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Document name: Link IO - Manual 
Document date: 1.2 10/02/2020 

 

  1 

Link IO 

 Manual 

 
Link IO 

 Manual .................................................................................................................................................. 1 

Introduction ..................................................................................................................................................... 4 

Overview ...................................................................................................................................................... 4 

Available models.......................................................................................................................................... 4 

Options ........................................................................................................................................................ 4 

System layout .............................................................................................................................................. 5 

Hardware ......................................................................................................................................................... 5 

Overview ...................................................................................................................................................... 5 

Wiring power supply ................................................................................................................................... 6 

Wiring Universal Channels ........................................................................................................................... 6 

Wiring Digital Outputs ................................................................................................................................. 7 

Wiring Digital Inputs (main unit only) ......................................................................................................... 7 

Wiring Analog Outputs (main unit only)...................................................................................................... 8 

Wiring the RS485 networks ......................................................................................................................... 8 

Setting the expansion ...................................................................................................................................... 9 

Display navigation ......................................................................................................................................... 10 

Display and keys ........................................................................................................................................ 10 

Main menu ................................................................................................................................................ 11 

Configuration password, log in/log out ..................................................................................................... 12 

Warnings and alarms ................................................................................................................................. 13 

Screens diagram ........................................................................................................................................ 14 

The external display (optional part no. LNK-IO-DISP) ................................................................................... 15 

What it is .................................................................................................................................................... 15 

How to connect the external display to the main Link IO unit .................................................................. 16 

I/O readings ................................................................................................................................................... 17 

How the I/O work with Link IO .................................................................................................................. 17 

Universal Channels .................................................................................................................................... 17 

Digital Outputs ........................................................................................................................................... 18 

Digital Inputs and Analog Outputs (main unit only) .................................................................................. 18 

Configure I/O ................................................................................................................................................. 19 

Universal Channels .................................................................................................................................... 19 

Digital Outputs ........................................................................................................................................... 20 

Summary of Contents for Link IO

Page 1: ...it only 8 Wiring the RS485 networks 8 Setting the expansion 9 Display navigation 10 Display and keys 10 Main menu 11 Configuration password log in log out 12 Warnings and alarms 13 Screens diagram 14 The external display optional part no LNK IO DISP 15 What it is 15 How to connect the external display to the main Link IO unit 16 I O readings 17 How the I O work with Link IO 17 Universal Channels 1...

Page 2: ...an IP main unit part number LNK IO20 IP MOD and LNK IO20 IP BAC 29 General settings 30 Configuring number of expansions 30 Temperatures in Celsius or Fahrenheit 30 Permanent memory use 30 Buzzer beeping mode 31 Setting log in password 31 Backup Restore settings 32 Restore factory defaults 33 Software version and software information 35 The Web Configurator 36 Introduction 36 The website and how to...

Page 3: ...Document name Link IO Manual Document date 1 2 10 02 2020 3 BACnet 48 Technical data 52 Drawings 52 Specifications 54 Guidelines for Disposal 56 ...

Page 4: ...trol applications for more than 40 years we have created Link IO a scalable and fully integrated BMS product that will last you for many years to come Now available World Wide Available models LNK IO20 IP MOD Modbus TCP IP Hardware part number LNK IO20 IP LNK IO20 RS MOD Modbus RS485 Hardware part number LNK IO20 RS LNK IO20 IP BAC BACnet Modbus TCP IP Hardware part number LNK IO20 IP LNK IO20 RS ...

Page 5: ...LNK IO20 IP Link IO Main Module Yes Modbus Yes 10 6 2 2 LNK IO20 RS MOD HW LNK IO20 RS Link IO Main Module Yes Modbus Yes 10 6 2 2 LNK IO20 IP BAC HW LNK IO20 IP SW LNK ADD BAC Link IO Main Module Yes Modbus BACnet Yes 10 6 2 2 LNK IO20 RS BAC HW LNK IO20 RS SW LNK ADD BAC Link IO Main Module Yes Modbus BACnet Yes 10 6 2 2 LNK IO16 EXP Link IO Expansion Module Yes 10 6 ...

Page 6: ...ion expansion unit max 15VA 6W AC 24Vac DC 28 36Vdc Wiring Universal Channels Maximum current output 2 mA Maximum connection cable length less than 10 m Thermistor Input Note PT100 uses 2 channels 0 1V 0 5V 0 10V Input 0 20mA 4 20mA Input max 4 per device Digital Input Pulse Input max 2 per device 0 10V Output max 5 per device Actuator on 0 10V or PWM output example ...

