:CMODe Subsystem
The :CMODe subsystem commands control common-mode waveforms.
Waveform Identification
In the :CMODe command syntax, common-mode waveforms are identified by the associated instrument connection number (from 1 to 8). For example, the following command sets the color of the common-mode waveform of an instrument installed at connection 1.
:CMODe1_1:COLor TCOLor8
Traditional instruments take up two connections, either connections 1 and 2 or connections 3 and 4. For these type of instruments, the common-mode waveform is identified using the number for the left-most occupied connection. For example, :CMODe1_1 or :CMODe3_1, respectively. Single-connection instruments could have two channels. In this case, the common-mode waveform of an instrument installed at connection 4 would be identified as :CMODe4. Also, when Infiniium 2026 is configured with a simulated connections, one-connection simulated instruments are available that have two channels. The following table shows several examples of common-mode waveform identification.
| Instrument Type | Installed Connections |
Source Channels for Differential Waveform |
Differential Channel Waveform Identification |
|---|---|---|---|
| Traditional Two-Connection, Dual Channel (for example, 86112A) |
1 & 2 | 1_1 and 2_1 | :CMODe2_1
|
| 3 & 4 | 3_1 and 4_1 | :CMODe3_1
|
|
| Simulated or Future Single-Connection, Dual Channel |
1 | 1_1 and 1_2 | :CMODe1_1
|
| 2 | 2_1 and 2_2 | :CMODe2_1
|
|
| 3 | 3_1 and 3_2 | :CMODe3_1
|
|
| 4 | 4_1 and 4_2 | :CMODe4_1
|
Example Command Sequence
:CMODe1_1:DISPlay ON :CMODe1_1:COLor TCOLor 7