AB7319-B download configuration.configuration not valid!

Anybus Support Anybus Gateways
#1

Hello,
we bought a AB7319-B and successfully configured it a few month ago. we now want to add a couple of more modbus channels to the module. I tried to download the configuration . But it gave me the error “Configuration not valid!”. Can you tell me how to correctly download the configuration so I can edit it?
from diagnostic window, everything is fine.
Thanks
Jon

#2

Are you selecting the correct Network Type (Modbus-TCP)?

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#3

you are right. I thought the download to device button is loading the configuration into computer but it turns out to be otherwise.
a follow up question, I am using Modbus addressing mode. I set data object’s data address in the input area(starting from 0x000). According to manual, we should use function code 4. so Modbus command should be 40001. but It doesn’t work. actually 30001 is working fine. is the manual correct?
thank you

#4

As you can see from the address map on page 28 of the User Manual, there is an offset of 0x200 (or 512) for Function code 3:

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If you want to read the Input area, you need to use Function Code 4 which is address 30001. Function Code 3 reads the Output area.