BS EN IEC 61158-5-27:2023

This standard BS EN IEC 61158-5-27:2023 Industrial communication networks. Fieldbus specifications is classified in these ICS categories:

• 33.040.40 Data communication networks
• 25.040.01 Industrial automation systems in general
• 25.040 Industrial automation systems

IEC 61158-5-27:2023 provides common elements for basic time-critical and non-time-critical messaging communications between application programs in an automation environment and material specific to Type 27 fieldbus. The term "time-critical" is used to represent the presence of a time-window, within which one or more specified actions are required to be completed with some defined level of certainty. Failure to complete specified actions within the time window risks failure of the applications requesting the actions, with attendant risk to equipment, plant and possibly human life.