Yokogawa PC-Based MX100 - Manual (Page 1226)

App-5
IM MX190-01E
Appendix
App
Channel Setup Data
Setup information for each channel.
See the MXChConfig structure.
The MXChConfigData structure includes all channels.
It includes the channel identification information and the by-type settings for each
channel.
Data Identifier
The value that identifies the data values created by the user with data manipulation
functions of the extension API.
It is an integer starting from 0. The above depends on the system.
It is assigned for each data type. The following types are available.
• DO data identifier
• AO/PWM data identifier
• Initial balance data identifier
• Transmission output data identifier
Device Descriptor
Value used to identify the measuring instrument.
The device descriptor is required when executing the functions.
For the API, the entity is a reference to the CDAQMX object. The DAQMX type is
used for storage and designation.
For the extension API, the entity is a reference to the CDAQMX100 object.
The DAQMX100 type is used for storage and designation.
DO Data
Data that indicates the DO channel output.
See the MXDO structure.
The MXDOData structure includes all channels.
It consists of valid and invalid values and the ON/OFF values.
When data is retrieved, the command DO channels are shown as valid or invalid.
When data is sent, only channels specified as valid are sent.
DO Data Number
A value used to identify the DO channel position.
It is an integer value between 1 and 60.
Numbers are defined.
Appendix 1 MX100 Terminology