HostHandler¶
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class
secsgem.gem.hosthandler.
GemHostHandler
(address, port, active, session_id, name, custom_connection_handler=None)[source]¶ Bases:
secsgem.gem.handler.GemHandler
Baseclass for creating host models. Inherit from this class and override required functions.
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subscribe_collection_event
(ceid, dvs, report_id=None)[source]¶ Subscribe to a collection event.
Parameters: - ceid (integer) – ID of the collection event
- dvs (list of integers) – DV IDs to add for collection event
- report_id (integer) – optional - ID for report, autonumbering if None
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send_remote_command
(rcmd, params)[source]¶ Send a remote command.
Parameters: - rcmd (string) – Name of command
- params (list of strings) – DV IDs to add for collection event
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delete_process_programs
(ppids)[source]¶ Delete a list of process program.
Parameters: ppids (list of strings) – Process programs to delete
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enable_alarm
(alid)[source]¶ Enable alarm.
Parameters: alid ( secsgem.secs.dataitems.ALID
) – alarm id to enable
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disable_alarm
(alid)[source]¶ Disable alarm.
Parameters: alid ( secsgem.secs.dataitems.ALID
) – alarm id to disable
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list_alarms
(alids=None)[source]¶ List alarms.
Parameters: alids (array of int/str) – alarms to list details for
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alarms
¶ Dictionary of available alarms.
Example:
>>> handler = SecsHandler("127.0.0.1", 5000, True, 0, "test") >>> handler.alarms[137] = {'ceidon': 1371, 'ceidoff': 1372}
Key
Id of the alarm (integer)
Data
Dictionary with the following fields
- ceidon
- Collection event id for alarm on (integer)
- ceidoff
- Collection event id for alarm off (integer)
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are_you_there
()¶ Check if remote is still replying.
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callbacks
¶ Property for callback handling.
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collection_events
¶ Dictionary of available collection events.
Example:
>>> handler = SecsHandler("127.0.0.1", 5000, False, 0, "test") >>> handler.collection_events[123] = {'name': 'collectionEventName', 'dvids': [1, 5] }
Key
Id of the collection event (integer)
Data
Dictionary with the following fields
- name
- Name of the collection event (string)
- dvids
- Data values for the collection event (list of integers)
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data_values
¶ Dictionary of available data values.
Example:
>>> handler = SecsHandler("127.0.0.1", 5000, False, 0, "test") >>> handler.data_values[5] = {'name': 'dataValueName', 'ceid': 123 }
Key
Id of the data value (integer)
Data
Dictionary with the following fields
- name
- Name of the data value (string)
- ceid
- Collection event the data value is used for (integer)
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disable
()¶ Disables the connection.
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disable_ceid_reports
()¶ Disable all Collection Event Reports.
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disable_ceids
()¶ Disable all Collection Events.
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enable
()¶ Enables the connection.
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events
¶ Property for event handling.
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get_ceid_name
(ceid)¶ Get the name of a collection event.
Parameters: ceid (integer) – ID of collection event Returns: Name of the event or empty string if not found Return type: string
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get_dvid_name
(dvid)¶ Get the name of a data value.
Parameters: dvid (integer) – ID of data value Returns: Name of the event or empty string if not found Return type: string
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get_next_system_counter
()¶ Returns the next System.
Returns: System for the next command Return type: integer
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list_ecs
(ecs=None)¶ Get list of available Equipment Constants.
Returns: available Equipment Constants Return type: list
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list_svs
(svs=None)¶ Get list of available Service Variables.
Returns: available Service Variables Return type: list
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on_commack_requested
()¶ Get the acknowledgement code for the connection request.
override to accept or deny connection request
Returns: 0 when connection is accepted, 1 when connection is denied Return type: integer
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on_connection_before_closed
(_)¶ Connection is about to be closed.
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on_connection_closed
(connection)¶ Connection was closed.
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on_connection_established
(_)¶ Connection was established.
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on_connection_packet_received
(_, packet)¶ Packet received by connection.
Parameters: packet ( secsgem.hsms.packets.HsmsPacket
) – received data packet
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register_stream_function
(stream, function, callback)¶ Register the function callback for stream and function.
Parameters: - stream (integer) – stream to register callback for
- function (integer) – function to register callback for
- callback (def callback(connection)) – method to call when stream and functions is received
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remote_commands
¶ Dictionary of available remote commands.