Page 7: ...Output 1 to 5 Relay max 5A 250Vac only with NO contacts Output 6 Relay max 1A 250Vac with NO NC contacts Relay out Wiring Digital Inputs main unit only Maximum current output 5 mA Maximum voltage with the contact open 12 Vdc Maximum connection cable length less than 10 m Digital Input ...

Page 8: ...ks to our knowledge base website How to wire an RS485 network https know innon com howtowire non optoisolated How to terminate and bias an RS485 network https know innon com bias termination rs485 network Note the RS485 ports are not opto isolated Carefully check the orientation of the G and G0 terminals on all devices to be the same and the shield to be connected correctly to avoid damaging the u...

Page 9: ...ed in the front from 1 to 4 and the position is as follow Prot Baud Ext The Address dipswitches will need to be configured according to the expansion number from 1 to 10 Expansion addresses will be always consecutive so if you have 2 expansions you will use addresses 1 and 2 if you have 3 expansions you will use addresses 1 2 and 3 and so on Address 4 dip switches configuration is shown for all 10...

Page 10: ...t page visited Go to the main settings menu Go to configuration warnings and alarms screens Settings are password protected and users will have to login to view and edit The password screen is displayed when trying to enter any configuration menu to allow the user to login see in the next chapter how I O readings is the only part always accessible without logging in Settings of all expansions are ...

Page 11: ...ls and Analog output main unit only It also allows the configuration of the output positions in case of an offline if watchdog is enabled Requires to be logged in Auto Manual Allows to configure each output as AUTO controlled by the BMS or any internal function on the Link IO or MANUAL fixed output to a desired state Requires to be logged in Functions Allows to control selected outputs depending o...

Page 12: ...d can be changed from the General settings menu If the wrong password is inserted the setting is blanked and you can try again You can exit this screen by pressing back If the correct password is inserted you will be logged in and you will be able to enter any configuration menu You can log out at any time by holding the button back for 5 seconds until the display goes back to the main screen If y...

Page 13: ...ansions are configured and expansions 4 and 5 are not responding ON Wrong Universal Channel configurations on the local device or an expansion module In this example the reported wrong configuration is in the local main device and specifically there are too many channels configured as 0 10V output and one channel configured as PT100 3 wires with the second channel being used ON No supervisor is co...

Page 14: ...Document name Link IO Manual Document date 1 2 10 02 2020 14 Screens diagram ...

Page 15: ... be used as a commissioning tool to facilitate the operation of an engineer on site having a hand held display available to use But it is also a useful feature when Link IO is enclosed within a panel the external display can be panel mounted and be accessible from outside of the panel door providing all the useful I O live readings and all the capabilities of the on board display The external disp...

Page 16: ...pin connector on the back You will need to provide a cable to connect the RJ12 to the J3 Display port on Link IO following the schematics below The maximum cable length allowed between Link IO and the external display is 10 meters RJ12 pinout RJ12 to Link IO Example The colour scheme is based on a standard RJ12 cable Check your cable single wires colour might be different ...

Page 17: ...ontrolled by a function If an output has been configured in Manual mode from the Auto Manual menu the manual setting will bypass any command from the BMS or any assigned function The icon will be shown next to such output to know it is in manual mode When visualizing the Inputs and Outputs of an expansion an additional icon is displayed on both inputs and outputs in case the expansion is offline w...

Page 18: ... and DO5 is associated to a function The Digital Outputs of an expansion that is momentarily offline are going to display the icon Digital Inputs and Analog Outputs main unit only The main units are equipped with 4 extra points compared to the expansions 2 digital inputs and 2 analog outputs On the main unit local it is possible to visualise such extra points together in one screen The digital inp...

Page 19: ...ut Temperature sensors passive inputs NTC 10K3A1 10 Filter 0 9 0 fast reading no interpolation 9 slow reading 9 readings interpolation NTC 10K4A1 10 NTC CAREL 10 PT1000 10 PT500 10 PT100 3 wires 2 inputs requires the next input to be configured as NOT USED 5 PTC_R 10 NTC 0 150 CAREL 10 NTC 50T90 CAREL 10 NTC 10T170 CAREL 10 Active analog inputs 0 1V 10 0 10V 10 0 5V power from Link 2 0 5V external...

