Benutzerhandbuch / User Manual - TR Electronic
Benutzerhandbuch / User Manual - TR Electronic
Benutzerhandbuch / User Manual - TR Electronic
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PROFIBUS / PROFIsafe - Commissioning<br />
6.4 Start-up on PROFIBUS<br />
Before the measuring system can be included in the user data traffic<br />
(Data_Exchange), the master must first initialize the measuring system during startup.<br />
The resulting data traffic between the master and the measuring system (slave) is<br />
divided into the parameterization, configuration and data transfer phases.<br />
It is checked whether the planned nominal configuration agrees with the actual device<br />
configuration. The device type, the format and length information as well as the<br />
number of inputs and outputs must agree in this check. The user is thus reliably<br />
protected against data format errors.<br />
If the check was successful, there is a switch to the DDLM_Data_Exchange mode. In<br />
this mode the measuring system transfers e.g. its actual position.<br />
Figure 16: DP slave initialization<br />
© <strong>TR</strong>-<strong>Electronic</strong> GmbH 2010, All Rights Reserved Printed in the Federal Republic of Germany<br />
Page 144 of 207 <strong>TR</strong> - ECE - BA - DGB - 0079 - 03 05/25/2011
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