Class: ModBus::TCPSlave

Inherits:

Client::Slave

• Object
• Client::Slave
• ModBus::TCPSlave

Defined in:

lib/rmodbus/tcp_slave.rb

Overview

TCP slave implementation

Examples:

TCP.connect('127.0.0.1', 10002) do |cl|
  cl.with_slave(uid) do |slave|
    slave.holding_registers[0..100]
  end
end

See Also:

• ModBus::TCP#open_tcp_connection
• Client#with_slave
• Slave

Constant Summary

Constants inherited from Client::Slave

Client::Slave::EXCEPTIONS

Instance Attribute Summary

• #transaction ⇒ Object readonly

  Returns the value of attribute transaction.

Attributes inherited from Client::Slave

#uid

Attributes included from Options

#raise_exception_on_mismatch, #read_retries, #read_retry_timeout

Attributes included from Debug

#logger, #raise_exception_on_mismatch, #read_retries, #read_retry_timeout

Instance Method Summary

• #initialize(uid, io) ⇒ TCPSlave constructor

  A new instance of TCPSlave.

Methods inherited from Client::Slave

#coils, #discrete_inputs, #holding_registers, #input_registers, #mask_write_register, #query, #read_coil, #read_coils, #read_discrete_input, #read_discrete_inputs, #read_holding_register, #read_holding_registers, #read_input_register, #read_input_registers, #read_write_multiple_registers, #write_multiple_coils, #write_multiple_registers, #write_single_coil, #write_single_register

Constructor Details

#initialize(uid, io) ⇒ TCPSlave

Returns a new instance of TCPSlave.

See Also:

• Slave::initialize

# File 'lib/rmodbus/tcp_slave.rb', line 19

def initialize(uid, io)
  @transaction = 0
  super
end

Instance Attribute Details

#transaction ⇒ Object (readonly)

Returns the value of attribute transaction.

# File 'lib/rmodbus/tcp_slave.rb', line 16

def transaction
  @transaction
end