Application - Siemens CM 1542-5 Operating Instructions Manual

Product overview, functions

2.2 Application

2.2 Application
Application
The communications module CM 1542-5 is intended for operation in an S7-1500 automation
system. The CM 1542-5 allows the connection of an S7-1500 station to a PROFIBUS
fieldbus system.
As an alternative, the CM can be operated in the following modes:
● Class 1 DP master
● DP slave
Supported communications services
In its current configuration, the CM 1542-5 communications module supports the following
communications services:
● PROFIBUS DP master (class 1)
– DP master according to EN 50170, DP-V1
– DP master mode for DP slaves according to PROFIBUS DP-V0 and DP-V1
– DP master mode for Siemens DP slaves
– Direct data exchange (DP slave to DP slave)
– SYNC/FREEZE
● PROFIBUS DP slave
DP slave according to EN 50170, DP-V0 / DP-V1
Note
DP master or DP slave
The CM only supports operation either as DP master or DP slave.
● FDL
The CM handles the FDL communication using program blocks of Open User
Communication (OUC) see section Configuration, programming (Page 27).
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As a DP master, the CM 1542-5 is capable of enabling direct data exchange for its
assigned DP slaves.
The outputs or inputs can be synchronized by the user program using system function
DPSYNC_FR.
Operating Instructions, 11/2018, C79000-G8976-C290-04
CM 1542-5