App-13
IM 04L51B01-17EN
Appendix
App
Data group name Data name Description WT Function
mark
SigmaA U voltage U Σ
I current I Σ
P active power P Σ
S apparent power S Σ
Q reactive power Q Σ
LAMBda power factor λΣ
PHI phase difference φΣ
WH Sum of positive and negative watt
hours
WP Σ
WHP Sum of positive P (consumed watt
hours)
WP+ Σ
WHM Sum of negative P (watt hours
returned to the power supply)
WP- Σ
AH Sum of positive and negative
ampere hours
q Σ
AHP Sum of positive I (ampere hours) q+ Σ
AHM Sum of negative I (ampere hours) q- Σ
Other MATH Computed value, such as efficiency Math
1 "TIME" is valid only when the data group is "ELEMENT1."
2 "PFLL" is valid only when the data group is "ElemHrm1."
Appendix 6 Data Group Name and Data Name for WT Communication