Subscribe to R. STAHL's free newsletter now!

Keep abreast of all the latest developments in explosion protection. Our regular newsletters provide you with interesting facts from the field of Ex protection, R. STAHL's latest news, as well as information about our exciting products and solutions. 

More information

  • Get regular access to articles on important topics in the field of explosion protection.
  • Find out valuable information about our innovative products and solutions.
  • Look forward to tailored offers.
  • Find out our latest seminar dates for your diary.
  • Meet us at exhibitions and events.


Expert Mail - Newsletter bestellen En

Expert-Mail - Newsletter bestellen
More information (optional)
Weitere Angaben (optional)

Digital I/O coupler

Digital I/O coupler: Allowing you to integrate simple digital signals into the FOUNDATION™ Fieldbus H1
R. STAHL's digital I/O coupler connects eight intrinsically safe contacts or proximity switches and four intrinsically safe solenoid valves to a FOUNDATION™ Fieldbus H1 in Zone 1.
The digital I/O coupler boasts a wide range of functions for a variety of different applications

With the Zone 1 digital I/O couplers, you can connect eight intrinsically safe contacts or proximity switches and four intrinsically safe solenoid valves or indicator lamps to a FOUNDATION™ Fieldbus H1. Input frequencies of up to 20 kHz are supported.

The coupler is supplied externally with auxiliary power (four-conductor device) in order to minimise the load on the fieldbus and, if required, can be operated in an intrinsically safe (FISCO) or non-intrinsically safe (High Power Trunk) configuration.

FF function and transducer blocks for DI, DO, DO valve, MDI, MDO, AI (frequency), CI (counter) and LTB (logic functions) are integrated in the couplers, making a whole host of applications possible.

  • Galvanic separation between input, output and fieldbus for safe operation
  • Choice of intrinsically safe (FISCO) or non-intrinsically safe fieldbus (High Power Trunk) for use in operation
  • Wide variety of function and transducer blocks

Filter product lines

Select the product lines that are applicable to your intended use.

Field enclosure
Application range (Zone)
Power supply
Min. ambient temperature
Max. ambient temperature

1 Serie (1 Product)

Digital I/O Coupler Series 9413

  • For connecting up to eight contacts or NAMUR proximity sensors and up to four solenoid valves to a FOUNDATION Fieldbus H1 in Zone 1
  • Ex ia IIC inputs/outputs
  • Operated using High Power Trunk concept or FISCO Fieldbus
  • Integrated function blocks for DI, DO, DO_valve, MDI, MDO, AI (frequency), CI (counter) and LTB (logic)

Contact form

*Mandatory fields

We'll be glad to call you back to support you.

Wir rufen Sie gerne für ein Beratungsgespräch zurück. EN