Examples of Handling the TD 390
3.5
Displaying Process Values
Task
Display process values and modify a process value.
Procedure
Proceed as follows:
1. Create a DB with message and prepare for the process values.
2. Generate instruction sequence to display process values in the FB.
3. Generate instruction sequence for calling FB13 in OB1.
4. Display message with process value by TD 390.
5. Modify process value with TD 390.
Create DB57
Create DB57 with the following contents using STEP 5.
DB57
DW
0:
KS ='Target pos. ';
6:
S
7:
KY = 000,003;
8:
KF = +01325;
9:
KS =' m';
3-8
='@F';
Remark
Process message (12 ch.)
Data format (2 ch.)
3 decimal places
Process value 1.325 m
Last part of process
message
TD 390
C79000–K8576–C292–01