1. Overview
AirLive SA-102 User Manual
8
Example:
Scale = 0x04 (V) Precision = 1
Size = 2 (2 Bytes of V) Meter Value 1 = 0x09(V) Meter Value 2 = 0x01(V)
AC load Voltage = (Meter Value 1*256) +(Meter Value 2)= 230.5 (V)
1.6.3.5. AC load current ( I )
When receiving Meter Get Command, it will report Meter Report Command to the node
asked.
Meter Get Command:
[Command Class Meter, Meter Get, Scale =0x05(I)]
Meter Report Command:
[Command Class Meter
，
Meter Report
，
Rate Type = 0x01
，
Meter Type
= 0x01
，
Precision = 2
，
Scale = 0x05
，
Size = 2
，
Meter Value(I)]
Example:
Scale = 0x05 (I) Precision = 2
Size = 2 (2 Bytes of I) Meter Value 1 = 0x01(I) Meter Value 2 = 0x21(I)
AC load current = (Meter Value 1*256) +(Meter Value 2)= 2.89 (A)
1.6.3.6. Load power factor (PF)
When receiving Meter Get Command, it will report Meter Report Command to the node
asked.
Meter Get Command
: [Command Class Meter, Meter Get, Scale =0x06(PF)]
Meter Report Command:
[Command Class Meter
，
Meter Report
，
Rate Type = 0x01
，
Meter Type = 0x01
，
Precision
= 2
，
Scale = 0x06
，
Size = 1 Bytes
，
Meter Value(PF)]
Example:
Scale = 0x06 (PF)
Precision = 2
Size = 1 (1 Byte of PF)
Meter Value 1 = 0x63(PF) (It means that the load power factor is 0.99)
1.6.4. Multi Channel Command Class Version 3
SA-102 also support Muti Channel command class (version 3), which include
INARY_SWITCH_GET, BINARY_SWITCH_SET, BASIC_GET, BASIC_SET,
METER_SUPPORTED_GET, METER_RESET, METER_GET
You may control or get report from 3 endpoints of SA-102.
