Posted 22 Jan 2014 (edited) I have questions about AWL file in Siemens PLC as attached pictures. Q1) What is the AWL file in the first picture? Q2) What is the meaning of the structure in the second picture? Thanks for your help in advance. Edited 22 Jan 2014 by Tom749 Share this post Link to post Share on other sites
Posted 22 Jan 2014 (edited) Q1 AWL file means a source code file from S7, to generate an FC or something you should compile the file by right clicking the file and select compile Q2 please explain? Edited 22 Jan 2014 by Moggie Share this post Link to post Share on other sites
Posted 22 Jan 2014 The 'Structure' is the source code for network 1 of the ALARM PROGREAM function, if you compile this source file then open the compiled block , you should then be able to view it in LAD, this may make it easier to understand. Share this post Link to post Share on other sites