EasyIO FD-20i Series Service manual

EasyIO FD-20i User Reference v1.2
EasyIO FD-20i Series
User Reference

EasyIO FD-20i User Reference v1.2
Document Change Log
1st June 2019
Document created.
18th June 2019
Update power supply details
18th March 2020
Updated the temp table selection.

EasyIO FD-20i User Reference v1.2
Disclaimer
Confidentiality Notice
The information contained in this document is confidential information of EasyIO Holdings Pte Ltd. Such
information and the software described herein, is furnished under a license agreement and may be used
only in accordance with that agreement.
The information contained in this document is provided solely for use by EasyIO Holdings Pte Ltd
employees, licensees, and system owners; and, except as permitted under the below copyright notice, is
not to be released to, or reproduced for, anyone else.
While every effort has been made to assure the accuracy of this document, EasyIO Holdings Pte Ltd is not
responsible for damages of any kind, including without limitation consequential damages, arising from
the application of the information contained herein. Information and specifications published here are
current as of the date of this publication and are subject to change without notice. The latest product
specifications can be found by contacting our corporate headquarters or support channel.
Trademark Notice
EasyIO logo are registered trademarks of EasyIO Holdings Pte Ltd.
CPT Tool is by Online Tools Inc.
BACnet and ASHRAE are registered trademarks of American Society of Heating, Refrigerating and Air-
Conditioning Engineers. All other product names and services, mentioned in this publication, that are
known to be trademarks, registered trademarks, or service marks are the property of their respective
owners.
Copyright and Patent Notice
This document may not, in whole or in part, be copied, photocopied, reproduced, translated, or reduced
to any electronic medium or machine-readable form without prior written consent from EasyIO Holdings
Pte Ltd
Copyright © 2019 EasyIO Holdings Pte Ltd. All rights reserved
Disclaimer
The material in this manual is for information purposes only. The contents and the product it
describes are subject to change without notice. EasyIO Holdings Pte Ltd makes no
representations or warranties with respect to this manual. In no event shall EasyIO Holdings Pte Ltd be
liable for any damages, direct or incidental, arising out of or related to the use of this manual.
EasyIO Holdings Pte Ltd
101, Cecil Street #09-07
Tong Eng Building
Singapore 069533
Worldwide and Asia Pacific Support : [e-mail]
Americas Support : [e-mail]
Europe Support : [e-mail]

EasyIO FD-20i User Reference v1.2
Federal Communication Commission Interference Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with the instructions, may cause harmful interference
to radio communications. However, there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to radio or television reception, which can
be determined by turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the equipment and receiver.
•Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
•Consult the dealer or an experienced radio/TV technician for help.
Caution: Any changes or modifications not expressly approved by the party responsible for compliance
could void the user's authority to operate this equipment.
FCC Caution
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
FCC Radiation Exposure Statement
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.
This equipment should be installed and operated with minimum distance 20cm between the radiator &
your body.
RF Exposure: A distance of 20 cm shall be maintained between the antenna and users, and the
transmitter module may not be co-located with any other transmitter or antenna.

EasyIO FD-20i User Reference v1.2
Contents
Introduction ....................................................................................................................................................6
Hardware Configurations................................................................................................................................7
Power supply Connection...........................................................................................................................7
RS485 Connection.......................................................................................................................................8
Universal Input Connection ......................................................................................................................10
Digital Input Connection...........................................................................................................................10
Buttons and Indications ................................................................................................................................12
Technical Support .........................................................................................................................................12

EasyIO FD-20i User Reference v1.2
Introduction
The EasyIO FD Series is aimed at affordable IO module range.
EasyIO FD-20i Series controller comes with built in bootloader program. Built in bootloader program will
enable user to upgrade firmware without sending back to factory.
EasyIO FD20 do not have an Ethernet port.
It only has RS 485 serial port.
Firmware Upgrade is perform via direct serial connection to the controller.

EasyIO FD-20i User Reference v1.2
Hardware Configurations
Power supply Connection
Both AC and DC can be used for EasyIO FD-20i controller. Refer to electrical specification for the working
range. In order to avoid damage on the controller input/output devices and RS485 connection, use
individual power supply for each controller. If a single power supply is used, make sure controller power
supplies are connected with the same polarity.
Electrical Characteristic
Power Supply
24V AC +/- 5% or 24V DC +20%/-15%
Consumption
< 500 mA
Operating Temperature
32 to 150 Deg-F (0 to 65 Deg-C)
Storage Temperature
-4 to 150 Deg-F (-20 to 65 Deg-C)
Operating Humidity
10% to 70% relative humidity non-
condensing
Power Supply Connection
Multiple controllers share single transformer connection

