COMMUNICATION SYSTEM, PROGRAMMABLE INDICATOR, INFORMATION PROCESSING DEVICE, OPERATION CONTROL METHOD, INFORMATION PROCESSING METHOD, AND PROGRAM

摘要

One aspect of the present invention provides a PLC system (1000, 1000A) that can cause a programmable indicator (4, 4A, 4B) to acquire a log in desired timing of a user without directly performing setting operation on the programmable indicator (4, 4A, 4B). The PLC system (1000, 1000A) includes a PC (5) and the programmable indicator (4, 4A, 4B) having a logging function. When receiving input operation to turn on the logging function, the PC (5) performs processing of transmitting a control command (C1) for performing the logging function to the programmable indicator (4, 4A, 4B). The programmable indicator (4, 4A, 4B) turns on the logging function when receiving the control command (C1) from the PC (5).