Description
Core Product Summary (Brand / Model / Key Attributes)
The HIMA F3 DIO 20/8 02 is a safety-related remote I/O module in the HIMatrix family. It provides 20 digital inputs and 8 digital outputs in a compact metal housing and communicates with HIMax or HIMatrix controllers exclusively via safeethernet.
The module extends the digital I/O capacity of the safety controller and does not execute a local user program. It is TÜV-certified for safety applications up to SIL 3 (IEC 61508, IEC 61511, IEC 62061), Category 4 and PL e (EN ISO 13849-1), and SIL 4 according to railway standards EN 50126/50128/50129. Power supply is 24 VDC and the standard operating temperature range is 0 to +60 °C.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product type | Safety-related remote I/O module |
| Digital inputs | 20 channels (non-galvanically isolated) |
| Digital outputs | 8 channels (non-galvanically isolated) |
| Communication | safeethernet via 2 × RJ-45 (10/100BaseT) with integrated switch |
| Power supply | 24 VDC (−15 % … +20 %) |
| Response time | ≥ 10 ms |
| Safety certifications | SIL 3 (IEC 61508/61511/62061), Cat. 4 / PL e (EN ISO 13849-1), SIL 4 (EN 50126/28/29) |
| Operating temperature | 0 … +60 °C (standard variant) |
| Enclosure | IP20, compact metal housing |
| Dimensions (approx.) | 207 mm × 114 mm × 66 mm |
| Weight | approx. 1.0 kg |
| Controller compatibility | HIMax and HIMatrix systems |
Detailed Product Overview
The HIMA F3 DIO 20/8 02 serves as a distributed digital I/O extension for HIMA safety controllers. It acquires signals from 20 digital inputs and drives 8 digital outputs, transferring all process data safely over the proprietary safeethernet protocol. The module contains no user program; application logic, diagnostics evaluation, and safety reactions are performed entirely in the connected HIMax or HIMatrix controller.
The digital inputs accept 24 V signals (high level 15–30 VDC). Sensor supplies (5 × 20 V / 100 mA, short-circuit-proof) are available. The eight digital outputs are rated for continuous currents of 0.5 A on most channels and higher currents (up to 1 A or 2 A depending on ambient temperature) on two channels. In the event of an internal fault, all outputs are switched off simultaneously.
Two RJ-45 ports with an integrated switch support flexible safeethernet topologies. The compact metal housing is rated IP20 and is approved for installation in Ex Zone 2. Power is supplied at 24 VDC from a source with safe isolation according to IEC 61131-2. Standard response time is ≥ 10 ms.
Variants exist for extended temperature ranges (−20 °C) and different programming tools (SILworX or ELOP II Factory). The base F3 DIO 20/8 02 version is specified for 0 to +60 °C operation.

F3 DIO 20 8 02

F3 DIO 20 8 02
Engineering Selection Highlights
- Twenty digital inputs with integrated sensor supplies support direct connection of 24 V field devices.
- Eight digital outputs with channel-specific current ratings (0.5 A / 1 A / 2 A) allow flexible actuator loading.
- safeethernet communication with dual RJ-45 ports and integrated switch simplifies distributed safety architectures.
- TÜV certification up to SIL 3 / PL e and railway SIL 4 enables use in process and transportation applications.
- Compact metal housing and Ex Zone 2 suitability permit installation close to the process.
- No local user program keeps all safety logic centralized in the HIMax/HIMatrix controller.
- Fault reaction switches all outputs off, providing a defined safe state.
Dimensions, Mounting & Connection Notes
The F3 DIO 20/8 02 is housed in a compact metal enclosure approximately 207 mm wide × 114 mm high × 66 mm deep and weighs about 1 kg. Field wiring for the 20 inputs and 8 outputs is connected via pluggable screw terminal blocks. Two RJ-45 sockets provide the safeethernet interface. Power is supplied through dedicated terminals. The module is suitable for mounting in Ex Zone 2 when the applicable installation rules are followed. Exact terminal assignments and mounting clearances are given in the official HIMA manual HI 800 345.
System Compatibility & Integration Requirements
| Item / Dependency | Verified Compatibility or Requirement | Practical Note |
|---|---|---|
| Host controllers | HIMax and HIMatrix systems | Connected exclusively via safeethernet |
| Programming tools | SILworX or ELOP II Factory (variant-dependent) | Module does not store or execute user logic |
| Network | safeethernet (10/100BaseT) | Dual RJ-45 ports with integrated switch |
| Power supply | 24 VDC with safe isolation (IEC 61131-2) | −15 % to +20 % tolerance |
| External fuse | 10 A time-lag recommended | Protects the module supply |
| Safety integrity | SIL 3 / PL e | Full diagnostics evaluated in the controller |
FAQ
What is the HIMA F3 DIO 20/8 02?
It is a safety-related remote I/O module with 20 digital inputs and 8 digital outputs for use with HIMax and HIMatrix controllers.
Does the module execute a user program?
No. It functions solely as a remote I/O extension; all application logic resides in the connected controller.
What safety level does it achieve?
TÜV-certified for SIL 3 (IEC 61508, IEC 61511, IEC 62061), Category 4 and PL e (EN ISO 13849-1), and SIL 4 according to EN 50126/50128/50129.
How does it communicate?
Via safeethernet using two RJ-45 ports with an integrated 10/100 Mbit/s switch.
What is the operating temperature range?
0 to +60 °C for the standard F3 DIO 20/8 02 variant. Extended-temperature variants are available.
What happens if a fault is detected?
All digital outputs are switched off and a fault is reported to the controller via safeethernet.
Is it suitable for hazardous areas?
Yes, it is approved for installation in Ex Zone 2.
Verification & Troubleshooting Notes
Front-panel LEDs indicate power status, system state, Ethernet activity, and individual I/O channel status. A FAULT LED signals internal errors that force all outputs to the off state. Detailed diagnostic information and error codes are transmitted to the controller over safeethernet and must be evaluated in the application program.
Verify that the 24 VDC supply remains within the specified tolerance and that the external fuse rating is observed. Confirm correct safeethernet network configuration and that the module’s IP settings match the engineering tool. Check terminal wiring against the official pin assignment tables before power-up.




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