Difference between revisions of "Modbus RTU"

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(Created page with "== Modbus RTU Configuration == CoolMasterNet Modbus RTU is activated with below command: {{Terminal| >'''line type L3 CG5'''<br> OK, Boot Required!<br> >}} CoolMasterNet has t...")
 
 
(9 intermediate revisions by one other user not shown)
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The Modbus functionality of CoolMasterNet is fully described in [https://coolautomation.com/wp-content/uploads/sites/2/2021/04/Modbus-guidelines.pdf '''Modbus Guidelines'''] document
 +
 
== Modbus RTU Configuration ==
 
== Modbus RTU Configuration ==
 
CoolMasterNet Modbus RTU is activated with below command:
 
CoolMasterNet Modbus RTU is activated with below command:
Line 7: Line 9:
 
CoolMasterNet has to be restarted to run Modbus RTU for the first time.  
 
CoolMasterNet has to be restarted to run Modbus RTU for the first time.  
 
To quire current Modbus RTU configuration use '''line''' command:
 
To quire current Modbus RTU configuration use '''line''' command:
−
{{Terminal|
+
{{Terminal |
−
>'''line'''<br>
+
1=>'''line'''<br>
−
  L1: SA Master U00/G00 myid:E5<br>
+
L1: SA Master U00/G00 myid:E5<br>
−
  Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
+
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
−
  L2: DK Slave U00/G00 myid:0B<br>
+
L2: DK Slave U00/G00 myid:0B<br>
−
  Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
+
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
−
  L3: CG5 Modbus Address:0x40(64) 9600_8N1<br>
+
<span style="color:#FF8080">
−
  Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
+
L3: CG5 Modbus Address:0x40(64) 9600_8N1<br>
−
  L4: MH SLink:N U00/G00 myid:C900<br>
+
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
−
  Tx:0/2 Rx:0/2 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
+
</span>
−
  L5: Unused<br>
+
L4: MH SLink:N U00/G00 myid:C900<br>
−
  Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
+
Tx:0/2 Rx:0/2 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
−
  L6: Unused<br>
+
L5: Unused<br>
−
  Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
+
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
−
  L7: LG Master U00/G00<br>
+
L6: Unused<br>
−
  Tx:983/1066 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
+
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
−
  L8: Unused<br>
+
L7: LG Master U00/G00<br>
−
  Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
+
Tx:983/1066 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
 +
L8: Unused<br>
 +
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0<br>
 
OK<br>
 
OK<br>
 
>}}
 
>}}
  
−
<div id="ModbusIP_VA"></div>
+
The rest is similar between Modbus RTU and Modbus IP. Follow the link to [[Modbus_IP#ModbusIP_VA|VA Concept]].
−
== Virtual Address (VA) Concept ==
 
−
In order to simplify translation of the UID (like '''L5.102''') into Modbus object address, CoolMasterNet uses VA, associated with UID. Each UID can have none, one or a number of associated VA's. VA's are plain numbers starting from 001 (decimal). To let CoolMasterNet automatically associate VA's with existing (visible with '''ls''' command) UID's run:
 
−
{{Terminal|
 
−
>'''va auto'''<br>
 
−
OK<br>
 
−
>}}
 
−
This command will delete all existing associations and will create new associations one to one (one VA to one UID). At any time VA associations list can be retrieved with plain '''va''' command:
 
−
{{Terminal|
 
−
>'''va'''<br>
 
−
L1.101 --> 001 [Hex: 0x0011 &#124; Dec: 00017]<br>
 
−
L1.102 --> 002 [Hex: 0x0021 &#124; Dec: 00033]<br>
 
−
L1.103 --> 003 [Hex: 0x0031 &#124; Dec: 00049]<br>
 
−
L1.104 --> 004 [Hex: 0x0041 &#124; Dec: 00065]<br>
 
−
L1.105 --> 005 [Hex: 0x0051 &#124; Dec: 00081]<br>
 
−
OK<br>
 
−
>}}
 
−
Hex and Dec numbers printed after VA are Base Address used to access Modbus objects related to UID-VA association. Base Address can be calculated as '''''BaseAddress = VA*16 + 1'''''. For example Indoor Unit L1.102 has associated VA = 002, thus Base Address = 2*16+1 = 33.
 
−
 
 
−
== Discrete Inputs, Coils and Registers ==
 
−
Once the Base Address is determined, access to the specific Indoor Unit parameter(s) is done via Modbus objects listed below.
 
