Method, device, and system for transmitting program and parameter to plc

An adapter, comprising:

• a first communication module configured to establish a wired connection with a programmable logic controller (PLC);
• a second communication module configured to establish a wireless connection with a mobile terminal;
• a storage module configured to store in advance a protocol list, a port list, and a port setting list for establishment of the wired connection with the PLC;
• an input-output module configured to (i) receive an input from an external device to the adapter and (ii) output data to an external device;
• and
• a microcontroller configured to control the first communication module, the second communication module, the storage module, and the input-output module,
• the controlling including:
• a task of controlling (i) the first communication module so that the first communication module establishes a connection with the PLC and (ii) the second communication module so that the second communication module establishes a connection with the mobile terminal,
• a task of controlling the first communication module so that the first communication module reads a state of the PLC from the PLC,
• a task of controlling the second communication module so that the second communication module transmits data on the state of the PLC to the mobile terminal,
• a task of controlling the second communication module so that the second communication module receives a program and/or parameter that the mobile terminal has downloaded from a cloud server and that corresponds to the state of the PLC, and
• a task of controlling the first communication module so that the first communication module transmits the program and/or parameter to the PLC.

A system, comprising:

• a cloud server;
• a mobile terminal;
• an adapter;
• and
• a programmable logic controller (PLC),
• the system being configured to transmit a program and parameter to the PLC,
• the cloud server storing:
• information on a plurality of PLCs to one of which each of a plurality of registered users corresponds;
• and (i) a plurality of programs to one of which each of the plurality of PLCs corresponds, (ii) a plurality of parameters to one of which each of the plurality of PLCs corresponds, and/or (iii) a plurality of pieces of uploaded monitoring data to one of which each of the plurality of PLCs corresponds,
• the mobile terminal being configured to
• (i) connect to the cloud server over a wireless network and connect to the adapter over a near-field wireless network, and (ii) on a basis of a state of said PLC on which state data has been transmitted from the adapter, obtain, from the cloud server, a program and/or parameter corresponding to the state of said PLC,
• the adapter being configured to
• (i) connect to said PLC over a wired network, (ii) read the state of said PLC from said PLC and transmit the data on the state of said PLC to the mobile terminal, and (iii) receive the program and/or parameter from the mobile terminal and transmit the program and/or parameter to said PLC,
• said PLC being configured to
• (i) sample data and (ii) transmit the sampled data to the cloud server via the adapter and the mobile terminal.