Integrated industrial system and control method thereof

An integrated industrial system for a plant having a plurality of zones comprising:

• a first zone which comprises:
• a safety instrumented system for ensuring safety in operation of the plant, the safety instrumented system being configured to certainly shut down the plant in a safe state in an emergency;
• and
• a first detector configured to detect a first cyber-attack from outside of the integrated industrial system to the first zone;
• a second zone which comprises:
• a manufacturing system which is connected to the safety instrumented system through a network, the manufacturing system being established for manufacturing products in the plant efficiently;
• and
• a second detector configured to detect a second cyber-attack from outside of the integrated industrial system to the second zone;
• and
• a defender configured to restrict a communication between the first zone and the second zone or restrict a communication in the first zone or the second zone, based on a detection result of at least one of the first detector and the second detector,
• wherein the defender performs a first countermeasure of blocking power supply of a network device installed in the first zone to block the network physically in a case where the first detector detects the first cyber-attack from outside of the integrated industrial system to the first zone,
• wherein the defender performs a second countermeasure in a case where the second detector detects the second cyber-attack from outside of the integrated industrial system to the second zone, and
• wherein the first countermeasure protects the first zone from the first cyber-attack more securely than the second countermeasure.

A control method of an integrated industrial system for a plant having a plurality of zones, which comprises a safety instrumented system which is installed in a first zone and configured to certainly shut down the plant in a safe state in an emergency, and a manufacturing system which is connected to the safety instrumented system through a network, the manufacturing system being installed in a second zone which is different from the first zone, the manufacturing system being established for manufacturing products in the plant efficiently, the control method comprising:

• detecting, by a first detector, a first cyber-attack from outside of the integrated industrial system to the first zone, the first detector being installed in the first zone;
• detecting, by a second detector, a second cyber-attack from outside of the integrated industrial system to the second zone, the second detector being installed in the second zone;
• performing, by a defender, a countermeasure of restricting a communication between the first zone and the second zone or of restricting a communication in the first zone or the second zone, based on a detection result of at least one of the first detector and the second detector,
• wherein performing the countermeasure further comprises performing a first countermeasure of blocking power supply of a network device installed in the first zone to block the network physically in a case where the first detector detects the first cyber-attack from outside of the integrated industrial system to the first zone, and performing a second countermeasure in a case where the second detector detects the second cyber-attack from outside of the integrated industrial system to the second zone, and
• wherein the first countermeasure protects the first zone from the first cyber-attack more securely than the second countermeasure.