SDP Master Device¶
Introduction¶
The SDP Master Tango device is designed to provide the overall control of the SDP. The commands it receives cause the other SDP services to be stopped or started, and its attributes report on the overall state of the system.
The present implementation of the SDP Master device does very little apart from performing the state transitions in response to commands.
Interface¶
Attributes¶
Device attributes:
Attribute |
Type |
Read/Write |
Values |
Description |
|---|---|---|---|---|
version |
String |
Read |
Semantic version |
Master device server version |
heathState |
Enum |
Read |
SDP health state |
healthState values¶
healthState |
Description |
|---|---|
OK (0) |
|
DEGRADED (1) |
|
FAILED (2) |
|
UNKNOWN (3) |
Commands¶
The commands change the device state as described below, but at present they have no other effect on SDP.
Command |
Argument type |
Return type |
Action |
|---|---|---|---|
On |
None |
None |
Set device state to ON |
Disable |
None |
None |
Set device state to DISABLE |
Standby |
None |
None |
Set device state to STANDBY |
Off |
None |
None |
Set device state to OFF |