Giacomini

The Giacoklima bus system equipped with the KM203 network controller allows for remote control and supervision, via Serial communication, of the whole heating/cooling framework.

Communication

Connect HSYCO to the KM203 controller employing an RS485 gateway.

RS-232 parameters:

Baud rate	19200
Data bits	8
Stop bit	1
Parity	none
Flow control	none

The Giacoklima bus architecture

This image illustrates an example of the system architecture:

The RS485 port is on the top left corner of the KM203 interface as shown in the picture above.

HSYCO Configuration

Options

ID	Default	Values	Description
gui	true	true	enable support for the UI object, UISET actions and USER commands
		false	disable UI support
startupevents	false	true	generate IO events also during the driver’s start-up phase
		false	start generating events only after HSYCO is aligned with the current status of the system
pollinterval	1	n > 0	the data acquisition interval, in seconds

The Giacoklima bus architecture

The gkbus.ini file is a specific configuration file located in the main directory (same directory as hsyco.ini or hsyco.jar).

Here you must add a line for each thermostat belonging to the framework and optionally specify a descriptive name of the corresponding area.

Use the format “<ioserver_id>.k<n>.<addr> = name”, where <ioserver_id> is the id of the referred I/O server, <n> is the number of the KPM20 module the thermostat is connected to and <addr> is the secondary address of the thermostat.

For instance:

gk.k0.0 = Kitchen
gk.k0.1 = Bedroom
gk.k1.0 = Entrance

Datapoints

ID	Value	R/W	Description
connection	online	R	connection established
	offline	R	HSYCO can’t connect to the panel
k<n>.<addr>.name	<name>	R	the name of the addressed thermostat is set to the reported string
k<n>.<addr>.temp	<val>	R	the room temperature measured by the addressed thermostat is equal to <val> in °C/10
k<n>.<addr>.setpoint.temp	<val>	R	the set-point temperature measured by the addressed thermostat is equal to <val> in °C/10
		W	set the set-point temperature of the addressed thermostat to <val> in °C/10
k<n>.<addr>.humidity	<val>	R	the relative humidity measured by the addressed thermostat is equal to <val>
season	summer	R	the current season is set to summer
		W	set the current season to summer
	winter	R	the current season is set to winter
		W	set the current season to winter
k<n>.<addr>.mode	off	R	the addressed thermostat is set to mode “OFF”
		W	set the addressed thermostat to mode “OFF”
	com	R	the addressed thermostat is set to mode “Comfort”
		W	set the addressed thermostat to mode “Comfort”
	stb	R	the addressed thermostat is set to mode “Stand-by”
		W	set the addressed thermostat to mode “Stand-by”
	ngt	R	the addressed thermostat is set to mode “Night"
		W	set the addressed thermostat to mode “Night”
mode	off	W	set all the thermostats to mode “OFF”
	com	W	set all the thermostats to mode “Comfort”
	stb	W	set all the thermostats to mode “Stand-by”
	ngt	W	set all the thermostats to mode “Night”
k<n>.pump	0	R	the pump of the addressed KPM20 module is not active
	1	R	the pump of the addressed KPM20 module is active
k<n>.in.temp	<val>	R	the inlet temperature of the addressed KPM20 module is equal to <val>
k<n>.out.temp	<val>	R	the return temperature of the addressed KPM20 module is equal to <val> in °C/10
k<n>.setpoint.temp	<val>	R	the working set-point temperature of the addressed KPM20 module is equal to <val> in °C/10
k<n>.valve	<val>	R	the opening percentage value of the mixing valve calculated by the addressed KPM20 module is equal to val
ext.temp	<val>	R	the measured external temperature is equal to <val> in °C/10
t1.winter	<val>	R	the T1 temperature parameter’s value for winter climatic compensation is equal to <val> in °C/10
		W	set the T1 temperature parameter’s value for winter climatic compensation to <val> in °C/10
t2.winter	<val>	R	the T2 temperature parameter’s value for winter climatic compensation is equal to <val> in °C/10
		W	set the T2 temperature parameter’s value for winter climatic compensation to <val> in °C/10
lim.winter	<val>	R	the T-Lim temperature parameter’s value for winter climatic compensation is equal to <val> in °C/10
		W	set the T-Lim temperature parameter’s value for winter climatic compensation to <val> in °C/10
setpoint.winter	<val>	R	the minimum set-point temperature for winter is equal to <val> in °C/10
		W	set the minimum set-point temperature for winter to <val> in °C/10
setpoint.summer	<val>	R	the minimum set-point temperature for summer is equal to <val> in °C/10
		W	set the minimum set-point temperature for summer to <val> in °C/10

User Interface

You can use a tempmini object to create a thermostat-equivalent interface.

Set the Server ID field to the I/O Server’s name and specify the address of the thermostat (K483 module) in the Address field using the format “k<n>.<addr>” where <n> is the number of the KPM20 module the thermostat is connected to and <addr> is its address (e.g. k0.1 represents the second thermostat connected to the first KPM20):

UISET Actions

ID	Attribute	Set to

USER Commands

Name	Param	Action

Release Notes

3.3.0

• initial version release

---

Giacomini, GKBus and Giacoklima are registered trademarks of Giacomini SpA.