Can't control the frequency Converter via RS 485

Please help me. Can't control the frequency Converter via RS 485 Modbus. ABB frequency converters are easily controlled via ACS_COM_MOD_RU and ACS_DRIVERS_CTRL_STANDARD. I know the addresses of the registers to set the frequency and the command word. With the help PLC firms "ARIES" I controlled frequency Converter. There is open access to "PLC Configuration" in Codesys, and in Automation Builder everything is closed!!!!

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boris-r Rank: 5253

Asked 1 year ago

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Hi Boris

first off all, you need to specify the family type of ABB drives. I don't know your PLC firm "ARIES", I can't help you with this specific product.

Next, you can try to use my app at the follow link for the basics instruction to command one ABB drives via ModBus RTU.

https://forum-controlsystems.abb.com/...

Hope this help you

BR

Flavio

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by boris-r Rank: 5253 on 10/9/2019 1:35:29 AM | Like (0) | Report

With PLC "ARIES" I have all is obtained. Since there are only CODESYS.
I have ABB PM573-ETH. One of my frequency converters is not ABB.

by Flavio Mussolin AKS expert

Rank: 3 on 10/9/2019 1:44:08 AM | Like (0) | Report

Hi
.... to solve easily the mistake, you can use ABB drives!
Seriously, not knowing what kind of ModBus drives and addresses it uses, I don't know how to help you ...

by boris-r Rank: 5253 on 10/9/2019 1:47:57 AM | Like (0) | Report

In Automation Builder I can only ABB invertor?

by Flavio Mussolin AKS expert

Rank: 3 on 10/9/2019 2:29:22 AM | Like (0) | Report

Hi
Automation builder, like almost all design suites, has its own products in the library. If you wanted to use other drives, for example with a profibus field bus, you should add the GSD files of the products you want to use, but this does not mean that the drive programming becomes "transparent" using Automation Builder.
So, if I understand correctly, you have to get the ModBus register references of the drive you want to use and get functional read and write blocks in Codesys. You can't add different brands using Modbus RTU as far as I know

by boris-r Rank: 5253 on 10/9/2019 2:32:40 AM | Like (0) | Report

Yes you are right

by boris-r Rank: 5253 on 10/9/2019 5:35:32 PM | Like (0) | Report

67 / 10000
АНГЛИЙСКИЙ
Перевести вGoogleBing
So other drives I can't use in Automation Builder?

by boris-r Rank: 5253 on 10/9/2019 5:47:18 PM | Like (0) | Report

Means only "profibus" module?

by Flavio Mussolin AKS expert

Rank: 3 on 10/9/2019 10:56:21 PM | Like (0) | Report

Hi
no, Automation Builder accept more types of field bus, for example ProfiNet, EtherCat, Canopen , Ethernet IP and so other....
What kind of inverter would you like to use?

by boris-r Rank: 5253 on 10/10/2019 12:10:07 AM | Like (0) | Report

I'm just trying to send using COM_MOD_MAST data to the desired address-does not work!
I try to transfer data to another PLC over IP using ETH_MOD_MAST - does not work! Just silence and ALL!

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Flavio Mussolin AKS expert

Rank: 3

Answered 1 year ago

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Can't control the frequency Converter via RS 485

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