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The difference between internal tag and external tag when assigning with a variable!

12/14/2008 7:10 PM	Rate (0)
Viet An Posts: 10 Rating: (0)	Hi all, I have a project using WinCC V5.1. I used C function to write the program.I have 2 tags; One is an external tag (Floating-point number 32-bit IEEE 754), one is an internal tag (Floating-point number 32-bit IEEE 754). I have a variable in C function. Then I used GetTagFloat command to assign the value from variable to tag. I used GetTagFloat to assign variable to an internal tag and an external tag. But the value of internal tag is difference with external tag when I display them. Please help me! The program detailed follow as: ukk=netout; temp=10000*ukk; // temp is avariable. SetTagFloat("MD18_ValueAO",temp);//Return-Type :BOOL // MD18_ValueAO is external tag. SetTagFloat("temp",temp);//Return-Type :BOOL // temp is internal tag. Please Help me! , I'm waiting for your reply.
Viet An Posts: 10 Rating: (0)	Last edited by: Viet An at: 12/14/2008 7:40 PM
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12/14/2008 10:36 PM	Rate (0)
CS Moderator Moderator Joined: 9/1/2005 Last visit: 10/31/2025 Posts: 4114 Rating: (195)	closed cause question posted twice. The second thread with the subject The difference between internal tag and external tag when assigning with a variable!is published within the conference SIMATIC WinCC. Best regards CS Moderator
	My Forum is the place to personalize your profile, track your topics, and maintain content that interests you. Best regards CS Moderator
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