Galileo is Galcon’s top-of-the-line modular irrigation and climate controller. The Galileo irrigation system operates remote terminal units for open field, farms and greenhouses. It is one of the most advanced computerized agricultural control system available today.

Galileo is the perfect choice for climate control and irrigation in green houses as well as for irrigation control of large open fields, farms, orchards, turf, public gardens, and golf courses.

Galcon’s Galileo W range of irrigation systems consists of:

  • Galileo W, a modular controller in advanced “small casing” (4 slots).
  • Galileo WEX, a modular controller in advanced “large casing” (4 I/O slots and 4 protection slots).
  • Galileo WEXX, a modular controller in advanced “large casing”(8 I/O slots, 8 protection slots, L-485 slot).

All Galileo W systems include input/output slots in which the I/O cards can be fitted.

The Galileo W series consists of various models, including (AC models, DC models), Remote Terminal Units (RTUs), and software applications.

AC Models

Power Supply 24VAC
Voltage output 24VAC
Discrete Inputs On/Off
Analog Inputs 4-20mA
I/O cards 8 Inputs/16 outputs; 24 outputs; 16 analogs.
Wire RTU adapter; one-way radio RTU adapter (Gal1Way); two-way radio RTU adapter (Gal2Way)

 DC Models

Power Supply 12DC
Consumption Approx. 150mA (when display is switched off)
Volatge output 12VDC latching
Discrete Inputs On/Off
I/O cards 8 Inputs/8 outputs;
Wire RTU adapter; one-way radio RTU adapter (Gal1Way); two-way radio RTU adapter (Gal2Way)

 Remote Terminal Units (RTU)

RTUs are small units with several inputs and outputs. They are installed in the field within a few kilometers from the controller. Each unit is connected locally to solenoids, meters, sensors, and other elements. Each RTU is in constant communication with the controller; receiving operational commands and transferring data back to the controller.

A system can consist of a CRTU adapter inserted into the controller, a 3-wire single cable (that can be up to 6 km/3.7 miles long- for cable type address our technician team) along which CRTU units are installed. Another option is a combination of units with a total of up to 128 outputs installed along the cable. Two such cables can be installed on one controller.

CRTU-2 2 Outputs
12VDC latching
4 Inputs (On/Off).
CRTU-4 4 Outputs
12VDC latching
8 Inputs (On/Off)
4 analogs – 4-20mA or 0-10V


The radio RTU AP (G1W) is a one-way RRTU system that transmits a radio signal from the controller over a distance of up to 5 km/3.1 miles (depending on the field topography and environment ). The radio signal is received by the radio RTU that can then open/close outputs.

Serial Transmitter (SRT) 1W-RRTU adapter (located inside the controller); data cable; radio transceiver; an antenna.
Field Units 2 or 4 12 VDC latching outputs
Lithium battery; 3.6 VDC (lasts up to 2-3 years under field conditions)
100% waterproof enclosure
Epoxy molded housing
Each unit is loaded with its own “private” code number using a portable terminal

 Gal2Way controller is connected via radio to units consisting of outputs, inputs and analogs. The controller communicates with the units in the field via radio and transmits the command to open or closed outputs. It receives the data from the inputs and analogs. The controller receives water quantity and fert.

The Gal2Way features the latest radio technologies that enable the user to create wide network of RRTU’S with the capability to command field elements such as valves and pumps and to collect data from meters and sensors.

The Gal2Way is a plug and play system with license free radios that feature frequency hopping and automatic routing ensuring reliable and robust communication.

Gal2Way is using sophisticated high efficiency radio unit that provides long battery operation, up to 2  years (dependent on use) without the need for solar panel.

Consentrator Interface card (located inside the controller);
radio transceiver; an antenna.
Field Units Small transceiver
4 x 1.5 D alkaline battery
I/O: 4 or 8 outputs (2 or 3 wires), 4 discrate inputs, 3 analog inputs
Specification Radio System:·         Wide area star network.·         1.25 Mile/2 Km coverage radius, extended by relays to a range of  3.1 Mile/ 4 Km.·         433MHz, 868MHz and 915MHz version for world-wide coverage.·         GFSK modulation, 25kHz deviation, 50kbps.·         Self-healing technology ,frequency hopping spread spectrum provides robust communication.·         Two-way, time-synchronized, time-slotted traffic.·         TDMA system provides  high capacity and low latency.·         Smart antenna diversity for enhanced link performance.·         Regulation of transmitting power.


