measure to control possible communication errors that is designed and implemented in compliance with the requirements of IEC 61508

NOTE 1 to entry: In practice, several safety measures are combined to achieve the required safety integrity level.

NOTE 2 to entry: Communication errors and related safety measures are detailed in IEC 617843:2017, 5.3 and 5.4.

[SOURCE: IEC 61784-3:2017, 3.1]