Description
The HIMA X-DO 2401 (part number 985210203, also written as X-DO2401) is a high-density 24-Channel Digital Output Module engineered for the HIMA HIMax Safety System platform.
Designed for critical safety applications up to SIL 3 (IEC 61508 / IEC 61511), the X-DO 2401 serves as a high-integrity actuator control interface for solenoids, relays, contactors, and visual alarms across Emergency Shutdown (ESD), Fire & Gas (F&G), and Burner Management Systems (BMS).
Technical Specifications
| Parameter | Specification |
| Manufacturer | HIMA Paul Hildebrandt GmbH |
| System Platform | HIMax Safety Instrumented System (SIS) |
| Model Name | X-DO 2401 (X-DO2401) |
| Part Number | 985210203 |
| Module Type | Safety-Related Digital Output Module |
| Output Channels | 24 channels (galvanically isolated in groups) |
| Nominal Output Voltage | 24 V DC |
| Output Current | 0.5 A per channel (continuous) |
| Safety Integrity Level | Certified up to SIL 3 / SIL 3 IEC 61508 / IEC 61511 |
| Line Diagnostics | Integrated wire-break and short-circuit monitoring per channel |
| Operating Temperature | 0°C to +60°C (32°F to +140°F) |
| Mounting / Form Factor | Plugs directly into HIMax System Base Plates (X-SB / X-MB) |
Core Features & Operating Capabilities
- SIL 3 Safety Compliance: Built with internal hardware redundancy and cross-checking processing loops, ensuring functional safety in high-demand and continuous-mode safety loops.
- Comprehensive Line Monitoring: Continuously checks field wiring integrity for short circuits and wire breaks (open circuits) both in the ON and OFF output states.
- Live Hot-Swappability: Supports online module replacement without interrupting the system processor or degrading adjacent running safety functions.
- Flexible Redundancy Options: Configurable in non-redundant (simplex) or fully redundant pairs on HIMax base plates to maximize system availability.
- Onboard Diagnostic LEDs: Front-panel LEDs provide clear visual status for module power/health (OK, FAULT) as well as individual channel state and line fault indications.
- SILWorX Integration: Fully engineered, parameterized, and monitored using HIMA’s SILWorX configuration and programming software suite.
Related HIMA HIMax Hardware Components
- X-CPU 01 / X-CPU 31 — HIMax Central Processing Modules.
- X-DI 3201 (985210103) — HIMax 32-Channel Digital Input Module.
- X-AI 3201 (985210003) — HIMax 32-Channel Analog Input Module.
- X-BASE / X-SB — HIMax System Base Plates and Rack Extensions.
- SILWorX — HIMA Engineering & Safety Configuration Software Suite.
