Section 14 Creating a User Chart/ Updating a Chart Manually  14-114 
 
14.10.9   Editing attributes of an object 
 
The attribute input rules of the ENC object that is handled by manual update are specified in “S-57 
Appendix A Chapter 2 – Attributes”.    The following six types of ENC object attributes are available. 
 
Attribute type   
enumerated('E')  One of the options can be selected. 
list('L')  Although the attribute is the same as enumerated, multiple options can be 
selected. 
float('F')  A decimal digit can be input. 
integer('I')  An integer can be input. 
coded 
string('A') 
Free text 
free text('S')  Free text 
 
To display an object correctly at manual update, the attributes must be input as described in “S-57 
Appendix A Chapter 2 – Attributes”. 
For types ‘E’, ‘L’, ‘F’, and ‘I’, options and input ranges are displayed in the input dialog. For types ‘A’ 
and ‘S’, enter values according to the rules by referencing “C.6.5 Attributes of an ENC object”. 
 
14.10.9.1 Type E 
 
 
 
 
 
Select an attribute value from the list. 
Check when the attribute value is unknown.