−
{| class="wikitable"
 
−
|-
 
−
| Base<br>Address
 
−
! Discrete<br>Inputs
 
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! Coils
 
−
! Holding<br>Registers
 
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! Input<br>Registers
 
−
|-
 
−
| +0
 
−
| rowspan="9" | Reserved
 
−
| On/Off
 
−
| [[#Mode|Operation Mode]]
 
−
| [[#UID|UID]]
 
−
|-
 
−
| +1
 
−
| Filter Sign
 
−
| [[#Fspeed|Fan Speed]]
 
−
| Room Temperature x10
 
−
|-
 
−
| +2
 
−
| rowspan="7" | Reserved
 
−
| Set Temperature x10
 
−
| Failure Code String<br> first two characters
 
−
|-
 
−
| +3
 
−
| On/Off
 
−
| Failure Code String<br> last two characters
 
−
|-
 
−
| +4
 
−
| Filter
 
−
| rowspan="9" | Reserved
 
−
|-
 
−
| +5
 
−
| [[#Swing|Swing]]
 
−
|-
 
−
| +6
 
−
| Room Temperature x10 (RO)
 
−
|-
 
−
| +7
 
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| Failure Code (RO)
 
−
|-
 
−
| +8
 
−
| Lock Bits
 
−
|-
 
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| +9
 
−
| Digital Input 1
 
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| Digital Output 1
 
−
| rowspan="7" | Reserved
 
−
|-
 
−
| +10
 
−
| Digital Input 2
 
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| Digital Output 2
 
−
|-
 
−
| +11
 
−
| Digital Input 3
 
−
| Digital Output 3
 
−
|-
 
−
| +12
 
−
| Digital Input 4
 
−
| Digital Output 4
 
−
|-
 
−
| +13
 
−
| Digital Input 5
 
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| Digital Output 5
 
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| Analog Input 1
 
−
|-
 
−
| +14
 
−
| Digital Input 6
 
−
| Digital Output 6
 
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| Analog Input 2
 
−
|-
 
−
| +15
 
−
| Reserved
 
−
| Reserved
 
−
| Reserved
 
−
|}
 
−
 
 
−
<span id="UID">'''UID Encoding'''</span>
 
−
{| class="wikitable"
 
−
|-
 
−
|MSB<br>Bits 15..12
 
−
|  <br>Bits 11..8
 
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|LSB<br>Bits 7..0
 
−
|-
 
−
| Ln
 
−
| X
 
−
| YY
 
−
|-
 
−
|}
 
−
Corresponds to Ln.XYY (like for example L1.102)
 
−
 
 
−
<br>
 
−
<span id="Mode">'''Operation Mode Encoding'''</span>
 
−
{| class="wikitable"
 
−
|-
 
−
|'''0''' - Cool
 
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|'''1''' - Heat
 
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|'''2''' - Auto
 
−
|'''3''' - Dry
 
−
|-
 
−
|'''4''' - HAUX
 
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|'''5''' - Fan
 
−
|'''6''' - HH
 
−
|
 
−
|-
 
−
|'''8''' - VAM Auto
 
−
|'''9''' - VAM Bypass
 
−
|'''10''' - VAM Heat Exch.
 
−
|'''11''' - VAM Normal
 
−
|}
 
−
 
 
−
<br>
 
−
<span id="Fspeed">'''Fan Speed Encoding'''</span>
 
−
{| class="wikitable"
 
−
|-
 
−
|'''0''' - Low
 
−
|'''1''' - Medium
 
−
|'''2''' - High
 
−
|-
 
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|'''3''' - Auto
 
−
|'''4''' - Top
 
−
|'''5''' - Very Low
 
−
|-
 
−
|
 
−
|'''7''' - VAM Super High
 
−
|'''8''' - VAM Low Fresh Up
 
−
|-
 
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|'''9''' - VAM High Fresh Up
 
−
|
 
−
|
 
−
|-
 
−
|}
 
−
 
 
−
<br>
 
−
<span id="Swing">'''Swing Encoding'''</span>
 
−
{| class="wikitable"
 
−
|-
 
−
|'''0''' - Vertical
 
−
|'''1''' - 30 deg
 
−
|'''2''' - 45 deg
 
−
|'''3''' - 60 deg
 
−
|-
 
−
|'''4''' - Horizontal
 
−
|'''5''' - Auto
 
−
|'''6''' - OFF
 
−
|
 
−
|}
 

Latest revision as of 06:04, 16 July 2021

The Modbus functionality of CoolMasterNet is fully described in Modbus Guidelines document

Modbus RTU Configuration

CoolMasterNet Modbus RTU is activated with below command:

>line type L3 CG5
OK, Boot Required!
>

CoolMasterNet has to be restarted to run Modbus RTU for the first time. To quire current Modbus RTU configuration use line command:

>line

L1: SA Master U00/G00 myid:E5
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0
L2: DK Slave U00/G00 myid:0B
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0
L3: CG5 Modbus Address:0x40(64) 9600_8N1
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0
 L4: MH SLink:N U00/G00 myid:C900
Tx:0/2 Rx:0/2 TO:0/0 CS:0/0 Col:0/0 NAK:0/0
L5: Unused
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0
L6: Unused
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0
L7: LG Master U00/G00
Tx:983/1066 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0
L8: Unused
Tx:0/0 Rx:0/0 TO:0/0 CS:0/0 Col:0/0 NAK:0/0
OK
>

The rest is similar between Modbus RTU and Modbus IP. Follow the link to VA Concept.

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