Coolautomation Coolmasternet User manual

CoolMasterNet PRM

Document Revision 0.7 1/12/2017

www.coolautomation.com

CoolMasterNet

Universal Interface Adapter

for HVAC Systems

1. During the HVAC system automatic operations the CoolMasterNet must be disconnected from the system.

Examples of the automatic operations are:

· Test

· Reset

· Automatic charge

2. Do not change the original positions of the quadruple dip switch S inside CoolMasterNet when using it with

VRV/VRF systems.

Attention

WEEE Directive & Product Disposal

At the end of its serviceable life, this product should not be treated as household or general

waste. It should be handed over to the applicable collection point for the recycling of electrical

and electronic equipment, or returned to the supplier for disposal.

3

Contents

CoolMasterNet PRM

Table of Contents

1Document Revision History 5

2Acronyms 6

3Layout 7

4Connections 8

........................................................................................................................................................................ 8

4.1 HVAC Lines

........................................................................................................................................................................ 8

4.2 HomeAutomation/BMS Protocols

........................................................................................................................................................................ 9

4.3 RS232 Port

........................................................................................................................................................................ 9

4.4 Ethernet .......................................................................................................................................................... 10ASCII I/F IP Server .......................................................................................................................................................... 10ModBus IP

........................................................................................................................................................................ 10

4.5 RS485 .......................................................................................................................................................... 10ModBus RTU .......................................................................................................................................................... 10CoolGate 4 .......................................................................................................................................................... 11CoolGate 5

........................................................................................................................................................................ 12

4.6 GPIO

........................................................................................................................................................................ 13

4.7 USB

........................................................................................................................................................................ 13

4.8 Power

5DIP Switches 14

6ASCII I/F 16

........................................................................................................................................................................ 16

6.1 General Protocol Definitions

.......................................................................................................................................................... 16Messaging .......................................................................................................................................................... 16Exit Code .......................................................................................................................................................... 17UID

........................................................................................................................................................................ 18

6.2 Commands Reference

.......................................................................................................................................................... 18Configuration Commands

......................................................................................................................................................... 18set ......................................................................................................................................................... 19line ......................................................................................................................................................... 21ifconfig ......................................................................................................................................................... 22boot ......................................................................................................................................................... 22sddp ......................................................................................................................................................... 23knx ......................................................................................................................................................... 25props ......................................................................................................................................................... 26link ......................................................................................................................................................... 26plug ......................................................................................................................................................... 27hdl ......................................................................................................................................................... 28simul ......................................................................................................................................................... 28gpio

4

Contents

CoolMasterNet PRM

......................................................................................................................................................... 29info ......................................................................................................................................................... 30modbus .......................................................................................................................................................... 31HVAC Status and Control Commands

......................................................................................................................................................... 32on ......................................................................................................................................................... 32allon ......................................................................................................................................................... 32off ......................................................................................................................................................... 33alloff ......................................................................................................................................................... 33cool ......................................................................................................................................................... 33heat ......................................................................................................................................................... 34fan ......................................................................................................................................................... 34dry ......................................................................................................................................................... 34auto ......................................................................................................................................................... 35haux ......................................................................................................................................................... 35temp ......................................................................................................................................................... 36fspeed ......................................................................................................................................................... 37swing ......................................................................................................................................................... 37filt ......................................................................................................................................................... 37stat ......................................................................................................................................................... 38ls ......................................................................................................................................................... 39ls2 ......................................................................................................................................................... 39query ......................................................................................................................................................... 41feed ......................................................................................................................................................... 41wh ......................................................................................................................................................... 42main ......................................................................................................................................................... 43vam ......................................................................................................................................................... 44lock ......................................................................................................................................................... 45group ......................................................................................................................................................... 45CA ......................................................................................................................................................... 46va

Document Revision History

CoolMasterNet PRM Rev 0.7 5

1 Document Revision History

0.7 - Added Haier

0.6 - Added Chigo

0.5 - Added Midea, Kentatsu, Trane, Fujitsu

0.4 - Initial

0.3 - Preliminary

Acronyms

CoolMasterNet PRM Rev 0.7 6

2 Acronyms

DTE

Data Terminal Equipment

ETH

Ethernet

GPIO

General Purpose Input/Output

HVAC

Heating Ventilation and Air Conditioning

TBD

To Be Defined

Layout

CoolMasterNet PRM Rev 0.7 7

3 Layout

1. USB Host, HVAC Line L8

2. Power

3. Power Plug

4. RS232 Port

5. HVAC Line L1

6. HVAC Line L2

7. HVAC Line L3 or RS485 Port

8. Ethernet Port

9. GPIO

10. HVAC Line L7

11. HVAC Line L6

12. HVAC Line L5

13. HVAC Line L4

14. USB Device Port

15. DIP Switches P,Q, R,S

16. LCD with Touch Screen

Connections

CoolMasterNet PRM Rev 0.7 8

4 Connections

4.1 HVAC Lines

CoolMasterNet supports eight HVAC Lines labeled as L1 ... L8 (see Layout), intended for connection to various

HVAC systems. All eight HVAC Lines can be used simultaneously (except L1 with L5 and L2 with L6) and

independently according to CoolMasterNet configuration. Most of the HVAC Lines capable to support a number

of HVAC Types as specified in table below, but one at time, according to configuration of the specific Line.

