Beckhoff EL3773 - Example 1: Diagnosis and Evaluation of Input Data

Commissioning
EL3773136 Version: 2.5
Table of contents
• Example 1: Diagnosis and evaluation of input data [}136]
- Commissioning of the example program [}139]
•Adaptation of the PLC to the selected oversampling factor [}139]
•Adaptation of the calculation of voltage and current from the raw data [}140]
- Description of the function of the example program
•Visualization [}141]
•Selection of the size of the FIFO buffer [}142]
• Performance of the calculations [}143]
- Starting the example program [}144]
 • Procedure for starting the program [}145]
6.11.1 Example 1: Diagnosis and evaluation of input data
Download: (https://infosys.beckhoff.com/content/1033/el3773/Resources/zip/2041395339.zip)
Note
Usage of this example program
This example program was created on a powerful Beckhoff C6920 Industrial PC and re-
quires high computing power.
While testing this program, the following factors should be considered:
• In all tasks, the exceeding counters should not increment and an even utilization should be displayed.
• If an uneven execution of the PLC program is unavoidable, the activation ofIoAtTaskBeginshould be
considered
• You should decrease the buffer size, if necessary, advice regarding this is given below
• If the EL3773 indicates sync errors in the ADS logger window
or in the DiagMessages,