Overview 
  1.6 Range of HMI software functions 
OP 73micro, TP 177micro (WinCC flexible) 
Operating Instructions, 09/2007, 6AV6691-1DF01-0AB0 
15 
Tags, values and lists 
Table 1-2  Range of functions for tags, values and lists 
Object  Specification  OP 73micro  TP 177micro 
Tags  Number  500  250 
Limit-value monitoring    Input  Input/Output 
Linear Scaling  Input/Output  Yes  Yes 
Text lists  Number  150  150 
Screens  
Table 1-3  Range of functions for screens 
Object  Specification  OP 73micro  TP 177micro 
Number  250  250 
Fields per screen  20  20 
Tags per screen  20  20 
Complex objects per screen (e.g. bars)  5  5 
Screen 
Template  Yes  Yes 
Infotext 
Table 1-4  Range of functions for infotext 
Object  Specification  OP 73micro  TP 177micro 
Length (no. of characters)  320  320 
For alarms  Yes  Yes 
For screens  Yes  Yes 
For screen objects (e.g. IO fields)  Yes  Yes 
Infotext 
Help indicator  Yes  No