User guide

eWON 500-2001-4001-4002 User Guide - Export Block Descriptors
eWON 500®2001®4001®4002® Version 4_3_0 - User Guide - 10/5/05 - ©ACT'L sa - Page 214
Then there is a record number for each Tag (the record number can be obtained from the header (NbTag):
struct InstantValueRecord
{
int TagId;
float Value;
int AlStatus;
int AlType;
int Reserved;
}
WARNING:
All data in these records are stored in BigEndian
Until more information is available in this chapter, please refer to "Technical Note 03" for more information
about eWON's data representation of floats and big endian format (http://www.ewon.biz /Support/Technical Notes).
11.3.10.5 Export content
The $dtIV Tag exports either the entire content of the Instant Value file (txt or binary format), depending on the parameters
that might have been defined with the $fl field.
11.3.10.5.1 Detailed examples
11.3.10.5.2 Fields used
11.3.10.6 $fl [Group or Groups]
The $fl (for filter) field must be directly followed by a list of one or more groups A, B, C or D (that have been checked in the Tag's configuration).
There must be no other character in the filter and all groups must be in uppercase.
Example:
Will export all Tags belonging to group A or B.
$dtIV $flAB Will export all Tags belonging to group A or B
$dtIV $flA Will export all Tags belonging to group A
$dtIV $fl Will export no Tag (useless)
$dtIV $flABCD Will export all Tags belonging to group A or B or C or D (but missing Tags that belong to no group)
$dtIV Will export all Tags regardless of group definition
Table 141: $dtIV - detailed examples
Fields Value if not specified
Optional
$fl
Table 142: $dtIV - fields used
$dtIV $flAB