Operating Instructions

Appendix C – Data File Specifications
42 Siemens Building Technologies, Inc.
Appendix C – Data File Specifications
The OPC Data Manager uses a standard comma−separated (*.CSV) file format. Each file can have lines
for groups, points, statistics, event subscriptions, and event mappings.
Group Information
The following table describes the contents of lines that describe groups.
For example, the line
GROUP,"bi fast additional 5000",30000,1001,1000,,,1,1,,,,,, VT_EMPTY,,,,,,,,,,
describes a bi-directional active group with a point lifetime of 30 seconds, master update rate of 1.001
seconds, slave update of 1 second, and no dead value.
Table 9. Group Information Fields.
Position Field Description
1 “GROUP”
2 Group name
3 Lifetime (in ms)
4 Master OPC update (in ms)
5 Slave OPC update rate (in ms)
6 Default dead option flag:
0 = no dead value by default, 1 = use dead value
7 Default DDE option flag
8 Default direction flag:
0 = unidirectional, 1 = bidirectional
9 Active flag
0 = not active, 1 = active
10 Refresh data from:
0 = OPC Data Manager CACHE, 1 = PHYSICAL DEVICE (see Appendix B)
11 – 13
Reserved, must be blank
14 Default dead value
15 Default dead value type, must be one of the following: VT_I2, VT_I4, VT_R4, VT_R8, VT_CY,
VT_DATE, VT_BSTR, VT_BOOL, VT_I1, VT_UI1, VT_UI2, VT_UI4.
See the Variant Data Types
section.
16 – 25
Reserved, must be blank