Module pyModbusTCP.server¶
This module provide the ModbusServer and DataBank class.
class pyModbusTCP.server.ModbusServer¶
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class
pyModbusTCP.server.ModbusServer(host='localhost', port=502, no_block=False, ipv6=False)¶ Modbus TCP server
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is_run¶ Return True if server running.
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start()¶ Start the server.
Do nothing if server is already running. This function will block if no_block is not set to True.
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stop()¶ Stop the server.
Do nothing if server is already not running.
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class pyModbusTCP.server.DataBank¶
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class
pyModbusTCP.server.DataBank¶ Data class for thread safe access to bits and words space
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classmethod
get_bits(address, number=1)¶ Read data on server bits space
Parameters: - address (int) – start address
- number (int) – number of bits (optional)
Returns: list of bool or None if error
Return type: list or None
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classmethod
get_words(address, number=1)¶ Read data on server words space
Parameters: - address (int) – start address
- number (int) – number of words (optional)
Returns: list of int or None if error
Return type: list or None
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classmethod
set_bits(address, bit_list)¶ Write data to server bits space
Parameters: - address (int) – start address
- bit_list (list) – a list of bool to write
Returns: True if success or None if error
Return type: bool or None
Raises: ValueError – if bit_list members cannot be convert to bool
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classmethod
set_words(address, word_list)¶ Write data to server words space
Parameters: - address (int) – start address
- word_list (list) – a list of word to write
Returns: True if success or None if error
Return type: bool or None
Raises: ValueError – if word_list members cannot be convert to int
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classmethod