The CP 343-2P/CP 343-2 is the AS-Interface master connection for the SIMATIC S7-300 und ET 200M.

By connecting an AS-Interface, a max. of 248 DI/248 DO can be accessed per CP when using 62 A/B slaves with 4DI/4DO respectively.

The integrated analog processing function can be used to easily transfer analog signals (up to 62A/B analog slaves with a max. of 2 channels each or up to 31 standard analog slaves, each with a max. of 4 channels per CP).

The CP 343-2P is an enhancement to the CP 343-2 and has exactly the same functions. An existing STEP 7 user program for a CP 343-2 can be used for a CP 343-2P without limitations. The two assemblies are merely configured differently in STEP 7 HW Config, whereby the CP 343-2P offers additional possibilities. We recommend the CP 343-2P for these reasons.