The Micro AMP 1 RS-232 link can receive commands and send status information.
Default settings
| Baud rate | 19,200 baud |
|---|---|
| Start bits | 1 |
| Data bits | 8 |
| Parity | None |
| Stop bits | 1 |
| Handshake | None |
Received command format
Each frame contains three bytes in this order: Status, Command, Data.
80h: addresses all units.81htoFFh: addresses a unit with ID 001 to 127.
| Command | Function | Documented data |
|---|---|---|
03h | Set the main volume (Volume 1) | 00h to 38h |
04h | Request settings and general information | 40h |
08h | Set the RS-232 baud rate | 30h: 4,800; 31h: 9,600; 32h: 19,200 baud |
09h | Activate the secondary volume (Volume 2) | 01h |
7Fh | Set the RS-232 unit ID | 01h to 7Fh |
How the Volume 2 activation command behaves
The diagram shows that, when the command is received, the unit switches from Volume 1 to Volume 2 using the Fade time setting. It then maintains Volume 2 according to Trigger time before returning to Volume 1 using Fade time.
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