2 3 4 5 6 7 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 0 1 2 Secure AC Meter Selected Readings Include this model for secure metering Amps Total AC Current Current scale factor Voltage Average phase or line voltage Voltage scale factor Hz Frequency Frequency scale factor Watts Total Real Power Real Power scale factor VA AC Apparent Power Apparent Power scale factor VAR Reactive Power Reactive Power scale factor PF Power Factor Power Factor scale factor Total Watt-hours Exported Total Real Energy Exported Real Energy scale factor Total Watt-hours Imported Total Real Energy Imported Total VA-hours Exported Total Apparent Energy Exported Apparent Energy scale factor Total VA-hours Imported Total Apparent Energy Imported Reactive Energy scale factor Total VAR-hours Imported Q1 Total Reactive Energy Imported Quadrant 1 Total VAr-hours Imported Q2 Total Reactive Power Imported Quadrant 2 Total VAr-hours Exported Q3 Total Reactive Power Exported Quadrant 3 Total VAr-hours Exported Q4 Total Reactive Power Exported Quadrant 4 Events Meter Event Flags Power Failure Loss of power or phase Under Voltage Voltage below threshold (Phase Loss) Low PF Power Factor below threshold Over Current Current Input over threshold Over Voltage Voltage Input over threshold Missing Sensor Sensor not connected OEM01 Reserved for OEM use OEM02 Reserved for OEM use OEM01 Reserved for OEM use OEM04 Reserved for OEM use OEM05 Reserved for OEM use OEM06 Reserved for OEM use OEM07 Reserved for OEM use OEM08 Reserved for OEM use OEM09 Reserved for OEM use OEM10 Reserved for OEM use OEM11 Reserved for OEM use OEM12 Reserved for OEM use OEM13 Reserved for OEM use OEM14 Reserved for OEM use OEM15 Reserved for OEM use OEM16 Reserved for OEM use Timestamp Timestamp value is the number of seconds since January 1, 2000 Milliseconds Millisecond counter 0-999 Algorithm Algorithm used to compute the digital signature For future proof NONE No digital signature For test purposes only AES-GMAC-64 64 bit AES signature algorithm is used ECC-256 256 bit ECC signature algorithm is used N Number of registers comprising the digital signature. The value of N must be at least 4 (64 bits) Sequence Sequence number of request Shall be advanced for each request