Page 20: ... configure the desired status in case the Watchdog function is used and enabled In the example below all the Digital Outputs are going to an OFF status in case of the Watchdog function driving the outputs Note that output 6 provides a relay with both NO and NC contacts Analog Outputs only main unit The main unit has 2 Digital Inputs and 2 Analog Outputs more compared to the expansion devices The A...

Page 21: ...nsion is restarted Universal Channels Any Universal Channel configured as Output 0 10V or PWM will be available here to be configured in either AUTO controlled by BMS watchdog or functions or in MANUAL mode where a fixed value is set In the example below Universal Channels 1 2 and 4 are configured as Outputs and Universal Channel 2 is fixed to a manual position of 5V 50 Digital Outputs All Digital...

Page 22: ... will maintain the outputs to their last demand status until the expansion is restarted Functions also include pulse counters which store the counted value locally with an embedded scaling function to adapt to the meter pulse strategy Pulse counter 2 pulse counters are available on each main device and expansion The total counter is shown on the top row with Current value Note the display can only...

Page 23: ...tact open enable or reverse contact close enable Leaving the En input to will keep the function always enabled Note if selecting a Universal Channel it MUST be configured as Digital Input On the fourth and fifth row we can find the Analog input value associated to 0 analog output and the value associated to 100 analog output Example 1 out 0 in 20 0 out 100 in 25 0 This will keep the analog output ...

Page 24: ...on On the first row it is possible to select the Universal Channel used as digital input or a dedicated digital input on the main unit local to be rescaled Note the Universal Channel MUST be configured as Digital Input On the second row it is possible to configure whether the signal received should be used direct or reverse Direct will activate the selected output when the input is open 1 while Re...

Page 25: ...sed as enable signal On the main unit it is possible to select also one of the 2 dedicated digital inputs It is also possible to select whether the enable signal is direct contact open enable or reverse contact close enable Leaving the En input to will keep the function always enabled Note if selecting a Universal Channel it MUST be configured as Digital Input Note2 you can use the same enable fun...

Page 26: ...on the output will be triggered ON when the analog input value is equal or below set point hysteresis It would be then maintained ON until the analog input value goes above set point On the last row it is possible to select up to 3 digital outputs to send the output signal out of the device ...

Page 27: ...e outputs to a pre configured pattern Link IO comes with 2 watchdogs the first one is with the BMS If outputs are controlled by the BMS and are not in Manual mode or used by a function enabling the BMS watchdog will get Link IO to verify the BMS commands If the BMS stops polling Link IO for any reason after the configured BMS Timeout the outputs of Link IO and the connected expansions will all be ...

Page 28: ...work If your device is licensed for BACnet the display below will be available so you can choose which protocol to use If Modbus is selected or is the only protocol available the Modbus RTU settings will be displayed on the next screen Otherwise the BACnet MSTP settings will be displayed instead You can select a desired BACnet ID and a separate MAC address Note that not all variables are enabled t...

Page 29: ...Note that because Modbus TCP uses also the IP address to identify the slave unit all slaves in this case could be configured with Modbus ID 1 without a problem For BACnet IP the address IP port and COV increment are available Note that not all variables are enabled to be used with COV All variables can be used in polled mode COV is not mandatory It is possible then to get into the IP port settings...

Page 30: ...evice Temperatures in Celsius or Fahrenheit All Universal Channels configured to read passive analog inputs any NTC PT1000 PT500 PT100 PTC will display a temperature and by default they are shown in C Celsius It is possible to convert the temperatures to F Fahrenheit within the Link IO module so no conversion is required on the BMS Permanent memory use Link IO saves permanent data within its flash...

Page 31: ...on the BMS or similar functions where the set point would constantly change damaging the flash memory in the long run If you plan on using ambient tracking a solution would be to filter the required set point changes within the BMS and send them to Link IO only every 15 minutes for example Buzzer beeping mode By default the on board buzzer gives a feedback beeping on every key pressed This can be ...

Page 32: ...d restore RESTORE DATA all the settings contained in the txt file within the Link IO effectively reducing massively configuration time for extended repeatable configurations The exported file can also be edited with the Web Configurator on our website The Web configurator can then save a new version of the txt file that can be used on the Link IO devices where needed Once the whole configuration h...

Page 33: ...t not be accessible setting log in password lost is probably the main example In this case it is possible to access a system hidden menu by holding both the buttons and pressed until the menu appears about 4 seconds Move to the option Application using the buttons and press The Application sub menu appears From there move to the option Wipe Retain using the buttons Once you press the factory defau...

