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The HIMA HIMatrix F2 DO 8 01—also searched as F2DO801—is a safety-related remote I/O device for distributed relay-output applications. This guide explains what it does, where it fits, how it differs from nearby HIMatrix output options and what engineers and buyers should verify before ordering.
Choose the F2 DO 8 01 when a HIMatrix architecture needs eight distributed relay outputs and the exact contact, load, environmental and certification requirements match the device revision. It is remote I/O—not a stand-alone safety controller—and it must be engineered as part of the complete safety function.
The F2 DO 8 01 belongs to the HIMatrix remote I/O range. Its purpose is to bring safety-related relay outputs closer to field equipment while exchanging safety-related data with a HIMatrix controller over SafeEthernet. The controller executes the application logic; the remote I/O provides the physical output channels in the distributed location.
This distinction matters during selection. A project that needs local safety logic, inputs and outputs may require a compact controller such as an F30 or F35. A project that already has a suitable HIMatrix controller but needs relay outputs in another cabinet or plant area may be a better candidate for the F2 DO 8 01.
| Item | Verified information |
|---|---|
| Product type | Safety-related HIMatrix remote I/O |
| Outputs | 8 relay outputs |
| Network interfaces | Integrated 2-port 100 Base-TX switch |
| Safety communication | SafeEthernet |
| Certified scope | Listed in applicable configurations up to SIL 3, Category 4 and PL e; rail scope is document-specific |
| Engineering rule | Verify the exact device revision, firmware, load and current certificate set |
* A component certificate does not by itself establish the safety integrity of the complete safety function.
HIMA's Technical Facts summary lists relay outputs up to a contact potential of 230 V. A later TÜV revision list describes F2 DO 8 01 Revision 01 as eight relay outputs up to 250 VAC/DC. These statements come from different documents and should not be merged into an automatic design rating.
Use the exact hardware revision, current operating manual, certificate revision and load conditions to establish the permitted rating for a real project.
A distributed arrangement can shorten individual field runs and organize outputs by cabinet, machine or plant area. The network topology, cycle time, response-time calculation, availability concept and cybersecurity controls still require project-specific engineering.
Relay outputs can be positioned closer to the shutdown devices assigned to a remote cabinet or process area.
The device may form part of an engineered burner-management output architecture when the certified scope and load requirements are satisfied.
Potential-free relay contacts may suit interfaces where conventional 24 VDC semiconductor outputs are not the required solution.
Distributed outputs can support machine, logistics or rail-related functions when the complete application meets the applicable approval conditions.
Application names do not prove suitability. Contact loading, switching frequency, inductive-load behavior, suppression, fusing and the defined safe state must all be checked.
| Model | Main distinction | Selection direction |
|---|---|---|
| F2 DO 8 01 | 8 relay outputs | When eight relay channels and the verified contact rating match the application |
| F2 DO 16 02 | 16 relay outputs with a lower contact-potential range | When more relay channels are required and the lower rating is suitable |
| F2 DO 16 01 | 16 digital 24 VDC outputs | For applications designed around 24 VDC digital outputs |
| F2 DO 4 01 | 4 digital power outputs at 24 VDC | When fewer channels with higher output current are required |
This table is a selection aid, not a substitution statement. Verify wiring, output behavior, revision, software compatibility and certification before replacing any device.
No. It is a HIMatrix remote I/O device. The safety application is executed by a compatible HIMatrix controller.
Official HIMA product and revision documentation identifies eight relay outputs.
Yes. The device is listed with an integrated 2-port 100 Base-TX switch and SafeEthernet communication.
Both figures appear in official documents from different dates and purposes. Use the exact revision and the current project documentation rather than assuming the higher figure applies.
The device is listed within applicable certified configurations up to SIL 3, Category 4 and PL e. The complete safety function must still be designed, calculated, validated and maintained for the required target.
Send the complete part number, nameplate revision, application voltage, load type, required safety level, quantity and delivery country. These details help avoid selecting the correct product family but the wrong device version.
Specifications, approvals, firmware compatibility and lifecycle status are subject to change. Verify the latest manufacturer documentation for the exact device revision and intended application. HIMA and HIMatrix are trademarks of their respective owners.
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