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27 Kaco

Overview

This protocol is meant to be used by inverters that convert the DC power generated by the photovoltaic (PV) modules into AC power and feed this into the power grid.

This protocol handles serial communication parameters (baudrate, databits, stopbits, etc.) automatically.

Configuration

Kaco parameters for Device tab
Parameter

Type

Description

Required

Default value

(when not specified)

Range

Min

Max

name string  User-friendly device name Yes

 

 

 

description string Description of a device No

 

 

 

device_alias string Alphanumeric string to identify a device Yes      
enable boolean Enabling/disabling of a device No 1 0 1
protocol string Protocol to be used. Yes  

Kaco

scan_rate_ms integer All reads and writes will be executed within the
timeframe in miliseconds.
No 10000

 

poll_delay_ms integer Minimum time delay in miliseconds to wait
before sending any data on port.
No 200

 

timeout_ms integer Timeout of waiting for incoming request in miliseconds No 2500 0 60000
subid integer Inverter serial number display No 0    
ext_device boolean 0 ­- Inverter is connected directly
1 -­ Inverter is connected via remote terminal
No 0 0 1
id integer Inverter serial number Yes      
device string Communication port Yes   PORT1 PORT2
Kaco parameters for Signals tab
Parameter Type Description Required

Default value

(when not specified)

Range


signal_name

string

User-­friendly signal name

Yes  

 

 

device_alias

string

Device alias from a Devices tab

Yes  

 

 

signal_alias

string

Unique alphanumeric name of the signal to be used

Yes  

 

 

enable

boolean

Enabling/disabling of an individual signal

No 1

0

1

log

integer

Enable logging in event log

No 0

 

 

number_type string Type of a number (FLOAT, DOUBLE, DIGITAL, etc.) Yes      
job_todo

string

Tag job as single or multiple comma separated OBIS codes

Yes  

 

 

tag_job_todo string Tag sub job Yes      
pulse_short_time_ms integer Time interval for short output pulse to stay
active
No      
pulse_long_time_ms integer Time interval for long output pulse to stay active No