Page 34: ... AUTO Manual value OFF Auto Manual for Analog Outputs main unit Auto Manual AUTO Manual value 0 Functions Functions in general All inputs NOT SELECTED disabled All outputs NOT SELECTED disabled Network settings Watchdog BMS Enable DISABLED Timeout 30s Watchdog expansions Enable DISABLED RS485 device only Protocol MODBUS RS485 device Modbus Modbus ID 1 Baudrate 19200 Parity NONE Stop bits 1 RS485 d...

Page 35: ...etc and finally write the outputs Link IO power supply type can be showing AC alternating current DC direct current PSU when a dedicated super capacitor module is connected and the mains power supply is missing or N A when there is a problem with the voltage reading internal module The voltage reading in AC is the RMS voltage same as you would read using an external multimeter Note the voltage rea...

Page 36: ...RT_0 txt EXPORT_5 txt EXPORT_67 txt Note2 the file saved from the configuration tool is compatible with both the IP and RS version of Link IO Settings that are not applicable for the destination unit will be simply disregarded The website and how to use it The web tool presents 3 levels of configuration which are like the layout found on the onboard display On the top bar of the web tool looking o...

Page 37: ...ou will be presented then with specific settings for the RS and IP version of Link IO Configure them both if you want to use the same file for both type of devices the file will be compatible Note you will notice that the only missing configuration is the ethernet port IP subnet DNS The configuration of the ethernet port must be done on each device and is currently not available on the web tool ...

Page 38: ...vailable settings for the inputs and outputs The settings are separated with a tab available for the main device and up to 10 other tabs available for the available 10 expansions You will notice that all the input and output settings are available including the watchdog output positions and the auto manual settings ...

Page 39: ...te 1 2 10 02 2020 39 Web tool sections Functions This section allows to configure all the functions available for each device Like for the I O section tabs are available to access the functions of the main unit and each expansion individually ...

Page 40: ...C or when adding the BACnet license later add on part number LNK ADD BAC you will receive a BACnet license file to install on the device so the additional driver can be enabled The license is linked to the individual device using a Unique ID The process of licensing is quite simple if you purchased a LNK IO20 IP BAC or LNK IO20 RS BAC you can skip to step 5 directly ...

Page 41: ...cro cable you can find the USB micro port on Link IO lifting the rubber flap just below the screen b The Link IO will appear as an external drive Find the folder UPGRADE there c Copy and paste each license file in this folder d Safely remove the USB drive Link IO on Windows and disconnect the USB cable Link IO will then recognize the file 7 Option 2 USING A USB MEMORY Get a USB memory stick USB2 0...

Page 42: ...ke up to 10 minutes Do not unplug the USB cable dongle or the power supply during the process Note 3 the upgrade process takes over the 5 minutes backlight timer This means the display backlight will switch off while the upgrade is working Check the screen after 10 minutes you should find the press ENTER to restart the device message Press ENTER and the device should be updated and ready to be use...

Page 43: ...org downloads formatter We are also going to use a USB A female to USB micro male cable called also OTG This allows to use standard USB memory sticks and connect them to the USB micro port of the Link IO unit On the USB memory stick we need to create a folder called UPGRADE and place the Autorun ap1 file within that folder With the USB stick ready we are going to plug it to the USB port of Link IO...

Page 44: ...l 0 0 1 ReadWrite Coil 23 1 Preset Pulse Counter 1 Bool 0 0 1 ReadWrite Coil 24 1 Preset Pulse Counter 2 Bool 0 0 1 ReadWrite ModbusData Index Bit Variable Description DataType Default Direction DiscreteInput 1 1 Digital Input Universal Channel 1 Bool Read DiscreteInput 2 1 Digital Input Universal Channel 2 Bool Read DiscreteInput 3 1 Digital Input Universal Channel 3 Bool Read DiscreteInput 4 1 D...

Page 45: ...hermostat 1 Float 25 0 999 9 999 9 ReadWrite HoldingRegister 41 32 Hysteresis Thermostat 1 Float 2 0 999 9 999 9 ReadWrite HoldingRegister 43 32 Setpoint Thermostat 2 Float 25 0 999 9 999 9 ReadWrite HoldingRegister 45 32 Hysteresis Thermostat 2 Float 2 0 999 9 999 9 ReadWrite ModbusData Index Bit Variable Description DataType Default Min Max Direction InputRegister 1 32 Current Value Universal Ch...

