Converting BYTE into ASCII Character in C

[Guest Guest_Rusty_K]

Hello, I am reading several BYTES from a PLC which each represent one ASCII character. How do I convert this so that WinCC will display the actual ASCII character and not the numeric ASCII code. Any help would be greatly appreciated. Cheers Mates! R.K.

[jacekd]

Hi, create IOField of type Output and assign your byte tag to its Output Value property. Set its Display property to "No". In Events->Output Value->Change put the code below: char* data; data=SysMalloc(1); sprintf(data,"%c",(char)value); SetTagChar("TagString",data); SysFree(data); "TagString" is a WinCC internal tag of type string. Create second IOField of type Output and assign "TagString" to its Output Value property. Set its Data Format property to "String" and Output Format to "*". Regards, jacekd