Siemens CM 1542-5 Manual page 10

Product overview
2.1 Properties
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.
Supported communications services
In its current configuration, the CM 1542-5 communications module supports the following
communications services:
● PROFIBUS DP master (class 1)
– PROFIBUS DP according to EN 50170 DPV1, DP master
– DP master mode for DP slaves complying with the PROFIBUS DPV0 and DPV1
– DP master mode for Siemens DP slaves
– Direct data exchange (DP slave to DP slave)
– SYNC / FREEZE
● PROFIBUS DP slave
PROFIBUS DP according to EN 50170 DPV1, DP slave
Note
DP master or DP slave
Please note, however: The CM 1542-5 only supports operation either as DP master or
DP slave.
● S7 communication
– PG communication for uploading / downloading of S7 configuration, diagnostics and
– Operator control and monitoring functions (HMI communication)
– Data exchange over S7 connections
● Data record routing / field device parameter assignment
You can use the CM as a router for data records intended for field devices (DP slaves).
Data records from devices that are not connected directly to PROFIBUS and therefore
have no direct access to the DP slaves are forwarded to the DP slaves by the CM.
The services of the CM 1542-5 listed above can be used independently at the same time.
10
standard
As a DP master, the CM 1542-5 is capable of enabling direct data exchange for "its"
DP slaves.
The outputs or inputs can be synchronized by the user program using system function
DPSYNC_FR.
routing
Manual, 11/2014, C79000-G8976-C290-02
CM 1542-5