manufacturer: janitza model: b21-b23-b24 device: b21-b23-b24 category: Altro protocol: modbus version: v1 firmware: null verification: IMPORTED isDemo: false source: title: janitza b21-b23-b24 — modbus-database (registers.json) url: https://www.aggsoft.com/serial-data-logger/tutorials/modbus-data-logging/janitza-b21-b23-b24.htm documentRef: null revision: null generatedAt: 2026-09-21T13:15:50.897Z registers: - address: "19000" addressNumeric: 8999 signal: voltage_l1_n name: Voltage-L1-N description: Voltage-L1-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: V access: READ endianness: null group: null notes: null - address: "19002" addressNumeric: 9001 signal: voltage_l2_n name: Voltage-L2-N description: Voltage-L2-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: V access: READ endianness: null group: null notes: null - address: "19004" addressNumeric: 9003 signal: voltage_l3_n name: Voltage-L3-N description: Voltage-L3-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: V access: READ endianness: null group: null notes: null - address: "19006" addressNumeric: 9005 signal: voltage_l1_l2 name: Voltage-L1-L2 description: Voltage-L1-L2 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: V access: READ endianness: null group: null notes: null - address: "19008" addressNumeric: 9007 signal: voltage_l2_l3 name: Voltage-L2-L3 description: Voltage-L2-L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: V access: READ endianness: null group: null notes: null - address: "19010" addressNumeric: 9009 signal: voltage_l3_l1 name: Voltage-L3-L1 description: Voltage-L3-L1 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: V access: READ endianness: null group: null notes: null - address: "19012" addressNumeric: 9011 signal: apparent_current_l1_n name: Apparent-current,-L1-N description: Apparent-current,-L1-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: A access: READ endianness: null group: null notes: null - address: "19014" addressNumeric: 9013 signal: apparent_current_l2_n name: Apparent-current,-L2-N description: Apparent-current,-L2-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: A access: READ endianness: null group: null notes: null - address: "19016" addressNumeric: 9015 signal: apparent_current_l3_n name: Apparent-current,-L3-N description: Apparent-current,-L3-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: A access: READ endianness: null group: null notes: null - address: "19020" addressNumeric: 9019 signal: real_power_l1_n name: Real-power-L1-N description: Real-power-L1-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: W access: READ endianness: null group: null notes: null - address: "19022" addressNumeric: 9021 signal: real_power_l2_n name: Real-power-L2-N description: Real-power-L2-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: W access: READ endianness: null group: null notes: null - address: "19024" addressNumeric: 9023 signal: real_power_l3_n name: Real-power-L3-N description: Real-power-L3-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: W access: READ endianness: null group: null notes: null - address: "19026" addressNumeric: 9025 signal: real_power_l1_l2_l3 name: Real-power-L1+L2+L3 description: Real-power-L1+L2+L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: W access: READ endianness: null group: null notes: null - address: "19028" addressNumeric: 9027 signal: apparent_power_l1_n name: Apparent-power-L1-N description: Apparent-power-L1-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: VA access: READ endianness: null group: null notes: null - address: "19030" addressNumeric: 9029 signal: apparent_power_l2_n name: Apparent-power-L2-N description: Apparent-power-L2-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: VA access: READ endianness: null group: null notes: null - address: "19032" addressNumeric: 9031 signal: apparent_power_l3_n name: Apparent-power-L3-N description: Apparent-power-L3-N functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: VA access: READ endianness: null group: null notes: null - address: "19034" addressNumeric: 9033 signal: apparent_power_l1_l2_l3 name: Apparent-power-L1+L2+L3 description: Apparent-power-L1+L2+L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: VA access: READ endianness: null group: null notes: null - address: "19036" addressNumeric: 9035 signal: reactive_power_l1 name: Reactive-power-L1 description: Reactive-power-L1 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: var access: READ endianness: null group: null notes: null - address: "19038" addressNumeric: 9037 signal: reactive_power_l2 name: Reactive-power-L2 description: Reactive-power-L2 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: var access: READ endianness: null group: null notes: null - address: "19040" addressNumeric: 9039 signal: reactive_power_l3 name: Reactive-power-L3 description: Reactive-power-L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: var access: READ endianness: null group: null notes: null - address: "19042" addressNumeric: 9041 signal: reactive_power_l1_l2_l3 name: Reactive-power-L1+L2+L3 description: Reactive-power-L1+L2+L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: var access: READ endianness: null group: null notes: null - address: "19044" addressNumeric: 9043 signal: power_factor_l1 name: Power-factor-L1 description: Power-factor-L1 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: null access: READ endianness: null group: null notes: null - address: "19046" addressNumeric: 9045 signal: power_factor_l2 name: Power-factor-L2 description: Power-factor-L2 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: null access: READ endianness: null group: null notes: null - address: "19048" addressNumeric: 9047 signal: power_factor_l3 name: Power-factor-L3 description: Power-factor-L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: