Technical data

Communication
9.2 Communication according to PROFIdrive
Function Manual
608 Function Manual, 06/2012, 6SL3097-4AB10-0BP4
Properties
● No additional parameters need to be entered in addition to the bus configuration in order
to activate this function, the master and slave must only be preset for this function
(PROFIBUS).
● The master-side default setting is made via the hardware configuration, e.g. B. HWConfig
with SIMATIC S7. The slave-side default setting is made via the parameterization
telegram when the bus is ramping up.
● Fixed sampling times are used for all data communication.
● The Global Control (GC) clock information on PROFIBUS is transmitted before the
beginning of each cycle.
● The length of the clock cycle depends on the bus configuration. When the clock cycle is
selected, the bus configuration tool (e.g. HWConfig) supports:
– High number of drives per slave/drive unit → longer cycle
– Large number of slaves/drive units → longer cycle
● A sign-of-life counter is used to monitor user data transfer and clock pulse failures.