CoolAutomation CooLinkHub User manual

©2017
CooLinkHubPRM
CooLinkHub
Universal Interface Adapter
for HVAC Split Systems
Document Revision 1.0 23/09/2017
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CooLinkHub PRM 1.0
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Contents
Table of Contents
1Revision History ................................................................................................................................. 4
2ACRONYMS ........................................................................................................................................ 5
3LAYOUT ............................................................................................................................................... 6
3.1 LCDScreen .................................................................................................................................................................................7
4CONNECTIONS .................................................................................................................................. 8
4.1 Communication Lines ..........................................................................................................................................................8
PBUS .......................................................................................................................................................................................... 84.1.1
4.2 RS232Port ...................................................................................................................................................................................8
4.3 Ethernet ........................................................................................................................................................................................9
ASCII I/FIP Server ................................................................................................................................................................ 94.3.1 CoolRemote CloudConnection ......................................................................................................................................... 104.3.2
5ASCII I/F ............................................................................................................................................ 11
5.1 General Definitions .............................................................................................................................................................11
Messaging .............................................................................................................................................................................. 115.1.1 Exit Code ................................................................................................................................................................................. 115.1.2 UID ........................................................................................................................................................................................... 135.1.3
5.2 Configuration Commands ...............................................................................................................................................14
set ............................................................................................................................................................................................. 145.2.1 ifconfig..................................................................................................................................................................................... 165.2.2 props ........................................................................................................................................................................................ 175.2.3
5.3 HVACStatusand Control Commands ......................................................................................................................18
on .............................................................................................................................................................................................. 195.3.1 allon.......................................................................................................................................................................................... 195.3.2 off .............................................................................................................................................................................................. 195.3.3 alloff ......................................................................................................................................................................................... 205.3.4 cool ........................................................................................................................................................................................... 205.3.5 heat .......................................................................................................................................................................................... 205.3.6 fan............................................................................................................................................................................................. 215.3.7 dry ............................................................................................................................................................................................. 215.3.8 auto .......................................................................................................................................................................................... 215.3.9 haux .......................................................................................................................................................................................... 225.3.10 temp ......................................................................................................................................................................................... 225.3.11 feed .......................................................................................................................................................................................... 235.3.12 fspeed ...................................................................................................................................................................................... 245.3.13 swing ........................................................................................................................................................................................ 255.3.14 filt .............................................................................................................................................................................................. 255.3.15

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Contents
ls................................................................................................................................................................................................ 265.3.16 ls2 ............................................................................................................................................................................................. 275.3.17 query ........................................................................................................................................................................................ 285.3.18

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CooLinkHub PRM 1.0
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Revision History
1Revision History
Revision
Changes
1.0.0
Initial

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CooLinkHub PRM 1.0
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ACRONYMS
2 ACRONYMS
DC
Digital Current
DTE
Data Terminal Equipment
ETH
Ethernet
GPIO
General Purpose Input/Output
HVAC
HeatingVentilationAir Conditioning
MAC
Media AccessControl
LCD
Liquid Crystal Display
PRM
Programmer's Reference Manual

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CooLinkHub PRM 1.0
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LAYOUT
3 LAYOUT
(1) RS232, (2) IO Connector
Pin Number
Pin Name
Function
1
RS232TX
RS232Transmit
2
RS232RX
RS232Receive
3
VDC -
Ground
4
GPIO2
General Purpose I/O
5
GPIO1
General Purpose I/O
(3) Power, (4) PBUS,(5) Modbus Connector
Pin Number
Pin Name
Function
1
VDC +
Input Voltage
2
VDC -
Ground
3
PBUS 1
PBUS 1(+) Terminal

