The Interface module IM154- 8 PN/DP CPU with CPU functionality is based on the S7-300 CPU 315-2 PN/DP and offers the same quantity structures and functions.
The fail-safe interface module IM154-8FX PN/DP F-CPU is available for safety-related applications.
The IM154-8 PN/DP CPU as well as the fail-safe variant has two communication interfaces,
The IM 154-8 PN/DP CPU supports both PROFINET IO (up to 128 IO devices can be connected) and PROFINET CBA, as well as PROFIBUS DP (as master for up to 124 slaves).
The IM 154-8 PN/DP CPU is not only compatible with the programs of the S7-300 CPUs, but it also offers a high degree of data retentivity (protection against voltage failure). A separate LED signals maintenance alarms. Modules can be replaced easily thanks to the Micro Memory Card. Firmware can be updated over the network.
Furthermore, a web server functionality for information, status, diagnostics, clock synchronization via the Ethernet (NTP) is available. The open Ethernet communication (TCP/IP, UDP, ISO-on-TCP) permits reliable and high-speed data exchange.
Isochronous mode is possible on the PROFIBUS.There is less loading on the central controller because individual plant sections can be configured, commissioned, diagnosed and operated individually.