Heartbeat (0X25); Reboot (0X26) - Arcam SA20 Custom Installation Notes

Heartbeat (0x25)

Heartbeat command to check unit is still connected and communicating -
also resets the EuP standby timer.
Example
Command/response to sending a heartbeat command:
Command: 0x21 0x01 0x25 0x01 0xF0 0x0D
Response: 0x21 0x01 0x25 0x00 0x01 0x00 0x0D

Reboot (0x26)

Forces a reboot of the unit.
Example
Command/response to sending a reboot command:
Command: 0x21 0x01 0x26 0x06 0x52 0x45 0x42 0x4F
0x4F 0x54 0x0D
Response: 0x21 0x01 0x26 0x01 0x00 0x0D
10
COMMAND:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x25
Dl 0x01
Data 0xF0 – Heartbeat
Et 0x0D
RESPONSE:
Byte: Description:
St 0x21
Zn Zone Number
Cc 0x25
Ac Answer code
Dl 0x01
Data 0x00 – Response
Et 0x0D
COMMAND:
Byte: Description:
St 0x21
Zn Zone number
Cc 0x26
Dl 0x06
Data1 0x52
Data2 0x45
Data3 0x42
Data4 0x4F
Data5 0x4F
Data6 0x54
Et 0x0D
RESPONSE:
Byte: Description:
St 0x21
Zn Zone Number
Cc 0x26
Ac Answer code
Dl 0x01
Data 0x00 – Response
Et 0x0D