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LAYOUT
4
PBUS 2
PBUS 2(-) Terminal
5
MODA
ModbusA(+) Terminal
6
MODB
ModbusB(-) Terminal
(6) Power Connector
Used to connect 12-24V DC power supply adapter.
(7) ETH Connector
RJ45connector for ETH network.
(8) Mini USB Device Connector
Used to connect CooLinkHubtoPC USB Host for configurationand firmware updates.
(9) LCD
Alphanumeric 8x2 charactersLCDscreen.
3.1 LCD Screen
CooLinkHub is equippedwithan alphanumeric 8x2characters LCD that presents most of the important
device parametric andstatus information.
(1) ETH network connection status
Disconnected, Connected
(2) CoolRmote cloudconnectionstatus
Not connected, Connected, Connected, communication in
progress
(3) HVAC line communication status
RX, TX
(4) Every one minute IP address(if acquired) and S/N are
displayed
(5) Indoor unit UID (L2.001on this picture)
(6) Indoor unit status
ON, OFF
(7) Set temperature
(8) Fanspeed
High, Medium, Low, Auto
(9) Operationmode
CL - Cool, HT - Heat, FA - Fan, DR - Dry, AU- Auto

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CONNECTIONS
4 CONNECTIONS
4.1 Communication Lines
CooLinkHubsupportsa number of communicationlinesintendedfor connectiontoPBUS interface aswell
as integration withHome Automation and BMS control systems.
Line Type
Acronym
L1
L2
L3
L4
L5
HVAC
PBUS Master (PBM )
CH
Rolbit Zone Controller
RLBT
Home Automation / BMS
KNX
KNX
ModbusRTU
CG5
HDL
HDL
4.1.1 PBUS
PBUS isa CoolAutomation’sproprietary bus interface, based on shielded2-wiredcable (AWG24). It utilizes
free network topology.
PBUS is intendedfor connection of CoolPlug andThermoPaddevicestoCooLinkHub. PBUS isa solution
for complete integration of (multi) split HVAC unitswithHome AutomationandBMS systems.
4.2 RS232 Port
RS232 Interface in CooLinkHubisavailable from the RS232/IO connector. RS232harness, providedwith
CooLinkHub, routesRS232signalstoDB9 connector asshownbelow.
RS232/IO Pin
DB9 Pin
Signal Level
Description
1
2
±12V
TxD Data from CooLinkHub
2
3
±12V
RxD Data toCooLinkHub
3
5
GND
Ground
Maximal length of the RS232Cable should not exceed25m. The default CooLinkHubRS232Port settings
are:
Baud Rate
9600
Data Bits
8
Parity Control
None
StopBits
1
Flow Control
None
By default RS232 Interface is dedicated for ASCII I/Fprotocol.

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CONNECTIONS
4.3 Ethernet
CooLinkHub incorporatesan IEEE 802.3compatible 10/100 Mb/s Ethernet port available via RJ45
connector. Ethernet port hasa following features:
Parameter
Value
Notes
Max Ethernet Cable Length
137m
CAT5twistedpair cable
SupportedBit Rate
10/100 Mb/s
SupportedEthernet Protocols
10BASE-T/100BASE-TX
Protocol Auto-Negotiation
Enabled
Against Link Partner
RJ45connector comprises Link and Activity indication LEDsusedasspecifiedbelow.
LED
Color
Function
Link Led
Green
ON for goodlink, OFFfor no link
Activity Led
Orange
BLINKING for Tx/Rx Activity
Ethernet interface isusedby a number of protocol modulesavailable inCooLinkHub
· ASCII I/F(via ASCII I/FIP Server)
· ModbusIP (see ModbusIntegrationGuidlinesdocument)
· HDLbusproIP
· SDDP
· CoolRemote
Network setting of the CooLinkHub are controlledwith ifconfigcommand.
4.3.1 ASCII I/F IP Server
ASCII I/FIP Server referencedasAserver isa classic row TCP/IP socket server. Aserver isstartedby
CooLinkHubonce the Ethernet link is establishedandIP address isacquired. Aserver has following default
characteristics:
Maximal number of simultaneous connections
4
Default TCP/IP listening port
10102
Prompt character >
enabled
Aserver can be configured withset command.
The screenshoot below illustratesthe connection toAserver withPuTTY utility (CooLinkHubIP address in
this example is192.168.1.110).

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CONNECTIONS
4.3.2 CoolRemote Cloud Connection
CooLinkHubisconstantly maintaining connectionwithCoolRemote cloudserver once TCP/IP networking
with internet accessisestablished. Connectionis made via TCP port 10101 on CoolRemote cloud server
side. Unless firewall is involved no special network configurationare required on client side.