SIMATIC S7-1500 Communication CM 1542-5 6GK7542-5DX00-0XE0

Application of S7-1500 IO Modul CM 1542-5

The CM 1542-5 is the communications processor of the SIMATIC S7-1500 for the PROFIBUS bus system. It relieves the CPU of communication tasks and supports additional connections.

Communications options of the S7-1500 using communication modules:

• As master for PROFIBUS DP according to IEC 61158/EN 50170
• Communication with programming devices and HMI devices
• Communication with other SIMATIC S7 systems
• Communication with SIMATIC S5 programmable controllers

The number of CMs that can be operated depends on the CPU type and on the communication services used.

The CM 1542-5 communications module expands the SIMATIC S7-1500 controller to include a PROFIBUS connection for communication with lower-level PROFIBUS devices in bandwidths from 9.6 kbps to 12 Mbps. The module can also be used to implement separate PROFIBUS lines, in other words, to control a number of different field devices via a number of PROFIBUS segments. The CM 1542-5 assumes all communication tasks, thus reducing the CPU workload.

The CM 1542-5 is suitable for S7 communication as well as for conventional PROFIBUS communication. This makes it possible to establish communication between the S7-1500 controller and other devices, for example those from the SIMATIC S7-300/400 range.

PROFIBUS DP master or DP slave with electrical interface for connecting the SIMATIC S7-1500 to PROFIBUS at up to 12 Mbps (including 45.45 kbps) Communication services:

• PROFIBUS DP
• PG/OP communication
• S7 communication
• Open user communication (SEND/RECEIVE) via FDL

Time synchronization Simple programming and configuration over PROFIBUS Cross-network PG communication using S7 routing Module replacement without a PG Data record routing (PROFIBUS DP) Adding or modifying distributed I/O during operation