EasyIO FD-20i User Reference v1.2
RS485 Connection
RS485 connection must be terminated at both ends with termination resistor, typically 120 Ohms. It is
recommended to use shielded twisted pair wire (STP) for the wiring. Lightning protection circuit is
recommended to be installed at one end of the wiring. The controller should be wired in daisy chain
network topology as shown as image below. If wire branch can be avoided, keep it as short as possible,
and never connect more than one device to the wire branch.
Be careful if single power supply is used for all connected RS485 device, make sure all devices are
having the same ground connection. Make sure you are connecting the same wire for the same
terminal position, all “H” terminals connected to the same wire.
Daisy Chain Network Topology
RS485 Connection
RS 485 Serial port settings.
Every EasyIO FC controller comes with 1 physical RS -485 ports respectively.
However EasyIO provide 2 sets of RS-485 terminals for easy wiring terminations.
Below is a table showing the default details for serial port.
Port Number
Protocol Communications supported
Default Serial port settings
Remarks
Port 1
Modbus OR BACnet
Protocol selection is done via DIP switch 1.
DIP 1 = OFF = Modbus RTU
DIP 1 = ON = BACnet MSTP
Modbus
Baud Rate : 19.2K
Parity : even
Data Bit : 8 (Not editable)
Stop Bit : 1
BACnet
Baud Rate : 19.2K
-

EasyIO FD-20i User Reference v1.2
Image below show the DIP switch settings details.
For serial addressing it uses binary bit. The Least Significant Bit (LSB) in DIP 8. The Most Significant Bit
(MSB) is DIP 2.
The white the spot/white square represent the DIP switch toggle button.
EasyIO FC-20 enlarged DIP switch Setting
DIP switch
number
Functions
Remarks
1
Protocol Setting
On = Bacnet MSTP
Off = Modus RTU
2
Serial Address (Address 64)
MSB
3
Serial Address (Address 32)
4
Serial Address (Address 16)
5
Serial Address (Address 8)
6
Serial Address (Address 4)
7
Serial Address (Address 2)
8
Serial Address (Address 1)
LSB
117

EasyIO FD-20i User Reference v1.2
Universal Input Connection
EasyIO FD-20i has ten (10) non-isolated universal inputs. The universal input supports either resistance or
digital voltage free contacts.
Resistance –The working range of resistance is 400 Ohm –300 KOhms. If the input is configured as
Thermistor type, the system provides 10 customizable temperature lookup tables for resistance to
temperature translation. The commonly used Thermistor like 10K, 10K with Shunt.
Temperature table selection. Temperature table selection is via BACnet objects or Modbus register.
By default each UI channel temperature table is set to table 1.
Table
Number
Temperature Table VS Sensor
Type
Conversion
1
NTC 10K Type 2
Celsius
2
NTC 10K Type 2 Shunt 11K
Celsius
3
NTC 10K Type 3
Celsius
4
NTC 10K Type 3 Shunt 11K
Celsius
5
NTC 20K
Celsius
6
NTC 10K Type 2
Fahrenheit
7
NTC 10K Type 2 Shunt 11K
Fahrenheit
8
NTC 10K Type 3
Fahrenheit
9
NTC 10K Type 3 Shunt 11K
Fahrenheit
10
NTC 20K
Fahrenheit
Universal Input Connection
Digital Input Connection
EasyIO FD-20i has ten (10) non-isolated voltage free contacts digital inputs.

EasyIO FD-20i User Reference v1.2
Physical Input Terminal
Digital Imput Block Channel
DI 1
DI 1
DI 2
DI 2
DI 3
DI 3
DI 4
DI 4
DI 5
DI 5
DI 6
DI 6
DI 7
DI 7
DI 8
DI 8
DI 9
DI 9
DI 10
DI 10
UI1
DI 11
UI2
DI 12
UI3
DI 13
UI4
DI 14
UI5
DI 15
UI6
DI 16
UI7
DI 17
UI8
DI 18
UI9
DI 19
UI10
DI 20

EasyIO FD-20i User Reference v1.2
Buttons and Indications
The controller will perform a hardware reset when the Reset Button is toggle.
The Service button is used to activate the built-in bootloader program for software upgrade.
Each digital output has a correspondence LED to indicate its current state.
Button and LED indications
LED Conditions
Description
1
PWR
PWR is used to indicate the presence of
24VAC power source, and internal power
2
ERR
ERR is to indicate whenever there is
communication errors.
3
STS
STS is used to indicate the heartbeat of the
Microcontroller. The STS LED will blink at
1-second interval in normal operation
condition.
4
TXRX
TXRX is used to indicate when there are
communication activities (Transmitting or
Receiving) on the communication port.
Technical Support
For technical issue, please contact
Worldwide and Asia Pacific Support : [e-mail]
Americas Support : [e-mail]
Europe Support : [e-mail]