Technical data

5 Selecting the Type of Communication
Chapter 3 explained that there are various mechanisms available for data
transmission that can, in practical terms, be divided into five different types
as follows:
➣ Data transmission with HDBs on links (S5-S5)
➣ Data transmission with HDBs by direct access to layer 2 services (FL2)
➣ Data transmission with global I/Os (GP)
➣ Data transmission with cyclic I/Os (ZP) with the CP 5430 TF
➣ Data transmission with distributed I/Os (DP)
This chapter contains basic information about the different types of
communication to help you select the type of data transmission most
suitable for your applications.
Criteria influencing the selection of the type of data transmission are as
follows:
➣ Speeds necessary for the data transmission (performance)
➣ Size of the messages
➣ Number and type of communications partners
➣ Monitoring mechanisms
➣ Priority of the transmission
Section 5.6 provides a brief overview of SINEC TF. Volume 2 of the CP
5430 TF manual contains the complete description of communication with
SINEC TF and the services available.
B8976060/02 Selecting the Type of Communication
5 - 1 Volume 1