An industrial controller that integrates execution of a control program on the industrial controller with execution of additional functions on an external processing device is disclosed. Integrating the external processing device provides an improved system for third party development of control functions which may be unique to specific applications. The system manages communication between the industrial controller and the external processing device, manages access to data stored in the industrial controller, and makes the details of the integration transparent to the programmer.

An objective of the present invention is to facilitate settings to be performed for a relay device. A control device, configured to be able to communicate with other devices via a relay device, is provided with: a storage unit that stores a user program including at least one of instructions for performing communication settings that are settings related to communication with the other devices; and a communication setting unit that performs the communication settings. The communication setting unit performs transmission and reception of commands together with the relay device on the basis of fulfillment of conditions of executing the instruction and performs the communication settings indicated by the instruction.

An industrial controller that integrates execution of a control program on the industrial controller with execution of additional functions on an external processing device is disclosed. Integrating the external processing device provides an improved system for third party development of control functions which may be unique to specific applications. The system manages communication between the industrial controller and the external processing device, manages access to data stored in the industrial controller, and makes the details of the integration transparent to the programmer.

A programmable display device includes a drive recorder information processing unit that obtains a specific set of data from a servo amplifier that holds drive recorder information including both a first set of data, being a plurality of items of data of a servomotor in which an alarm has occurred, and also being sequential data of before and after the occurrence of the alarm, and a second set of data, being data of all the items upon the occurrence of the alarm of the servomotor in which the alarm has occurred, the specific set of data being a third set of data indicating the alarm corresponding to the drive recorder information, and displays a first screen that displays a list of alarms; and a graphical waveform information processing unit that displays a second screen that displays a graphical representation of the first set of data.