Yokogawa PC-Based MX100 - Manual (Page 1215)

25-17
IM MX190-01E
25
DARWIN for Extended API Constants and Types
Constants for Visual Basic and Visual Basic.NET/C#
This section describes the mnemonics for and the meanings of the constants. For
the details on the DARWIN functions, see the relevant user’s manual.
In C#, it is the constant data for the DAQDA100Reader class. Prefix each constant
with DAQDA100Reader (Ex.:
DAQDA100.Reader.DAQDA100READER_NUMCHANNEL).
Constants
Mnemonic Description
DAQDA100_CHTYPE_MEASALL Specifies all measurement channels
(computation channels are not included)
DAQDA100_CHNO_ALL Specification of all channel numbers.
Number of Items
Mnemonic Description
DAQDA100READER_NUMCHANNEL The number of channels.
DAQDA100READER_NUMALARM The number of alarms.
DAQDA100READER_NUMUNIT The number of subunits.
DAQDA100READER_NUMSLOT The number of slots per subunit.
DAQDA100READER_NUMTERM The number of terminals per slot (module).
Maximum Values
Mnemonic Description
DAQDA100READER_MAXUNITLEN Maximum length of the unit name string.
The maximum length of the string does not include the terminator (NULL).
Boolean values (Valid/Invalid Value)
Mnemonic Description
DAQDA100READER_VALID_OFF Invalid (OFF) value.
DAQDA100READER_VALID_ON Valid (ON) value.
25.5 DARWIN Constants for Loading Instantaneous Value Data