| Spec | Description |
|---|---|
| S1 | Expander bus slave address of IMDSM04 |
| S2 | Selected channel (1-8) |
| S3 |
|
| S4 | Frequency range expected |
| S5 | Gain |
| S6 | High alarm |
| S7 | Low alarm |
| S8 | Spare |
| Block | Type | Description |
|---|---|---|
| N | Real | Frequency (Hz) multiplied by gain |
| N+1 | Bit | Frequency high alarm |
| N+2 | Bit | Frequency low alarm |
| N+3 | Bit | Slave communication status |