MCCS Subarray Leaf Node

class tmcprototype.mccssubarrayleafnode.src.mccssubarrayleafnode.mccs_subarray_leaf_node.MccsSubarrayLeafNode(*args, **kwargs)

MCCS Subarray Leaf node monitors the MCCS Subarray and issues control actions during an observation.

Device Properties

MccsSubarrayFQDN:  FQDN of MCCS Subarray.

Device Attributes

MccsSubarrayHealthState:  Forwarded attribute to provide MCCS Subarray Health State. MccsSubarrayObsState:  Attribute to provide MCCS Subarray Observation State. ActivityMessage:  String providing information about the current activity in MCCS Subarray Leaf Node.

class tmcprototype.mccssubarrayleafnode.src.mccssubarrayleafnode.abort_command.Abort(*args, **kwargs)

A class for MccsSubarrayLeafNode’s Abort() command.

Command to abort the current operation being done on the MCCS subarray.

do()

Method to invoke Abort command on MCCS Subarray.

Parameters:argin – None Returns:None Return type:Void Raises:DevFailed if the command execution is not successful

class tmcprototype.mccssubarrayleafnode.src.mccssubarrayleafnode.configure_command.Configure(*args, **kwargs)

A class for MccsSubarrayLeafNode’s Configure() command.

This command configures a scan. It accepts configuration information in JSON string format and invokes Configure command on MccsSubarray.

do(argin)

Method to invoke Configure command on MCCS Subarray.

Parameters:argin – DevString. The string in JSON format. The JSON contains following values:

Example: {“mccs”:{“stations”:[{“station_id”:1},{“station_id”:2}],”subarray_beams”:[{“subarray_id”:1,”subarray_beam_id”:1, “target”:{“system”:”HORIZON”,”name”:”DriftScan”,”Az”:180.0,”El”:45.0},”update_rate”:0.0,”channels”:[[0,8,1,1], [8,8,2,1],[24,16,2,1]]}]}}

Note: Enter the json string without spaces as a input.

Returns:

A tuple containing a return code and a string message indicating status. The message is for information purpose only.

Return type:

(ReturnCode, str)

Raises:

DevFailed if the command execution is not successful

ValueError if input argument json string contains invalid value

KeyError if input argument json string contains invalid key

class tmcprototype.mccssubarrayleafnode.src.mccssubarrayleafnode.end_command.End(*args, **kwargs)

A class for MccsSubarrayLeafNode’s End() command.

This command invokes End command on MCCS Subarray in order to end current scheduling block.

do()

Method to invoke end command on MCCS Subarray.

Returns:None Return type:Void Raises:DevFailed if the command execution is not successful.

class tmcprototype.mccssubarrayleafnode.src.mccssubarrayleafnode.end_scan_command.EndScan(*args, **kwargs)

A class for MccsSubarrayLeafNode’s EndScan() command.

This command invokes EndScan command on MccsSubarray. It is allowed only when MccsSubarray is in ObsState SCANNING.

do()

Method to invoke EndScan command on MCCS Subarray.

Raises:

DevFailed if the command execution is not successful.

AssertionError if MccsSubarray is not in SCANNING obsState.

class tmcprototype.mccssubarrayleafnode.src.mccssubarrayleafnode.obsreset_command.ObsReset(*args, **kwargs)

A class for MccsSubarrayLeafNode’s ObsReset() command.

Command to reset the MCCS subarray and bring it to its RESETTING state.

do()

Method to invoke ObsReset command on MCCS Subarray.

Parameters:argin – None Returns:None Raises:DevFailed if error occurs while invoking the command on MccsSubarray.

class tmcprototype.mccssubarrayleafnode.src.mccssubarrayleafnode.scan_command.Scan(*args, **kwargs)

A class for MccsSubarrayLeafNode’s Scan() command.

This command invokes Scan command on MccsSubarray. It is allowed only when MccsSubarray is in ObsState READY.

do(argin)

Method to invoke Scan command on MCCS Subarray.

Parameters:argin – JSON string consists of scan id (int) and scan_time.

Example: {“id”:1, “scan_time”:0.0}

Note: Enter the json string without spaces as a input.

Returns:None Return type:Void Raises:DevFailed if the command execution is not successful