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Feature/add simulator api skeleton (#2274)
Signed-off-by: Esa Laakso <[email protected]> Co-authored-by: jan iversen <[email protected]>
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‎doc/source/library/simulator/calls_request.rst‎

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.. code-block:: json
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{
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"submit": "Simulate"
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"response_clear_after": 0,
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"response_cr": "",
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"response_cr_pct": 0,
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"response_split": "",
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"split_delay": 1
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"response_delay": 0,
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"response_error": 0,
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"response_junk_datalen": 0,
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"response_type": 0,
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}

‎doc/source/library/simulator/calls_response.rst‎

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.. code-block:: json
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{
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"simulation_action": "ACTIVE",
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"range_start": null,
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"range_stop": null,
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"function_codes": [
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{
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"value": 3,
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"text": "read_holding_registers",
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"selected": false
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},
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{
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"value": 2,
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"text": "read_discrete_input",
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"selected": false
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},
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{
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"value": 4,
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"text": "read_input_registers",
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"selected": false
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},
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{
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"value": 1,
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"text": "read_coils",
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"selected": false
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},
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{
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"value": 15,
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"text": "write_coils",
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"selected": false
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},
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{
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"value": 16,
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"text": "write_registers",
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"selected": false
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},
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{
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"value": 6,
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"text": "write_register",
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"selected": false
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},
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{
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"value": 5,
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"text": "write_coil",
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"selected": false
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},
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{
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"value": 23,
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"text": "read_write_multiple_registers",
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"selected": false
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},
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{
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"value": 8,
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"text": "diagnostic_status",
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"selected": false
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},
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{
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"value": 7,
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"text": "read_exception_status",
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"selected": false
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},
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{
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"value": 11,
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"text": "get_event_counter",
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"selected": false
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},
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{
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"value": 12,
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"text": "get_event_log",
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"selected": false
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},
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{
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"value": 17,
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"text": "report_slave_id",
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"selected": false
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},
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{
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"value": 20,
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"text": "read_file_record",
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"selected": false
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},
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{
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"value": 21,
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"text": "write_file_record",
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"selected": false
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},
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{
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"value": 22,
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"text": "mask_write_register",
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"selected": false
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},
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{
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"value": 24,
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"text": "read_fifo_queue",
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"selected": false
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},
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{
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"value": 43,
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"text": "read_device_information",
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"selected": false
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}
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],
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"function_show_hex_checked": false,
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"function_show_decoded_checked": false,
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"function_response_normal_checked": true,
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"function_response_error_checked": false,
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"function_response_empty_checked": false,
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"function_response_junk_checked": false,
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"function_response_split_checked": true,
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"function_response_split_delay": 1,
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"function_response_cr_checked": false,
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"function_response_cr_pct": 0,
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"function_response_delay": 0,
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"function_response_junk": 0,
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"function_error": [
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{
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"value": 1,
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"text": "IllegalFunction",
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"selected": false
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},
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{
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"value": 2,
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"text": "IllegalAddress",
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"selected": false
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},
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{
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"value": 3,
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"text": "IllegalValue",
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"selected": false
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},
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{
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"value": 4,
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"text": "SlaveFailure",
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"selected": false
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},
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{
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"value": 5,
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"text": "Acknowledge",
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"selected": false
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},
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{
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"value": 6,
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"text": "SlaveBusy",
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"selected": false
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},
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{
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"value": 7,
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"text": "MemoryParityError",
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"selected": false
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},
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{
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"value": 10,
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"text": "GatewayPathUnavailable",
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"selected": false
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},
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{
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"value": 11,
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"text": "GatewayNoResponse",
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"selected": false
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}
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],
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"function_response_clear_after": 1,
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"call_rows": [],
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"foot": "not active",
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"result": "ok"
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}

‎doc/source/library/simulator/registers_request.rst‎

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.. code-block:: json
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{
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"range_start": 16,
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"range_end": 16,
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"submit": "Register"
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}

‎doc/source/library/simulator/registers_response.rst‎

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.. code-block:: json
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{
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"result": "ok",
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"footer": "Operation completed successfully",
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"register_types": {
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"bits": 1,
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"uint16": 2,
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"uint32": 3,
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"float32": 4,
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"string": 5,
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"next": 6,
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"invalid": 0
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},
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"register_actions": {
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"null": 0,
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"increment": 1,
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"random": 2,
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"reset": 3,
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"timestamp": 4,
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"uptime": 5
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},
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"register_rows": [
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{
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"index": "16",
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"type": "uint16",
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"access": "True",
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"action": "none",
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"value": "3124",
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"count_read": "0",
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"count_write": "0"
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}
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]
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}

‎doc/source/library/simulator/restapi.rst‎

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Pymodbus simulator ReST API
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===========================
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4-
TO BE DOCUMENTED.
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This is still a Work In Progress. There may be large changes to the API in the
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future.
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The API is a simple copy of
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having most of the same features as in the Web UI.
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The API provides the following endpoints:
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- /restapi/registers
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- /restapi/calls
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- /restapi/server
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- /restapi/log
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Registers Endpoint
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------------------
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/restapi/registers
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^^^^^^^^^^^^^^^^^^
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The registers endpoint is used to read and write registers.
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**Request Parameters**
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- `submit` (string, required):
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The action to perform. Must be one of `Register`, `Set`.
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- `range_start` (integer, optional):
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The starting register to read from. Defaults to 0.
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- `range_end` (integer, optional):
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The ending register to read from. Defaults to `range_start`.
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**Response Parameters**
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Returns a json object with the following keys:
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- `result` (string):
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The result of the action. Either `ok` or `error`.
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- `error` (string, conditional):
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The error message if the result is `error`.
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- `register_rows` (list):
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A list of objects containing the data of the registers.
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- `footer` (string):
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A cleartext status of the action. HTML leftover.
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- `register_types` (list):
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A static list of register types. HTML leftover.
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- `register_actions` (list):
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A static list of register actions. HTML leftover.
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**Example Request and Response**
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Request Example:
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.. include:: registers_request.rst
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Response Example:
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.. include:: registers_response.rst
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Calls Endpoint
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--------------
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The calls endpoint is used to handle ModBus response manipulation.
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/restapi/calls
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^^^^^^^^^^^^^^
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The calls endpoint is used to simulate different conditions for ModBus
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responses.
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**Request Parameters**
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- `submit` (string, required):
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The action to perform. Must be one of `Simulate`, `Reset`.
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The following must be present if `submit` is `Simulate`:
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- `response_clear_after` (integer, required):
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The number of packet to clear simulation after.
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- `response_cr` (string, required):
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Must be present but can be any value. Turns on change rate simulation (WIP).
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- `response_cr_pct` (integer, required):
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The percentage of change rate, how many percent of packets should be
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changed.
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- `response_split` (string, required):
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Must be present but can be any value. Turns on split response simulation (WIP).
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- `split_delay` (integer, required):
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The delay in seconds to wait before sending the second part of the split response.
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- `response_delay` (integer, required):
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The delay in seconds to wait before sending the response.
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- `response_error` (integer, required):
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The error code to send in the response. The valid values can be one from
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the response `function_error` list.
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When `submit` is `Reset`, no other parameters are required. It resets all
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simulation options to their defaults (off).
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**Example Request and Response**
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Request:
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.. include:: calls_request.rst
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Response:
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Unfortunately, the endpoint response contains extra clutter due to
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not being finalized.
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.. include:: calls_response.rst
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Server Endpoint
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---------------
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The server endpoint has not yet been implemented.
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Log Endpoint
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------------
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The log endpoint has not yet been implemented.

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