soft starter drives & frequencey converter

[doki]

I need to help you to work project by LabVIEW

Idea of the project

Work on the external interface to control the Ketrical of Board of Water Pump

Electrical board contains

 Soft starter a type: RVS-Dn 72 , solcon
Frequency converter type: VFD 075E43A , delta

I want to first:
A connection to soft starter and frequency converter "inverter" via RS485 link use Mod Bus Protocol

 

work GUI for soft starter:

The  main menu contain several keys to work
Run ,START, soft START, stop , soft stop and Rest in the event of an Alarm and show the value of voltage and current.

The second list contain  parameter settings to read values and work setting "write" .

The third spectrum describes plant for voltage and current.

The same way we do for frequency converter but the main menu contain  keypad to work high speed , low speed , run , stop

Added menu enables  to work sequence  certain for work different  movements

 

 

Lab View contains a library of Mod Bus Protocol
I do not know how to use it
I have manual for mod bus soft starter and frequency converter

DN_Modbus.pdf

[hooovahh]

Please do not create duplicate posts.  I deleted the other one because that one was in an incorrect topic section.  In the future if you want a topic moved click the Report to Moderator button and request a move.  Here is what I said in the other topic before deleting it:

 

 

Looks like there is some good information in there about how to communicate over RS-485.  What part of your task are you having problems with?  LabVIEW ships with many examples on using VISA to communicate to serial and GPIB.  Go to Help >> Find Examples and search RS-485 to find the relevant ones.

[doki]

 

 

Hi
I've downloaded the Mod bus Library  available
But when they run gives error

Second
I use RS485 link
Name: IFD6500 from delta company
I use LabVIEW version 2012

 

How to generate between LabVIEW and soft starter device
By Mod Bus protocol using VISA laibrary and RS485

How do I read and write to all parameter
Control and monitoring

 then served as the interface as I have said "GUI"

Please attach a similar example of what I want

 

 

[hooovahh]

then served as the interface as I have said "GUI"

Please attach a similar example of what I want

We are not a service.  You are not paying us.  We are here to answer questions and assist those who need help, and to those who put in an effort to learn and do their own work.  You have not posted anything useful or any code that you have tried or described where the issue is only that it doesn't work.

 

I've downloaded the Mod bus Library  available

But when they run gives error

That's great what is the error?  Did you search for it on NI's site?

 

How to generate between LabVIEW and soft starter device

By Mod Bus protocol using VISA laibrary and RS485

How do I read and write to all parameter

Control and monitoring

Did you look at any of the many examples shipped with LabVIEW?  What worked and didn't work?  If you are not getting a response (which you haven't said is true or not) I would make sure that you can get the module to respond with a more low level application like hyper terminal to ensure your setup is not the issue.

[doki]

have to communicate with the device via the opc server

But I want to connect to the device  by LabVIEW

 

Error -1073807202 occurred at VISA Open in GPIB-VISA.vi

[hooovahh]

Here is the description for that error.  I'm guessing you don't have some VISA run-time installed properly.

 

 

VISA or a code library required by VISA could not be located or loaded.  This is usually due to a required driver not being installed on the system.

[Tim_S]

have to communicate with the device via the opc server

But I want to connect to the device  by LabVIEW

 

Error -1073807202 occurred at VISA Open in GPIB-VISA.vi

If you're trying to communicate to an OPC server, then you should be using Datasocket, not VISA (http://zone.ni.com/reference/en-XX/help/371361K-01/lvhowto/openclose_ds_conct_prog/).

[doki]

hi,

I knew the problem
The problem was Visa laibrary is not installed

 

Question
How to Write the address?
as a string? how??

 

i need just write at least one command Correctly

Whoever command,  reading and writing to gives command response
thanks

 

in the modbus manual

Example 1 - Actual Data (3X References)
To read actual parameters 2 and 3 (Current and Voltage, addressed as 1 and 2 hex) of the
RVS-DN with a serial link number of 18, the host computer should send the following frame:
byte 1: Serial Link No. ($18)
byte 2: Function ($04)
byte 3: Starting Address High ($00)
byte 4: Starting Address Low ($01)
byte 5: No. of Points High ($00)
byte 6: No. of Points Low ($02)
byte 7: CRC_Low ($XX)
byte 8: CRC_High ($XX)
The RVS-DN response, (when Current = 400 % of FLA, and Voltage = 420V) is:
byte 1: Serial Link No. ($18)
byte 2: Function ($04)
byte 3: Byte Count ($04)
byte 4: Data High, parameter 2 ($01) (400)
byte 5: Data Low, parameter 2 ($90)
byte 6: Data High, parameter 3 ($01) (420)
byte 7: Data Low, parameter 3 ($A4)
byte 8: CRC_Low ($XX)
byte 9: CRC_High ($XX)
Note: $XX indicates Hexadecimal byte.

 

Do you write the address as a string, such as 180400010002 first calculat crc and write crc low& high in the string

Is there a way to calculate the crc directly without the need for computed
What are the functions necessary