Page 46: ...n10 1 Digital Input Universal Channel 10 Bool Read DiscreteInput n11 1 Current value Digital Output 1 Bool Read DiscreteInput n12 1 Current value Digital Output 2 Bool Read DiscreteInput n13 1 Current value Digital Output 3 Bool Read DiscreteInput n14 1 Current value Digital Output 4 Bool Read DiscreteInput n15 1 Current value Digital Output 5 Bool Read DiscreteInput n16 1 Current value Digital Ou...

Page 47: ...rsal Channel 4 Float Read InputRegister n09 32 Current Value Universal Channel 5 Float Read InputRegister n11 32 Current Value Universal Channel 6 Float Read InputRegister n13 32 Current Value Universal Channel 7 Float Read InputRegister n15 32 Current Value Universal Channel 8 Float Read InputRegister n17 32 Current Value Universal Channel 9 Float Read InputRegister n19 32 Current Value Universal...

Page 48: ...escription DataType Default Direction Binary Input 1 Yes Digital Input Universal Channel 1 Bool Read Binary Input 2 Yes Digital Input Universal Channel 2 Bool Read Binary Input 3 Yes Digital Input Universal Channel 3 Bool Read Binary Input 4 Yes Digital Input Universal Channel 4 Bool Read Binary Input 5 Yes Digital Input Universal Channel 5 Bool Read Binary Input 6 Yes Digital Input Universal Chan...

Page 49: ... 0 999 9 999 9 ReadWrite BACnet Data ID COV Variable Description DataType Default Min Max Direction Analog Input 1 Yes Current Value Universal Channel 1 Float Read Analog Input 2 Yes Current Value Universal Channel 2 Float Read Analog Input 3 Yes Current Value Universal Channel 3 Float Read Analog Input 4 Yes Current Value Universal Channel 4 Float Read Analog Input 5 Yes Current Value Universal C...

Page 50: ...n9 Yes Digital Input Universal Channel 9 Bool Read Binary Input n10 Yes Digital Input Universal Channel 10 Bool Read Binary Input n11 Yes Current value Digital Output 1 Bool Read Binary Input n12 Yes Current value Digital Output 2 Bool Read Binary Input n13 Yes Current value Digital Output 3 Bool Read Binary Input n14 Yes Current value Digital Output 4 Bool Read Binary Input n15 Yes Current value ...

Page 51: ...l Channel 5 Float Read Analog Input n6 Yes Current Value Universal Channel 6 Float Read Analog Input n7 Yes Current Value Universal Channel 7 Float Read Analog Input n8 Yes Current Value Universal Channel 8 Float Read Analog Input n9 Yes Current Value Universal Channel 9 Float Read Analog Input n10 Yes Current Value Universal Channel 10 Float Read Analog Input n13 Yes Current Value of Counter 1 Fl...

Page 52: ...Document name Link IO Manual Document date 1 2 10 02 2020 52 Technical data Drawings Part numbers LNK IO20 IP MOD and LNK IO20 IP BAC Part numbers LNK IO20 RS MOD and LNK IO20 RS BAC ...

Page 53: ...Document name Link IO Manual Document date 1 2 10 02 2020 53 Part number LNK IO16 EXP ...

Page 54: ... reading 0 3 of full scale Precision of analogue output signal 2 of full scale Analogue digital conversion 14 bit Maximum current output 2 mA Maximum connection cable length less than 10 m Passive Inputs NTC 10K3A1 NTC 10K4A1 Carel NTC 10K PT1000 PT500 PT100 3 wires PTC_R Carel NTC 0 150 Carel 50T90 Carel 10T170 Active Inputs 0 1 V 0 10 V 0 5 V 0 20 mA 4 20 mA Digital Inputs Volt free contact Digi...

Page 55: ... scale Analogue digital conversion 14 bit Maximum current output 2 mA Maximum connection cable length less than 10 m Passive Inputs NTC 10K3A1 NTC 10K4A1 Carel NTC 10K PT1000 PT500 PT100 3 wires PTC_R Carel NTC 0 150 Carel 50T90 Carel 10T170 Active Inputs 0 1 V 0 10 V 0 5 V 0 20 mA 4 20 mA Digital Inputs Volt free contact Digital Pulse Counter up to 2KHz digital Frequency Measure up to 2KHz res 1H...

Page 56: ...t be disposed of through specialist waste disposal centres The product contains a battery that must be removed and separated from the rest of the product according to the instructions provided before disposing of the product Improper use or incorrect disposal of the product may negative effects on human health and on the environment In the event of illegal disposal of electrical and electronic was...

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