null access: READ endianness: null group: null notes: null - address: "19050" addressNumeric: 9049 signal: measured_frequency name: Measured-frequency description: Measured-frequency functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Hz access: READ endianness: null group: null notes: null - address: "19054" addressNumeric: 9053 signal: real_energy_l1 name: Real-energy-L1 description: Real-energy-L1 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19056" addressNumeric: 9055 signal: real_energy_l2 name: Real-energy-L2 description: Real-energy-L2 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19058" addressNumeric: 9057 signal: real_energy_l3 name: Real-energy-L3 description: Real-energy-L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19060" addressNumeric: 9059 signal: real_energy_l1_l2_l3 name: Real-energy-L1+L2+L3 description: Real-energy-L1+L2+L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19062" addressNumeric: 9061 signal: real_energy_l1_consumed name: Real-energy-L1,-consumed description: Real-energy-L1,-consumed functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19064" addressNumeric: 9063 signal: real_energy_l2_consumed name: Real-energy-L2,-consumed description: Real-energy-L2,-consumed functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19066" addressNumeric: 9065 signal: real_energy_l3_consumed name: Real-energy-L3,-consumed description: Real-energy-L3,-consumed functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19068" addressNumeric: 9067 signal: real_energy_l1_l2_l3_consumed name: Real-energy-L1+L2+L3,-consumed description: Real-energy-L1+L2+L3,-consumed functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19070" addressNumeric: 9069 signal: real_energy_l1_delivered name: Real-energy-L1,-delivered description: Real-energy-L1,-delivered functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19072" addressNumeric: 9071 signal: real_energy_l2_delivered name: Real-energy-L2,-delivered description: Real-energy-L2,-delivered functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19074" addressNumeric: 9073 signal: real_energy_l3_delivered name: Real-energy-L3,-delivered description: Real-energy-L3,-delivered functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19076" addressNumeric: 9075 signal: real_energy_l1_l2_l3_delivered name: Real-energy-L1+L2+L3,-delivered description: Real-energy-L1+L2+L3,-delivered functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: Wh access: READ endianness: null group: null notes: null - address: "19078" addressNumeric: 9077 signal: apparent_energy_l1 name: Apparent-energy-L1 description: Apparent-energy-L1 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: VAh access: READ endianness: null group: null notes: null - address: "19080" addressNumeric: 9079 signal: apparent_energy_l2 name: Apparent-energy-L2 description: Apparent-energy-L2 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: VAh access: READ endianness: null group: null notes: null - address: "19082" addressNumeric: 9081 signal: apparent_energy_l3 name: Apparent-energy-L3 description: Apparent-energy-L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: VAh access: READ endianness: null group: null notes: null - address: "19084" addressNumeric: 9083 signal: apparent_energy_l1_l2_l3 name: Apparent-energy-L1+L2+L3 description: Apparent-energy-L1+L2+L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: VAh access: READ endianness: null group: null notes: null - address: "19086" addressNumeric: 9085 signal: reactive_energy_l1 name: Reactive-energy-L1 description: Reactive-energy-L1 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: varh access: READ endianness: null group: null notes: null - address: "19088" addressNumeric: 9087 signal: reactive_energy_l2 name: Reactive-energy-L2 description: Reactive-energy-L2 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: varh access: READ endianness: null group: null notes: null - address: "19090" addressNumeric: 9089 signal: reactive_energy_l3 name: Reactive-energy-L3 description: Reactive-energy-L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: varh access: READ endianness: null group: null notes: null - address: "19092" addressNumeric: 9091 signal: reactive_energy_l1_l2_l3 name: Reactive-energy-L1+L2+L3 description: Reactive-energy-L1+L2+L3 functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: varh access: READ endianness: null group: null notes: null - address: "19094" addressNumeric: 9093 signal: reactive_energy_l1_inductive name: Reactive-energy-L1,-inductive description: Reactive-energy-L1,-inductive functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: varh access: READ endianness: null group: null notes: null - address: "19096" addressNumeric: 9095 signal: reactive_energy_l2_inductive name: Reactive-energy-L2,-inductive description: Reactive-energy-L2,-inductive functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: varh access: READ endianness: null group: null notes: null - address: "19098" addressNumeric: 9097 signal: reactive_energy_l3_inductive name: Reactive-energy-L3,-inductive description: Reactive-energy-L3,-inductive functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: varh access: READ endianness: null group: null notes: null - address: "19100" addressNumeric: 9099 signal: reactive_energy_l1_l2_l3_inductive name: Reactive-energy-L1+L2+L3,-inductive description: Reactive-energy-L1+L2+L3,-inductive functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: varh access: READ endianness: null group: null notes: null - address: "19102" addressNumeric: 9101 signal: reactive_energy_l1_capacitive name: Reactive-energy-L1,-capacitive description: Reactive-energy-L1,-capacitive functionCode: 3 datatype: float32 length: 2 scale: 1 offset: 0 unit: varh access: READ endianness: null group: null notes: null