Table 17:TRM_6I Monitored dataName Type Values (Range) Unit DescriptionSTATUS BOOLEAN 0=Ok1=Error- Analogue input modulestatusTable 18:TRM_7I_5U Monitored dataName Type Values (Range) Unit DescriptionSTATUS BOOLEAN 0=Ok1=Error- Analogue input modulestatusTable 19:TRM_9I_3U Monitored dataName Type Values (Range) Unit DescriptionSTATUS BOOLEAN 0=Ok1=Error- Analogue input modulestatus3.6 Operation principleThe direction of a current depends on the connection of the CT. The main CTs aretypically star connected and can be connected with the star point towards the object oraway from the object. This information must be set in the IED.The convention of the directionality is defined as follows:• Positive value of current or power means that the quantity has the direction intothe object.• Negative value of current or power means that the quantity has the direction outfrom the object.For directional functions the directional conventions are defined as follows (see figure2)• Forward means the direction is into the object.• Reverse means the direction is out from the object.Section 3 1MRK502052-UEN BAnalog inputs72Technical manual
