features
- Modbus Master Capability: Connects to and monitors up to 32 RS-485 devices or sensors.
- 1-Wire Bus Support: Expandable support for up to 16 temperature sensors and digital humidity sensors.
- Browser-Based Interface: Complete device management, configuration, and real-time monitoring via any standard web browser.
- No-Code Logic Builder: Create powerful automated sequences using the intuitive Task Builder.
- Industrial Protocol Support: Native integration with MQTT, Modbus TCP/IP, SNMP, XML, and HTTP.
- Peer-to-Peer Communication: Easily share I/O data across multiple ControlByWeb controllers without a central server.
- Secure & Reliable: Cybersecurity-focused design without a built-in OS or file system, reducing attack vectors.
- Flexible Data Logging: Scheduled and conditional logging with automated FTP exports or email alerts.
Specifications
| Technical Specification | Detail |
|---|---|
| Product Model | X-404-I |
| Product Type | Modbus Master Controller |
| Power Requirements | 9–28 VDC |
| Max Current Draw | 134 mA (no sensors); Up to 1.834 A (with max modbus sensors) |
| RS-485 Support | Up to 32 devices/sensors |
| Temperature Sensor Capacity | Up to 16 sensors |
| Temp/Humidity Range | -67°F to 257°F (-55°C to +125°C) | 0–100% RH |
| Network Interface | 10/100 Base-T Ethernet Port |
| Operating Temperature | -40°F to 150°F (-40°C to 65.5°C) |
| Dimensions | 1.41 in W x 3.88 in H x 3.1 in D (35.7 x 98.5 x 78 mm) |
| Weight | 5 oz (142 g) |
| Enclosure Material | Lexan 940 Polycarbonate Plastic |
| Flame Rating | UL94 V0 |
| Protocols | HTTP, HTTPS, XML, MQTT, Modbus TCP/IP, SNMP, SMTP, Modbus RS-485 |
| Logging | 512K log file size (up to 8,448 logs), nonvolatile flash storage |
| Advanced Features | Task Builder, BASIC Interpreter, Remote Services |
| Electromagnetic Compliance | IEC CISPR 22, CISPR 24, EU EN55024, EN55022, FCC 47CFR15 Class B |
Luc D. (verified owner) –
Easy to program, modbus work well with eurotherm controller and kohler ats/generator
Only one tights missing is the way to convert of a register to individual bits.
great product