HVAC Manufacturer

Acronym

L1

L2

L3

L4

L5

L6

L7

L8

Daikin

DK

P

Mitsubishi Electric

ME

P

Sanyo

SA

P

Toshiba

TO

P

Panasonic

PN

P

Hitachi

HT

P

LG

P

Mitsubishi Heavy Industries

MH

P

Gree

GR

P

Midea

MD

P

Kentatsu

KT

P

Trane

TR

P

Chigo

CG

P

Fujitsu

FJ

P

Samsung

SM

P

Tadiran Inverter

TI

P

Meitav

MT

P

Haier

HA

P

Notes:

·DIP Switches Qand Rare used to adjust lines L1 and L2 internal parameters to meet specific HVAC Type

requirements.

·Lines L1 and L5 share the same internal resources of CoolMasterNet and can not be used simultaneously.

·Lines L2 and L6 share the same internal resources of CoolMasterNet and can not be used simultaneously.

DIP Switch P3 defines which line is enabled.

·Lines L6 and L7 can be linked into a single line L7 with polarity auto-detection, by DIP Switches P1 and P2.

Line L2 can be enabled in this case.

·Line L3 is by default used for ModBus RTU RS485 communication.

4.2 HomeAutomation/BMS Protocols

CoolMasterNet supports several Home Automation/BMS protocols.

Home Automation/BMS

Protocol

Acronym

Line(s)/Port

KNX

L3

PlugBus (CoolHub)

CH

L3,L4,L5,L6,L7

HDL buspro 4-wire

HDL

L3,L4,L5,L6,L7

HDL buspro IP

Ethernet

Connections

CoolMasterNet PRM Rev 0.7 9

ModBus RTU CoolGate 4

CG4

L3,L4,L5,L6,L7

ModBus RTU CoolGate 5

CG5

L3,L4,L5,L6,L7

ModBus IP

Ethernet

SDDP

Ethernet

ASCII I/F

RS232, Ethernet

CoolRemote

Ethernet

4.3 RS232 Port

RS232 Interface on CoolMasterNet is available from the RS232 DB9 female connector. Below is a DB9

connector front view and signals table.

DB9 Pin

Signal Lvel

Description

2

±12V

TxD (Data from

CoolMasterNet to DTE

)

3

±12V

RxD (Data from DTE to

CoolMasterNet)

5

GND

Ground

1,4,6,7,8

Not Connected

Gender and pinouts of the RS232 cable supplied with CoolMasterNet are suitable for connection to PC RS232

port directly or via standard RS232 to USB adapter. Maximal length of the RS232 Cable should not exceed 25m.

By default RS232 Interface is dedicated for ASCII I/F. The default CoolMasterNet RS232 Port settings are:

Baud Rate

9600

Data Bits

8

Parity Control

None

Stop Bits

1

Flow Control

None

4.4 Ethernet

CoolMasterNet incorporates an IEEE 802.3 compatible 10/100 Mb/s Ethernet port supported via RJ45

connector. Below are main port features.

Parameter

Value

Notes

Max Ethernet Cable Length

137m

CAT5 twisted pair cable

Bit Rate

10/100 Mb/s

Supported Ethernet Protocols

10BASE-T/100BASE-TX

Protocol Auto-Negotiation

Enabled

Against Link Partner

Connections

CoolMasterNet PRM Rev 0.7 10

RJ45 connector comprises Link and Activity indication LEDs providing following statuses.

LED

Color

Function

Link Led

Green

ON for good link

OFF for no link

Activity Led

Orange

BLINK for Tx/Rx Activity

Ethernet port is used by a number of protocol modules available in CoolMasterNet

·ASCII I/F (via ASCII I/F IP Server)

·ModBus IP

·HDL buspro IP

·SDDP

·CoolRemote

Network setting of the CoolMasterNet are controlled with ifconfig command.

4.4.1 ASCII I/F IP Server

ASCII I/F IP Server referenced as aserver is a classic row TCP/IP socket server. Aserver has following default

characteristics:

Maximal number of simultaneous connections

4

Default TCP/IP port

10102

Prompt character >

enabled

Aserver can be configured with setcommand.

4.4.2 ModBus IP

4.5 RS485

By default Line L3 is used as an RS485 Interface line for DTE connection. CoolMasterNet supports the following

RS485 based protocols:

·ModBus RTU (Slave mode)

4.5.1 ModBus RTU

CoolMasterNet can be used as a ModBus RTU slave device working in accordance with Modbus-IDA.ORG

"MODBUS over serial line specification and implementation guide". RS485 default frame format is

Baud Rate

9600

Data Bits

8

Parity Control

None

Stop Bits

1

Flow Control

None

4.5.2 CoolGate 4

CoolGate 4 is based on ModBus RTU protocol. Its address map is similar to CoolGate device, previously

manufactured by CoolAutomation (see CoolGate PRM for more information). CoolGate 4 protocol can be used

for backward compatibility.

CoolAutomation CoolMasterNet User manual

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