Communication module CM 1542-5 for connection of S7-1500 to PROFIBUS DP, DPV1 master or DP slave, S7 and PG/OP communication, data record routing, time-of-day synchronization, Diagnostics 6GK75425DX000XE0_datasheet_en
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