Campbell Scientific CR6 CR6 Measurement and Control System - Page 136

Section 7. Installation BeginProg Scan(1,Sec,0,0) Therm107(TempC(),1,U1,U11,0,15000,1.0,0) Therm107(TempC(),1,U2,U11,0,15000,1.0,0) Therm107(TempC(),1,U3,U11,0,15000,1.0,0) Therm107(TempC(),1,U4,U11,0,15000,1.0,0) For T = 1 To 4 TempF(T) = TempC(T) * 1.8 + 32 Next T NextScan EndProg Dimensions Some applications require multi-dimension arrays. Array dimensions are analogous to spatial dimensions (distance, area, and volume). A single-dimension array, declared as, Public VariableName(x) with (x) being the index, denotes x number of variables as a series. A twodimensional array, declared as, Public VariableName(x,y) with (x,y) being the indices, denotes (x • y) number of variables in a square x-by-y matrix. Three-dimensional arrays, declared as Public VariableName (x,y,z) with (x,y,z) being the indices, have (x • y • z) number of variables in a cubic x-byy-by-z matrix. Dimensions greater than three are not permitted by CRBasic. When using variables in place of integers as dimension indices (see CRBasic example Using variable array dimension indices (p. 136),), declaring the indices As Long variables is recommended. Doing so allows for more efficient use of CR6 resources. CRBasic Example 7. Using Variable Array Dimension Indices ' the use of dimension indices in arrays. The variable 'VariableName is declared with three dimensions with 4 in each index. This indicates the 'array has means it has 64 elements. Element 24 is loaded with the value 2.718. ' Dim aaa As Long Dim bbb As Long Dim ccc As Long Public VariableName(4,4,4) As Float 136