Description
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | F3DIO20802 / F3 DIO 20/8 02 |
| Identification Number | 982200484 (provided; OEM material-number mapping unverified) |
| Manufacturer | HIMA |
| Product Family | HIMatrix F3 |
| Product Type | Safety-related remote digital I/O |
| Digital Inputs | 20 channels |
| Input Signal | 24 VDC |
| Input HIGH Level | 15–30 VDC |
| Input LOW Level | 5 VDC maximum |
| Digital Outputs | 8 channels |
| Output Current | Generally 0.5 A per channel; channels 4 and 8 have higher permitted ratings under specified temperature conditions |
| Ethernet Ports | 2 × RJ45 |
| Ethernet Speed | 10/100 Mbps |
| Communication | SafeEthernet |
| Power Supply | 24 VDC, -15% to +20% |
| Maximum Supply Current | Up to 8 A under maximum load |
| Idle Current | Approximately 0.4 A at 24 VDC |
| External Fuse | 10 A time-delay |
| Response Time | At least 10 ms |
| Dimensions | 207 × 114 × 66 mm |
| Mounting | Horizontal, 35 mm DIN rail |
| Protection Rating | IP20 |
| Operating Temperature | 0 to +60°C |
| Storage Temperature | -40 to +85°C |
| Safety Certification | Up to SIL 3, Category 4, PL e; railway applications up to SIL 4 under applicable certification |
Specifications are drawn from the HIMA HIMatrix F3 DIO 20/8 02 hardware documentation. Output-current capacity depends on the channel and ambient temperature.
Product Introduction
The HIMA F3DIO20802 is a safety-related remote I/O device designed to extend the digital input and output capacity of HIMatrix and compatible HIMax safety controllers. It provides 20 digital inputs with configurable line monitoring and 8 digital outputs. Field input states are transmitted to the central safety controller through SafeEthernet, while output commands are received through the same safety communication architecture.
The module incorporates a two-port Ethernet switch with 10/100BASE-TX connectivity. It is a remote I/O device, not an independent safety PLC: it cannot execute a user application by itself. Its safety function depends on the connected controller, approved configuration, correct wiring, and validated application logic.
Application Scenarios & Field Pitfalls
Typical applications
- Emergency shutdown systems: Collects safety-related field signals and transmits them to a central safety controller.
- Oil and gas installations: Interfaces with safety switches, shutdown signals, and actuator circuits.
- Chemical processing plants: Supports distributed safety interlocks and process equipment monitoring.
- Power generation: Handles remote digital signals for equipment protection and safety-related control.
- Railway safety systems: Supports approved safety-related I/O applications requiring high-integrity communication.
Field checks before replacement
- Confirm the software variant. The F3 DIO 20/8 02 family includes variants for SILworX and ELOP II Factory. Check the installed engineering environment and firmware compatibility.
- Verify the exact hardware suffix. Versions such as F3 DIO 20/8 021, 023, and 024 have specific configuration or environmental distinctions. Do not assume they are interchangeable.
- Check input wiring and line monitoring. The module supports configurable cross-circuit monitoring. Verify test-pulse assignments, input grouping, and de-energized-to-trip wiring.
- Inspect output loading. Outputs 4 and 8 have different current-loading allowances from the other channels. Confirm the load current and ambient-temperature limits.
- Verify SafeEthernet settings. Check IP address, subnet mask, system ID (SRS), network topology, and controller configuration before reconnecting.
- Check the 24 VDC power supply. Confirm supply tolerance, cable sizing, grounding, and external fuse selection. The maximum-load current must be considered when sizing the supply.
- Perform safety validation. Test every input and output, communication fault response, line-monitoring diagnostics, and defined safe states before releasing the system for operation.
Safety warning: Do not treat this module as a standard PLC I/O replacement. Substitution requires confirmation of the safety certification, hardware revision, firmware compatibility, and approved application configuration.
Related Products
- F3 DIO 20/8 021 – Related remote I/O variant with a specified low-temperature configuration.
- F3 DIO 20/8 023 – Related hardware variant with different environmental operating characteristics.
- F3 DIO 20/8 024 – Another variant in the same 20-input/8-output family; verify exact operating conditions.
- F3 DIO 8/8 01 – HIMatrix digital I/O device with a different input/output channel arrangement.
- F60 DIO 24/16 01 – HIMatrix modular-system digital I/O module with 24 inputs and 16 outputs.
- F35 Controller Series – HIMatrix safety controller family used in distributed safety architectures.
- F3 AIO 8/4 01 – Related HIMatrix analog I/O product family; not a digital I/O substitute.
These are related HIMatrix products, not automatic replacements. Check the controller family, engineering software, firmware, and safety configuration before selecting another device.
Procurement and Replacement Notes
For procurement, specify the complete designation F3 DIO 20/8 02 and provide 982200484 as an additional identification reference. Request confirmation of the actual HIMA nameplate part number rather than relying on the secondary number alone.
Before accepting a replacement, verify:
- Hardware and firmware revisions.
- SILworX or ELOP II Factory compatibility.
- All 20 digital input channels.
- All 8 digital output channels and their load ratings.
- Both Ethernet ports and SafeEthernet communication.
- Input line-monitoring and output diagnostic functions.
- Successful testing with the target safety controller.
A successful power-up or Ethernet link test does not establish safety-system compatibility. Complete the required functional safety validation before returning the equipment to service.
