| Spec | Description |
|---|---|
| S1 | Expander bus slave address of IMDSM04 |
| S2 | Selected channel (1-8) |
| S3 |
|
| S4 | Expected period range (see below) |
| S5 | Gain |
| S6 | High alarm |
| S7 | Low alarm |
| S8 | Spare |
| 1 | 0.1msecs - 6.553secs, ± 0.1msecs |
| 2 | 1.0msecs - 65.53secs, ± 1.0msecs |
| 3 | 10.0msecs - 655.3secs, ± 10.0msecs |
| 4 | 0.1secs - 6.553ksecs, ± 0.1secs |
| 5 | 1.0secs - 65.53ksecs, ± 1.0secs |
| 6 | 10.0secs - 1655.3ksecs, ± 10.0secs |
| Block | Type | Description |
|---|---|---|
| N | Real | Period (seconds) multiplied by gain |
| N+1 | Bit | Period high alarm |
| N+2 | Bit | Period low alarm |
| N+3 | Bit | Good/bad communication status |