FX3U as Modbus slave

[jo2ham 0]

Hi I want to use FX3U as Modbus slave. I am using 485-ADP MB and successfully communicated as slave device. Now my master is able to access all my registers. But I want my Master to access only D1000 to D1100 registers. How can I do this? Please help me out. Thank You Joshua

[kaare_t 155]

In the FX Series Modbus Communication Edition manual (JY997D26201), in section 9.4 ("User defined MODBUS Deveice Address Assignment) you can read all about limiting the access areas from the default (all access) settings. You need a little logic to make it work, but just follow the examples in the manual...

[jo2ham 0]

Thank you for the reply. Let me try and give the feedback

[jo2ham 0]

I worked as per the example in the manual. But it's not working for me. If any one have any worked out example please give me. Thank You Joshua

[kaare_t 155]

Could you post what you have done so far? It's a bit hard to help you with your code without seeing it... Pictures of all the code would be nice.

[PL 0]

On 18.3.2015 at 8:40 PM, kaare_t said:

Could you post what you have done so far? It's a bit hard to help you with your code without seeing it... Pictures of all the code would be nice.

Hello, can you please send the working example or picture also to me?