Central Node

class tmcprototype.centralnodelow.src.centralnodelow.central_node_low.CentralNode(*args, **kwargs)

Central Node is a coordinator of the complete M&C system.

Device Properties

CentralAlarmHandler:  Device name of CentralAlarmHandler TMAlarmHandler:Device name of TMAlarmHandler TMLowSubarrayNodes:  List of TM Low Subarray Node devices MCCSMasterLeafNodeFQDN:  FQDN of Mccs Master Leaf Node.

Device Attributes

TelescopeHealthState:  Health state of Telescope Subarray1HealthState:  Health state of Subarray1 ActivityMessage:  String providing information about the current activity in Central Node.

class tmcprototype.centralnodelow.src.centralnodelow.assign_resources_command.AssignResources(*args, **kwargs)

A class for CentralNode’s AssignResources() command.

Assigns resources to given subarray. It accepts the subarray id, station ids, station beam id and channels in JSON string format.

do(argin)

Method to invoke AssignResources command on Subarray.

Parameters:argin –

The string in JSON format. The JSON contains following values:

subarray_id:

DevShort. Mandatory. Sub-Array to allocate resources to

station_ids:

DevArray. Mandatory list of stations contributing beams to the data set

channels:

DevArray. Mandatory list of frequency channels used

station_beam_ids:

DevArray. Mandatory logical ID of beam

Example:

{“mccs”:{“subarray_id”:1,”station_ids”:[1,2],”channels”:[[0,8,1,1],[8,8,2,1],[24,16,2,1]],”station_beam_ids”:[1]}}

Note: Enter input without spaces as:{“subarray_id”:1,”station_ids”:[1,2],”channels”:[1,2,3,4,5,6,7,8],”station_beam_ids”:[1]}

Returns:

None

Raises:

KeyError if input argument json string contains invalid key

ValueError if input argument json string contains invalid value

class tmcprototype.centralnodelow.src.centralnodelow.release_resources_command.ReleaseResources(*args, **kwargs)

A class for CentralNodeLow’s ReleaseResources() command.

do(argin)

Release all the resources assigned to the given Subarray. It accepts the subarray id, release_all flag in JSON string format. When the release_all flag is True, ReleaseAllResources command is invoked on the respective SubarrayNode.

Parameters:

argin –

The string in JSON format. The JSON contains following values:

subarray_id:

DevShort. Mandatory.

release_all:

Boolean(True or False). Mandatory. True when all the resources to be released from Subarray.

Example:

{“mccs”:{“subarray_id”:1,”release_all”:true}}

Note: From Jive, enter input as:

{“mccs”:{“subarray_id”:1,”release_all”:true}} without any space.

Raises:

ValueError if input argument json string contains invalid value

KeyError if input argument json string contains invalid key

DevFailed if the command execution or command invocation on SubarrayNode is not successful

class tmcprototype.centralnodelow.src.centralnodelow.standby_telescope_command.StandByTelescope(*args, **kwargs)

A class for Low CentralNode’s StandByTelescope() command.

Sets the CentralNodeLow into OFF state. Invokes the respective command on lower level nodes and devices.

do()

Method to invoke StartBy command.

param argin: None.

Returns:A tuple containing a return code and a string message indicating status.

The message is for information purpose only.

Return type:(ResultCode, str) Raises:AssertionError if command is not completed.

class tmcprototype.centralnodelow.src.centralnodelow.startup_telescope_command.StartUpTelescope(*args, **kwargs)

A class for Low CentralNode’s StartupCommand() command.

Setting the startup state to TRUE enables the telescope to accept subarray commands as per the subarray model. Set the CentralNode into ON state.

do()

Method to invoke StartUp command.

Parameters:argin – None. Returns:A tuple containing a return code and a string message indicating status.

The message is for information purpose only.

Return type:(ResultCode, str) Raises:AssertionError if command is not completed.