Hubner AMP 41, Operating And Assembly Instructions Manual

Page: 37 / 106

Absolute Encoder AMP(H) 41
AMP(H)41_MANUAL-en_R11 - 2019-03-28 37
6.4 Start-up on PROFIBUS
Before the measuring system can be included in the user data traffic (Data_Exchange), the
master must first initialize the measuring system during start-up. The resulting data traffic
between the master and the measuring system (slave) is divided into the parameterization,
configuration and data transfer phases.
It is checked whether the planned nominal configuration agrees with the actual device
configuration. The device type, the format and length information as well as the number of
inputs and outputs must agree in this check. The user is thus reliably protected against data
format errors.
If the check was successful, there is a switch to the DDLM_Data_Exchange mode. In this
mode the measuring system transfers e.g. its actual position
Fig. 11: DP slave initialization