All Galileo models are equipped with a 24-keys keyboard and a display console consisting of a wide 25-row LCD display. All types of programming can be performed by the console. There are 2 options for installing a console in the controller casing: at the front door or on top.

The RAM is backed up by a lithium battery, installed on the main card (cpv) that lasts for at least 5 years. This ensures that data is not lost even in case of power failures.

There are two options to choose from for communication ports: a RS-232 port output for communication with a remote PC, or a RS-442 port for connection to an expansion unit (or EC/pH monitor).

Galileo systems can also include a powerful central PC software. Connecting the controllers to the PC has many advantages. It enables remote control which allows users to conduct tasks from the comfort office instead of outside in the field or greenhouse. Several Galileo units can be connected to one computer, allowing central control of a very large area from a single location. Graphic presentation on the PC enables online display of the field including all active elements.  System status and other information are displayed in user-friendly way.

The PC can also collect a variety of data types, including valve accumulations, water meters, water meter flow rates and irrigation information. Many types of reports and graphs can be displayed. These reports can be set for parameters, ranging from a single minute up to a full year. The system also supports highly specialized reports, e.g., reports of fertilizer elements such as nitrogen, phosphorus or potassium per valve. Data can be exported to an Excel data sheet by pressing one bottom for further analysis.

There are several ways that communication with the central computer can take place:

  • Direct connection via a cable.
  • Long distance cable via a L485 cable modem (up to 4 km/2.4 miles); enabling controller networks.
  • Cellular images by using Galcon communication server ( GPRS).
  • Radio communication with a range of up to 5 km/3.1 miles (additional range can be achieved via repeaters).

Galileo includes several types of software applications running on Galileo hardware. The type of application depends on the nature of a project. Galcon’s Galileo applications consist of open field irrigation, greenhouses, irrigation, climate, and nursery irrigation software.

Open Field Irrigation Software

Galileo’s open field irrigation software is a unique application especially designed to provide a wide variety of irrigation solutions. It is suitable for small irrigation systems such as a small plots as well as for the large  irrigation areas. Use of cable and radio RTU is fully supported. The software’s graphic capabilities allow users to see a realistic picture of the irrigated field.

The application enables up to 50 pipelines to interconnect, thus creating a network. Pipelines are set up similar to how they appear in the field. This enables various remote operations, including:

  • Setting up the hierarchy of main valves  head definition and field valves.
  • Ability of gradually open/close irrigation to prevent high pressure buildup.
  • Limiting the flow rate to a pipeline in the case of bottle necks. Upon programming the limiting flow rate, the system prevents the actual flow rate to exceed the limit automatically.
  • Prevention of definition errors .
  • The software supports up to 200 irrigation valves accumulating data relating to water/time and up to 7 different fertilizers.

The irrigation application also enables up to 100 water meters dividing the amount and flow rate of water measured by the water meter between the active valves. This unique ability allows for using one water meter for many valves, while at the same time operating each valve separately.

The software application allows for two fertilizing elements. Up to 40 local fertilizer pumps use a simple operation program that is part of the irrigation program. Up to 8 fertilizer centers enable operation of up to 6 fertilizer pumps, control of EC, pH, etc.

The software also manages up to 5 pump houses thanks to a special program. This enables easy operation of a combination of up to 5 water pumps and up to 20 water pumps in total.

The application also manages up to 20 virtual water meters by showing the total flow rate and the accumulation of water meters. Each virtual water meter can also display the balance of the flow rate at a certain point, which allows for the use of the element called Burst Control (Net Protection).

Up to 20 pause elements are part of the application program. If an element contains a condition input and/or a sensor (e.g., a pressure transducer), it can pause the pipeline it is connected to.

The application also supports up to 4 mixing junctions which controls the dilution of water. The result of e.g., mixing of drainage or salty water with fresh water complies with required EC.

The software application enables up to 200 irrigation programs. Each irrigation program encompasses:

  • Up to 50 valves for operation.
  • Quantity or duration.
  • Local fertilizing pump.
  • Selection of fertilizing program of fertilizer center.
  • Over/under flow alarms.
  • Sequential operation.
  • Start and stop time.
  • Cyclic irrigation.
  • Daily (days of the week).
  • Conditioned irrigation.


Greenhouse Irrigation Software

Galcon’s greenhouse irrigation software program combines an irrigation system with up to 4 climate control systems in the same controller. The greenhouse irrigation system is composed of one irrigation head in which a fertilizer center performs sophisticated fertilizer injection of up to 8 different fertilizers. It conducts essential control of conductivity and acidity of the irrigation water.

