Siemens 6ES7545-5DA00-0AB0 SIMATIC ET 200SP CM PROFIBUS DP 125-Slave PLC Communication Module

The Siemens 6ES7545-5DA00-0AB0 is a SIMATIC ET 200SP communication module, type CM PROFIBUS DP, that plugs onto an ET 200SP CPU to add a PROFIBUS DP interface on a 9-pin D-sub socket. It can operate as a DP master for up to 125 DP slaves or as a DP slave itself, at transmission rates up to 12 Mbit/s with automatic baud rate detection.

Technical Specifications

Selection Notes

Supporting up to 125 DP slaves as a master, this module handles a full PROFIBUS DP segment from a single ET 200SP station, which is the reason to add it rather than route legacy PROFIBUS devices through a separate gateway. It can also run as a DP slave, so an ET 200SP station built around this CPU module can itself be integrated as a remote node on an existing PROFIBUS master system during a migration to PROFINET. The 244-byte input and 244-byte output transfer memory and 128-byte-per-address-area limit set the ceiling on how much process data can move per DP cycle; large legacy DP installations should check these limits against total connected slave data before specifying this module.

Applications

Adding PROFIBUS DP master or slave capability to an ET 200SP CPU for integrating legacy PROFIBUS drives, sensors, or remote I/O during a phased migration to PROFINET.