Profinet I/O modules

Siemens has added a new interface module with CPU functionality to the Simatic ET200S product family of distributed I/O devices. The IM151-8 PN/DP CPU handles control tasks and communications functions via Profinet. The module is also available in a fail-safe version IM151-8 PN/DP F-CPU.

With the new IM151-8 PN/DP CPU module that has the performance power of a Simatic S7-300 CPU 314, users can implement distributed structures on Profinet. The Profinet communication interface with three ports for linear bus topologies and programming device functions is onboard and can be expanded with a Profibus DP master module. As a Profinet I/O Controller, the new interface module supports the real-time properties RT (Real Time) and IRT (Isochronous Real Time) and can control up to 128 I/O devices. Since it supports other open TCP/IP-based communication methods, the flexible module is also available for other application options.

The fail-safe version IM151-8F PN/DP F-CPU has an expanded RAM of 192 kB. It can be expanded centrally and in distributed configurations with standard and fail-safe modules. Fail-safe communication is handled on the basis of PROFIsafe. The module is certified up to SIL 3 in accordance with IEC 61508, for use up to SIL 3 in accordance with EN62061 and PL e in accordance with EN ISO 13849-1.