6.10.2.4.16. Value range: Changed range

6.10.2.4. The most important use cases 6.10.2.4.16. Value range: Changed range
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In the following 3 examples the value range variable L1 has been changed.

Via Conditions, the value range of source should be adjusted in a way that only those values are mapped (verified) which will exist further on and values which are cancelled for the next version are verified without target. Explanations on syntax can be found under Section 7.8.11.5, “Mathematical functions (Attribute algorithm) ”.

Then when selecting invalid values in the left table, the right table should be empty (nothing assigned) and for all other values source and target tables should be identical.

In project din_15432_a.prj the value range has been changed from [30:100] to [30:100/5], meaning now there is a defined Stepping.

	Caution
	If only the Stepping is changed, in the tree, no icon will be displayed. For example in this case, you can NOT be sure that no adjustment or verification is needed.

Stepping not defined

Stepping: 5

Test with a value which is not part of the new value range (e.g. 38).
-> On the right, no table must be shown there now, which is not the case.

Not assigned value of "38"
Formulate a condition that only allows correct values. In this case you can achieve it via modulo.
```
MOD(L1,5).EQ.0
```
Enter the condition.

"Edit algorithm" dialog box
Now the row is marked with a red X. The tooltip shows This line could not be assigned (what is correct, because the value of 38 is not within the allowed value range).

Tooltip "This line could not be assigned"
Adjust the value to a valid one like 40, for example.

Assigned value "40"

-> Now the row is displayed.
If all assignments are correct, click on Verify all mappings .

In project din_15433_a.prj, the value range of variable L1 has been set according to the entries in the variable L1NEW, whereby the new value range is always smaller than the old one.
1. Initial situation: Even if invalid value range values are entered for L1, the table on the right is not hidden.
  
  Wrong assignment
2. Enter the conditions.
  As the value ranges are different for each row, you have to define a separate condition for each row. (The stating of the values of variable D2 and B1 serves for the identification of the correct row.) The sequence of the conditions doesn't matter.
  Click on Add target project in order to open a new dialog area. Always choose the project din_15433_a.prj.
  Click on Add condition in order to enter the respective condition (algorithm).
  Condition 1:
```
D2.EQ.315.AND.B1.EQ.15.AND.L1.GE.55.AND.L1.LE.70
```
  Condition 2:
```
D2.EQ.315.AND.B1.EQ.30.AND.L1.GE.70.AND.L1.LE.100
```
  Condition 3:
```
D2.EQ.355.AND.B1.EQ.15.AND.L1.GE.75.AND.L1.LE.115
```
  Condition 4:
```
D2.EQ.355.AND.B1.EQ.30.AND.L1.GE.85.AND.L1.LE.120
```
  Condition 5:
```
D2.EQ.250.AND.B1.EQ.15.AND.L1.GE.35.AND.L1.LE.50
```
  Algorithm entered
3. Now test each row entering valid and invalid values for L1.
  When selecting a valid value, the table on the right is shown.
  
  Selection of a valid value
  
  If an invalid value is selected the table on the right is not displayed.
  
  Selection of an invalid value
In project din_15434_a.prj, the value range of the variable L1 has been set as follows, whereby the new value range is always smaller than the old one.
Initial algorithm for the minimal value: LMIN = D3/4
New algorithm for the minimal value: LMIN = D3/4+5
Initial value for the maximal value: D2
New value for the maximal value:

D2 LMAX (old) LMAX (new)
250 – 500 D2 D2-40
560 – 710 D2 D2-50
800 – 1000 D2 D2-60
1. Initial situation: Even if invalid value range values for L1 are entered, the table on the right is not hidden.
2. Enter the conditions.
  Depending on the value of D2 there are three groups of rows, so that three conditions have to be specified. The sequence of conditions doesn't matter.
  Click on Add target project to open a new dialog area. Always choose project din_15434_a.prj.
  Click on Add condition to enter an adequate condition (algorithm).
  Condition 1:
```
D2.GE.250.AND.D2.LE.500.AND.L1.GE.D3/4+5.AND.L1.LE.D2-40
```
  Condition 2:
```
D2.GE.560.AND.D2.LE.710.AND.L1.GE.D3/4+5.AND.L1.LE.D2-50
```
  Condition 3:
```
D2.GE.800.AND.D2.LE.1000.AND.L1.GE.D3/4+5.AND.L1.LE.D2-60
```
3. Now test each row with valid and invalid values for L1.
  If a valid value is selected, the table on the right is shown.

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6.10.2.4.15. Value range: Changed values	Home	6.10.2.4.17. Value range: Changed range with undefined stepping

D2	LMAX (old)	LMAX (new)
250 – 500	D2	D2-40
560 – 710	D2	D2-50
800 – 1000	D2	D2-60