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Introduction
The EX-20 extension enables the expansion of connectivity options that operators require in their sites.
It also converts RS232 to RS485, making it possible for Elara to communicate with different devices that have different communication protocols.
Catalog information
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Technical Specification
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Power Supply
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9 – 30V
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Power Consumption
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0.12W average (approx.) @12V approx. 10mA
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Weight
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80g (approx.)
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Storage temperature
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-40 – 85 Celsius
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Working temperature
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-20 – 70 Celsius
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Serial communication
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RS485/RS232/ CAN (Model specific)
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Max. relative humidity
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90%
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0 – 5V analog input
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4
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0 – 15V analog input
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8
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Digital inputs (Negative)
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5
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Open collection output
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1
Preparation
Before getting started, make sure you have the following items:
Tools:
Screwdriver flat & Philips
Electrical wires
Wire stripping tool
RS-485 to USB adaptor (for connecting to the Elara via PowerCenter - make sure to install the drivers)
Voltmeter (for troubleshooting voltage issues)
Hardware:
EX20 Galooli device
Laptop/ PC
PowerCenter application installed - with credentials
Zon Max application installed – with credentials
Elara tray/shelter - including the Terminal blocks
Wiring and installation
Before getting started with the installation, make sure you have the wiring diagram relevant to your project.
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Mounting the sensor
Locate the designated space for the EX20 on the upper DIN rail of the Elara’s ShelterBox/ Tray.
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Verify that the EX20 unit is connected to all of its relevant interfaces:
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Interfaces
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Wires
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Terminal Blocks IOs
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· Analog 1 à 12
· 1 Output
· Digital 1,2,3,4 & 7
· RS-232 TX RX
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Terminal Blocks Power
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· -IN (GND)
· +IN (+12V DC)
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Elara’s 2nd RS-485 terminal
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· RS485A
· RS485B
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Configuration The ID of the EX20 in Power Center
Connect the EX20 to a 12V DC power supply.
Connect the EX20 to the computer via the RS 485 to USB converter.
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Open the PowerCetner app.
Open the “Active Device” dropdown menu and Select “Power Device.”
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Open the “
Connected via” dropdown and Select the relevant “Com port.”
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Navigate to the “
EX20” tab on the top toolbar.
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Click on “
Set Device ID”, a pop up window will appear, set the ID of the Ex20 device according to your Wiring Diagram and apply.
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Click the “
Write All Parameters” button.
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Disconnect the EX20 from the current setup.
Configuration of the Elara in Power Center
Connect the EX20 to a 12V DC power supply – from Termnial Blocks.
Connect the EX20 to the second RS 485 Elara port.
Using the RS485 to USB converter, connect the PC to the DLS & BZR ports on the Terminal Blocks.
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Open the PowerCetner app.
Open the “
Active Device” dropdown and Select “Elara.”
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Open the “
Connected via” dropdown and Select the relevant “Com port.”
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Navigate to the “
Elara” tab.
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Navigate to the “
Configuration” tab.
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Click the “
Read Configuration” button.
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10. Click the “Add Port-2 Device” botton, and the” ELARA-Modbus Device Configuration” window will pop up.
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11. In the “Elara – Modbus Device Configuration” fill in the relevant fields:
a. In the first “Device” dropdown list, select “Galooli”.
b. In the second “Device” dropdown list, select “EX20”.
c. In the “Physical & Virtual Device ID”, input the ID number that you have configured previously, according to your wiring diagram.
d. In “Device Baudrate” select 19200.
e. Click “Apply”.
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12. Click the “Write Configuration” button.
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13. Click the “Reset” button.
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14. After the unit has reset, navigate to the “Status” tab, and verify that you can view that the EX20 is connected.
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The Ex20 extension enables the expansion different gateways like the Elara, Techbase, and Axiomtek.
With the Ex20 connected to the gateway tray/metal box, a greater quantity of analog and digital sensors may be connected to the gateway.
Features
4 analog input (0-5V)
8 analog input (0-15V)
5 Digital inputs (Negative)
1 Open collection output
1 RS232 Gateway (Modbus host)
Hardware Specifications
Power Supply | 9 - 30 V | |
Power Consumption | Full power mode | 0.12 W average (Aprox.) @12v aprox. 10mA |
General purpose inputs | 12 Analog inputs (0-5v / 0-15v available – Model specific) 8 digital inputs (Model specific) | |
Outputs | Open collector output (Model specific) | |
Serial Communication | RS485 (Main) / Modbus host RS232 (Model specific) CAN (Model specific) RS485 (Secondary – Model specific) | |
Storage Temperature | -40 - 85 Celsius | |
Working Temperature | -20 - 70 Celsius | |
Max. Relative humidity | 90% | |
Weight | 80g (Aprox.) | |
Output specifications
Output Type | Open Collector |
Max. Continuous working current | 200 mA |
Over Current protection | 300 mA (Aprox.) |
Maximum working voltage | 40 V |
General-purpose analog inputs specifications
Reading Voltage range | 0-5V / 0-15V |
Reading Resolution | 2 mV / 5mV |
Reading Accuracy (max error) | 2% |
Max input voltage | 40V |
Negative digital inputs specifications
Low level threshold (Active) | 1 V |
High Level threshold | 1.4V |
Mechanical Dimensions
Length | 86mm |
Width | 70mm |
Height | 58mm |
Status LEDs
Active state | Blinking pattern description | Pattern |
Host Connected | Green, Fast blink (for a period of 10 Sec after each message from host) | 
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Gateway mode: No host, but data received at the RS232 port | Red, Fast blink (for a period of 10 Sec after each message from host) | 
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Idle State (No communication) | Red, short blink and long pause. |  |
Idle State (No Communication), Error condition | Red, (X>1) Short blinks and long pause. Contact Galooli for detailed description on detection of fault state |
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Pinout
0-5V | 0-5V | 0-5V | 0-5V | 0-15V | 0-15V | 0-15V | 0-15V | 0-15V | 0-15V | 0-15V | 0-15V |
GND | PWRIN | RS485-A | RS485-B | DIG1 | DIG2 | DIG3 | DIG4 | RS232-TX | RS232-RX | DIG7 | OUT |
Pin# | Name |
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AN1 | Analog 1 |
AN2 | Analog 2 |
AN3 | Analog 3 |
AN4 | Analog 4 |
AN5 | Analog 5 |
AN6 | Analog 6 |
AN7 | Analog 7 |
AN8 | Analog 8 |
AN9 | Analog 9 |
AN10 | Analog 10 |
AN11 | Analog 11 |
AN12 | Analog 12 |
IN- | GND - Terminal Blocks Power |
IN+ | +12V DC - Terminal Blocks Power |
RS485 A | RS485 A Communication pin |
RS485 B | RS485 B Communication pin |
DIG1 | Digital 1 |
DIG2 | Digital 2 |
DIG3 | Digital 3 |
DIG4 | Digital 4 |
RS232 TX | RS232 transmitted data |
RS232 RX | RS232 received data |
DIG7 | Digital 7 |
OUT | Output |
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