The greenhouse irrigation application is designed for Galcon greenhouse irrigation capabilities, misting programs and greenhouse climate control.

Irrigation Capabilities

The irrigation systems can operate:

  • One irrigation head (including main valve, water pump, main fertilizer)
  • Up to 100 valves.
  • Up to 8 fertilizer pumps.
  • Up to 5 fertilizing selectors.
  • Up to 10 filters.
  • Up to 20 drainage sampling outputs.
  • Up to 40 misting valves.
  • Additional elements.

The irrigating systems can also read: one water meter, 8 fertilizer meters, up to 100 sensors, special mixer inputs, special mixing, and recycling inputs. Up to 100 irrigation programs can be set with a variety of options. A single preset program can work up to 4 valves directly and 16 valves indirectly. Preset fertilizer programs encompass a wide range of options, including:

  • Up to 50 different fertilizer programs in which the proportion of fertilizer/water for each fertilizer pump is set along with the EC/pH requirement.
  • Time range for operation.
  • Up to 5 hourly start times per day.
  • Cyclic irrigation.
  • Several options for manual overriding.

Misting Programs

Galileo’s misting programs consist of up to 40 foggers. Each fogger contains:

  • Time of operation.
  • Time cycle which can be changed by e.g., temperature, humidity, or other conditions.
  • Use of logical conditions for operation.
  • Sequential operation.
  • Drainage sampling by Galcon’s Dagan device that can connect up to 20 sampling points to the controller. It automatically measures the quantity, EC, and pH.
  • Filter flushing by up to 10 filters divided between up to 2 stations.

Greenhouse Climate Control The greenhouse climate control includes a large diversified and flexible software package that fits the requirements of almost any farmer without the need for modifications. The internal sensors in the greenhouse include temperature, humidity end CO2. External sensors include wind velocity and direction, radiation (light intensity), rain meter, external temperature and humidity.

A central program carries out requirements such as normal temperature, humidity and radiation according to day segmentation. A day (24 hours) can be divided into up to 8 segments each having required temperature, humidity and radiation. The control is carried out (according to the element setup) to maintain the required condition throughout the day.

Utilizing these sensors, the system operates the greenhouse components. Up to 4 greenhouses climate controlled systems can be setup. Each greenhouse climate control system operates:

  • Up to 10 windows or curtains, including roof windows. Each window or curtain can open/close in 10 stages according to temperature, humidity, wind, rain, logic conditions and processes (e.g., CO2 or spraying).
  • Up to 4 fans that are installed on the sidewall of a greenhouse. The fans exhaust air out of the greenhouse while letting fresh air enter the greenhouse from the opposite side. The fans can be programmed to work according to the conditions set for the windows along with cyclic programs that can change the cycle automatically according to temperature. The fans can also be programmed to depend on other processes.
  • Up to 4 thermal screens per greenhouse can be unfolded or rolled up according to the level of radiation (light intensity) and/or the temperature. The thermal screens can be programmed for up to 4 opening stages.
  • Up to 4 cooling systems consisting of either wet pads or fogging systems operating according to temperature, humidity or other conditions. The cooling process can include operating other elements such as fans in case of cooling pads.
  • Up to 4 heating systems heat the greenhouse by hot water heating or air heating. The heating system is normally programmed to maintain a certain air temperature by starting and stopping the heating output. Galileo’s circulating heating program enables PID (Proportional–Integral–Derivative) control of water temperature, according to the air temperature and the heating conductivity data of the greenhouse. This program is designed for high accuracy and for severe conditions. Heating can be programmed according to humidity and other conditions.
  • Enrichment program operates up to 4 CO2 valves, including other elements such as windows and air circulating.
  • Up to 4 spraying devices that spray pesticide at certain locations inside the greenhouse. The process includes closing windows and operating the air circulating to ensure that the pesticide reaches all required areas of the greenhouse.
  • Up to 6 air-circulating fans installed inside the greenhouse, enabling inside air circulation. The programmed elements include cyclic operation according to temperature, humidity, as well as spraying, CO2, and other processes such as lighting.
  • Galileo alarm activation in case of system failure such as over/under flow rate, uncontrolled water, absent water meter pulse, and extreme climate conditions. Alarms can be issued via an external device such a siren or a flashing light, or sent as an SMS text message to a cellular phone, or via email.