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25-6 IM MX190-01E
Maximum Value
Mnemonic Description
DAQDA100_MAXCHNAMELEN Maximum length of the channel name string.
DAQDA100_MAXCHRANGLEN Maximum length of the channel range name string.
DAQDA100_MAXUNITLEN Maximum length of the unit name string.
DAQDA100_MAXMODULELEN Maximum length of the module name string.
DAQDA100_MAXRELAYLEN Maximum length of the relay name string. Same as
maximum length of the channel name string. Relay
refers to the output relay of the alarm output module or
the DI/DO module.
DAQDA100_MAXDECIMALPOINT Maximum value of the decimal point position.
The maximum length of the string does not include the terminator (NULL).
Boolean values (Valid/Invalid Value)
Mnemonic Description
DAQDA100_VALID_OFF Invalid (OFF) value.
DAQDA100_VALID_ON Valid (ON) value.
Flag Status
Mnemonic Description
DAQDA100_FLAG_OFF All OFF.
DAQDA100_FLAG_ENDDATA The data line retrieved using ASCII codes or in units of
lines is at the last data set.
Can be synthesized using logical OR operators.
Data Status Values
Mnemonic Description
DAQDA100_UNKNWON The data status is not set.
DAQDA100_DATA_NORMAL Normal.
DAQDA100_DATA_DIFFINPUT Difference computation between channels being performed.
DAQDA100_DATA_PLUSOVER Positive overrange.
DAQDA100_DATA_MINUSOVER Negative overrange.
DAQDA100_DATA_SKIP SKIP (not used).
DAQDA100_DATA_ILLEGAL Illegal data status.
DAQDA100_DATA_ABNORMAL Abnormal data status.
DAQDA100_DATA_NODATA No data status.
DAQDA100_DATA_READER Status when loading and communicating
instantaneous value data
When using the communication port for loading instantaneous value data, the status
when loading and communicating instantaneous value data is the channel status in
which channel information data is retrieved.
25.2 DARWIN Constants