Method and control system for controlling and/or monitoring devices

A first distributed database system for at least one of storing and providing transactions, having:

• a multiplicity of nodes connected to one another via a communication network;
• a first assigning module communicatively connected to the first determining module and configured for assigning respective execution requirements to respective control instructions;
• a first memory module communicatively connected to the first determining module and configured for storing the respective control instructions with applicable execution requirements in control transactions, wherein
• the control transactions are stored by the distributed database system;
• the control transactions are conveyed to the devices by means of the distributed database system;
• wherein the distributed database system conveys a first control instruction of a first control transaction to a first node and/or a first device and writes a confirmation transaction of performance of the first control instruction, wherein performance of the first control instruction is a respective presupposed control instruction of a second node and/or a second device, and
• wherein, in response to the confirmation transaction of performance of the first control instruction, the distributed database system conveys a second control transaction with a second control instruction to the second node and/or the second device;
• a third memory module for storing transactions in the distributed database system;
• a fourth memory module for storing a task data record of a specific task, wherein
• the task data record is assigned to the first distributed database system;
• a second assigning module for assigning a validity data record for the distributed database system;
• wherein
• all transactions comprise data for performing the specific task,
• the validity data record indicates a period and/or a time up to which at least one function can be carried out, wherein
• the period is a life of a device or field device,
• the period is a performance time for at least one of an instruction sequence, a maintenance action and a control action of a device or field device, and/or
• a device or field device is replaced at the time;
• and
• wherein the third memory module, the fourth memory module, and/or the second assigning module comprises hardware.