The AS-Interface can be integrated into the process control system as follows using the AS-Interface block library for SIMATIC PCS 7:

• Direct connection on the PROFIBUS DP via DP/AS-i LINK Advanced (AS-i single or double master)
• Connection via a CP 343‑2 or CP 343‑2P AS-i master module in an ET 200M remote I/O station on the PROFIBUS DP or PROFINET IO
• Direct connection on the PROFINET IO via IE/AS‑i LINK PN IO (AS‑i single or double master)
• Connection via a CM AS‑i Master ST AS‑i master module in an ET 200SP remote I/O station to the IM 155‑6PN (High Feature) interface module on the PROFINET IO

AS‑i integration in SIMATIC PCS 7 via PROFIBUS DP

AS‑i integration in SIMATIC PCS 7 via PROFINET IO

The AS interface operates according to the master/slave principle. The AS-i master module (DP/AS‑i LINK Advanced, CP 343‑2, CP 343‑2P, CM AS‑i Master ST or IE/AS‑i LINK PN IO) controls the slaves (sensors/actuators) connected via AS-i cable.

Supported AS‑i devices

AS‑i master

The AS-i block library for SIMATIC PCS 7 supports the following AS-i masters:

• CP 343-2 in ET 200M station, article number 6GK7343-2AH01-0XA0
• CP 343-2P in ET 200M station, article number 6GK7343-2AH11-0XA0
• DP/AS-i LINK Advanced Single Master, article number 6GK1415-2BA10
• DP/AS-i LINK Advanced Double Master, article number 6GK1415-2BA20
• IE/AS-i LINK PN IO Single Master, article number 6GK1411-2AB10¹⁾ (with Engineering Software V8 or V8.1)
• IE/AS-i LINK PN IO Double Master, article number 6GK1411-2AB20¹⁾ (with Engineering Software V8 or V8.1)
• CM AS-i Master ST in ET 200SP station, article number 3RK7137-6SA00-0BC1¹⁾ (only with Engineering Software V8.1)

¹⁾ Only AS‑Interface block library for SIMATIC PCS 7 V8 with Advanced Process Library (APL)

AS‑i slaves

Digital AS‑i slaves with standard addressing and extended addressing (A/B slaves) are generally suited for deployment on the CM AS‑i Master ST, CP 343‑2 or CP 343‑2P. The CP 343‑2 and CP 343‑2P AS-i masters transfer I/O data from AS‑i slaves with a B address via data records but not via the cyclic process image (partition). To prevent delays in the communication process of the driver blocks for B slaves, we recommend avoiding the use of AS‑i slaves with B addresses for SIMATIC PCS 7 configurations with CP 343‑2 or CP 343‑2P.

Digital as well as analog AS‑i slaves with standard addressing and extended addressing (A/B slaves) can be operated on the DP/AS‑i LINK Advanced or on the IE/AS‑i LINK PN IO.

Diagnostics

Diagnostics are carried out using faceplates in the SIMATIC PCS 7 Maintenance Station. Faults in the AS‑i devices are additionally signaled in plain text.