CD
Channel Definition
Composite
Attention: Retained for backward compatibility only in version 2.7. This is used only in the waveform message, CHM category, which has been retained for backward compatibility only in version 2.7.
Definition: This data type is used for labeling of digital waveform data. It defines a recording channel, which is associated with one of the values in each time sample of waveform data. Each channel has a number (which generally defines its position in a multichannel display) and an optional name or label (also used in displays). One or two named waveform sources may also be associated with a channel (providing for the use of differential amplifiers with two inputs). The other components of the channel definition data type are optional. The individual components are defined as follows:
1Max Length22 →
2Max Length17 →
3Max Length478 →
4Max Length20 →
5Max Length6 →
5Conf Length→ 6#
6Max Length33 →
6
| Comp# | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 | 500 | - | - | O | - | CD.1 | Channel Identifier | |
| 2 | 501 | - | - | O | - | CD.2 | Waveform Source | |
| 3 | 502 | - | - | O | - | CD.3 | Channel Sensitivity and Units | |
| 4 | 503 | - | - | O | - | CD.4 | Channel Calibration Parameters | |
| 5 | 504 | - | 6# | O | - | CD.5 | Channel Sampling Frequency | |
| 6 | 505 | - | - | O | - | CD.6 | Minimum and Maximum Data Values |