Why did wind sensor canot received the data via modbus serial port.
-
as show in the attachment . I use other device via modbus ip to received data .
and display mango and modbus scan software as below.
Attachment: download link
-
now I modify the connection to rs 485 .
and I test againdisplay "argument type mismatch"
many data 32 bit float.and mango have no this option.
Attachment: download link
-
-
in wind sensor side ,have two type:rs422 or rs485,
before the connection always is rs 422, and I change a adapter to rs485 to test to see have any changing.
-
and I test serval times.
and display"Exception from modbus master:CRC mismatch:given=1536,calc=8432"
Attachment: download link
-
as your attachment, the modscan32 don't receive any value?don't you know what's mean valid slave responses:0?
-
if in mango,
What do this mean "nd I test serval times.and display"Exception from modbus master:CRC mismatch:given=1536,calc=8432"
" -
This means that you got a response but the CRC did not match so the message was discarded.
A CRC of 1536 was given but the calculated CRC was 8432. This indicated that the message might have been corrupted.
If you don't know what a CRC is then you should do some research on the Modbus spec and will probably clear that up.
Joel.
-
yes,I change to wind sensor adapter from rs 422 to rs485 adapter,and display above the message."exception from modbus master:CRC mismatch:given=1536,calc=8432"
-
How to setting can display normal value.
will not display"Exception from modbus master:CRC mismatch:given=1536,calc=8432"
BR
Attachment: download link
-
I don't think that's a question that anyone here can answer. It could be noise on your network or something else.
Joel.