Example:
>>> handler = SecsHandler("127.0.0.1", 5000, True, 0, "test") >>> handler.remote_commands["PP_SELECT"] = {'params': [{'name': 'PROGRAM', 'format': 'A'}], 'ceids': [200, 343]}
Key
Name of the remote command (string)
Data
Dictionary with the following fields
- params
Parameters for the remote command (list of dictionaries)
Parameters
The dictionaries have the following fields
- name
- name of the parameter (string)
- format
- format character of the parameter (string)
- ceids
- Collection events ids the remote command might return (list of integers)
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request_ec
(ec)¶ Request contents of one Equipment Constant.
Parameters: ec (int) – id of Equipment Constant Returns: value of requested Equipment Constant Return type: various
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request_ecs
(ecs)¶ Request contents of supplied Equipment Constants.
Parameters: ecs (list) – Equipment Constants to request Returns: values of requested Equipment Constants Return type: list
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request_process_program
(ppid)¶ Request a process program.
Parameters: ppid (string) – Transferred process programs ID
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request_sv
(sv)¶ Request contents of one Service Variable.
Parameters: sv (int) – id of Service Variable Returns: value of requested Service Variable Return type: various
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request_svs
(svs)¶ Request contents of supplied Service Variables.
Parameters: svs (list) – Service Variables to request Returns: values of requested Service Variables Return type: list
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secs_decode
(packet)¶ Get object of decoded stream and function class, or None if no class is available.
Parameters: packet ( secsgem.hsms.packets.HsmsPacket
) – packet to get object forReturns: matching stream and function object Return type: secsSxFx object
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send_and_waitfor_response
(packet)¶ Send the packet and wait for the response.
Parameters: packet ( secsgem.secs.functionbase.SecsStreamFunction
) – packet to be sentReturns: Packet that was received Return type: secsgem.hsms.packets.HsmsPacket
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send_deselect_req
()¶ Send a Deselect Request to the remote host.
Returns: System of the sent request Return type: integer
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send_deselect_rsp
(system_id)¶ Send a Deselect Response to the remote host.
Parameters: system_id (integer) – System of the request to reply for
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send_equipment_terminal
(terminal_id, text)¶ Set text to equipment terminal.
Parameters: - terminal_id (int) – ID of terminal
- text (string) – text to send
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send_linktest_req
()¶ Send a Linktest Request to the remote host.
Returns: System of the sent request Return type: integer
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send_linktest_rsp
(system_id)¶ Send a Linktest Response to the remote host.
Parameters: system_id (integer) – System of the request to reply for
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send_process_program
(ppid, ppbody)¶ Send a process program.
Parameters: - ppid (string) – Transferred process programs ID
- ppbody (string) – Content of process program
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send_reject_rsp
(system_id, s_type, reason)¶ Send a Reject Response to the remote host.
Parameters: - system_id (integer) – System of the request to reply for
- s_type (integer) – s_type of rejected message
- reason (integer) – reason for rejection
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send_response
(function, system)¶ Send response function for system.
Parameters: - function (
secsgem.secs.functionbase.SecsStreamFunction
) – function to be sent - system (integer) – system to reply to
- function (
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send_select_req
()¶ Send a Select Request to the remote host.
Returns: System of the sent request Return type: integer
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send_select_rsp
(system_id)¶ Send a Select Response to the remote host.
Parameters: system_id (integer) – System of the request to reply for
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send_separate_req
()¶ Send a Separate Request to the remote host.
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send_stream_function
(packet)¶ Send the packet and wait for the response.
Parameters: packet ( secsgem.secs.functionbase.SecsStreamFunction
) – packet to be sent
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set_ec
(ec, value)¶ Set contents of one Equipment Constant.
Parameters: - ec (int) – id of Equipment Constant
- value (various) – new content of Equipment Constant
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set_ecs
(ecs)¶ Set contents of supplied Equipment Constants.
Parameters: ecs (list) – list containing list of id / value pairs
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stream_function
(stream, function)¶ Get class for stream and function.
Parameters: - stream (int) – stream to get function for
- function (int) – function to get
Returns: matching stream and function class
Return type: secsSxFx class
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unregister_stream_function
(stream, function)¶ Unregister the function callback for stream and function.
Parameters: - stream (integer) – stream to unregister callback for
- function (integer) – function to register callback for
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waitfor_communicating
(timeout=None)¶ Wait until connection gets into communicating state. Returns immediately if state is communicating.
Parameters: timeout (float) – seconds to wait before aborting Returns: True if state is communicating, False if timed out Return type: bool
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