Programmable controller, programmable controller system, and recording medium

A programmable controller system, comprising:

• a plurality of programmable controllers, each of the plurality of programmable controllers including
• a storage, and
• processing circuitry to
• manage a parameter including (i) a destination setting specifying a destination to which character string data is output based on a message output command included in a program in the programmable controller and (ii) an operation mode setting indicating whether an operation mode of the programmable controller is an active mode or a debug mode, and
• output the character string data based on the message output command to the destination indicated by the destination setting, wherein
• the destination indicated by the destination setting includes another programmable controller connected to the programmable controller with an interface included in the programmable controller, and
• the processing circuitry outputs the character string data to a preset destination or does not output the character string data, based on the operation mode setting.

A non-transitory computer-readable recording medium storing a program for causing a programmable controller to execute processing, the processing comprising:

• managing a parameter including an operation mode setting indicating whether an operation mode of the programmable controller is an active mode or a debug mode;
• outputting character string data based on a message output command;
• and
• outputting the character string data to a preset destination or not outputting the character string data, based on the operation mode setting.