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SolidRio

485 settings in a sequence program

7 posts in this topic

Hello everyone. 

I am trying to cheat GX IEC Developer and set up 38400 baud communication between FX3U and FR-F700 via Inverter communication. In GX IEC Developer you can only set 19200 as max, but 485 communication in FX3U can be set up on 38400 and that works perfectly in GX Works 2. So, i unchecked setting in PLC parameters and using M8002 to write communication setting in D8120 (using CH1 485-BD) but that doesnt work. I tried many ways before writing this and i need some help. 

 

Edited by SolidRio

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Is there anyone reason why you cant use GXWorks2 for this project?

What version of IEC Developer are you using? 

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27 minutes ago, collinsd70 said:

Is there anyone reason why you cant use GXWorks2 for this project?

What version of IEC Developer are you using? 

Yes, because its old big working project. It isnt worth time to rewrite project on GX Works 2. 

v7.04.

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Set the parameters in GXWorks2.

Download but check parameters only  - do not download the program etc.

 

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Okay. So you have the final revision of IEC Developer.

I normally prefer working in IEC Developer but in this case it might be worthwhile to upgrade to GXWorks2, you wouldnt need to 'rewrite' your code, simply just convert between the 2. 

If you want me to take a look at this- send me a PM- otherwise I see no alternative unfortunatley.

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14 hours ago, Veganic said:

Set the parameters in GXWorks2.

Download but check parameters only  - do not download the program etc.

It isnt a bad way, but it would be better to keep all in one project (setting and prog).

14 hours ago, collinsd70 said:

Okay. So you have the final revision of IEC Developer.

I normally prefer working in IEC Developer but in this case it might be worthwhile to upgrade to GXWorks2, you wouldnt need to 'rewrite' your code, simply just convert between the 2. 

If you want me to take a look at this- send me a PM- otherwise I see no alternative unfortunatley.

I've checked convert future, never heard about it before, seems interesting.

And backing to the start of the story - there is no way to make setting by sequence program for invertor communication? Its is not working even for 19200 baud (but working when im making setting download). I did it before for RS2 instruction and it works well.

Edited by SolidRio

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///Edited///

Stick to 19200 baud.

Also, what is the PLC version?

 

Edited by Veganic

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