Kostal Piko

The Kostal Piko interface communicates via Ethernet with a Kostal inverter. This allows the energy data to be displayed in real time. Additionally, it is possible to detect a fault on the device.

Functionality

The data is queried cyclically every second by Antcas Control via HTTP. If a value has changed, it is sent to the PLC.

If multiple inverters are used, they can be queried with the corresponding device address. Each individual device uses its own interface in Antcas Control for this purpose.

Variables

In case an error on the inverter needs to be evaluated, it is recommended to also monitor the variable offline, as all other values are only transmitted when there is a correct connection.

Note: The variable time is not displayed in the monitor.

General

Name	Description
time [datetime]	Last query.
error [bool]	A fault is present at the inverter.
offline [bool]	If the device is not reachable, this value is true.

Energy

Note: Energy is measured in kWh, which means the value must be multiplied by 1000 on the PLC if necessary.

Name	Unit	Description
ENERGY [real]	kWh	Current production.
ENERGY_HOUSE [real]	kWh	Current production for self-consumption.
ENERGY_CONSUMPTION [real]	kWh	Current consumption.
PAC [int]	W	Active power output on the AC side.
PDC [int]	W	Active power output on the DC side.

Battery

Name	Unit	Description
BAT_LOAD [real]	%	Battery state of charge.
BAT_CYCLE [real]	x	Number of charge cycles.
BAT_TEMP [real]	°C	Battery temperature.
BAT_U [int]	V	Battery voltage.
BAT_I [int]	A	Battery current.
BAT_LOADING [bool]		Battery is charging.

Status

Name	Description
STATUS [int]	Operating status: 0 = Off 1 = Init 2 = IsoMeas 3 = GridCheck 4 = StartUp 5 = - 6 = FeedIn 7 = Throttled 8 = ExtSwitchOff 9 = Update 10 = Standby 11 = GridSync 12 = GridPreCheck 13 = GridSwitchOff 14 = Overheating 15 = Shutdown 16 = ImproperDcVoltage 17 = ESB 18 = Unknown