The DP/AS‑i Link Advanced is a PROFIBUS DP‑V1 slave (according to IEC 61158/IEC 61784) and an AS‑Interface master (based on AS‑Interface Specification V3.0 according to IEC 62026‑2). It enables transparent data access to AS‑Interface from PROFIBUS DP.

Exchanging data with the PROFIBUS DP master

PROFIBUS DP Masters (DP-V0) can exchange I/O data cyclically with the AS-Interface. PROFIBUS DP masters with acyclic services (DP-V1) are additionally able to initiate AS-Interface master calls (e.g. reading/writing the AS-i configuration during normal operation). As such, the DP/AS‑i Link Advanced is particularly well suited for a distributed structure and for connection of a lower‑level AS‑Interface network.

Single master

For applications with typical volumes of project data, it is sufficient to use the DP/AS‑i Link Advanced in its version as an AS‑Interface single master. The single master can operate up to 248 DI / 248 DQ, using 62 A/B slaves with 4 DI / 4 DQ each.

Double master

The AS‑Interface double master version of DP/AS‑i Link Advanced is suitable for applications with large volumes of data. In this case, twice the volume of project data can be used on two AS-Interface lines running independently of each other. The double master can operate up to 496 DI / 496 DQ, using two AS‑i networks each with 62 A/B slaves with 4 DI / 4 DQ each.

Integration of AS‑Interface on PROFIBUS through DP/AS‑i Link Advanced as single/double master