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+--- Thread: Modbus logging (/showthread.php?tid=3973)
Modbus logging - dave.bolas@se.com - 05.04.2022
Hi,
I am reading the active energy delivered from an ION7650 via Modus TCP. I can see the value correctly decoded in the object view, but when I look at the object log view, the Decoded Data, Data Type and Object Data are all showing '--' (The data type in the Object view is 4 byte floating point.)
Any suggestions as to what I am doing wrong?
Regards
Dave
RE: Modbus logging - Daniel - 05.04.2022
Can you share a screenshot of the value in object tab and in the Object log tab? Also edit the object and send screen too.
RE: Modbus logging - dave.bolas@se.com - 05.04.2022
Screenshots added. I'm on Teamviewer if you want to drive?
RE: Modbus logging - Daniel - 05.04.2022
This is read telegram. Set the pool interval to 0. Modbus reading is set in modbus tab under device settings.
RE: Modbus logging - dave.bolas@se.com - 05.04.2022
Hi Daniel,
Sorry, I don't understand. Please can you explain?
Regards
Dave
RE: Modbus logging - Daniel - 05.04.2022
Go to objects, edit object 5/1/11 and 5/0/10 and set pool interval to 0
RE: Modbus logging - dave.bolas@se.com - 05.04.2022
Done. Now its not logging at all.
RE: Modbus logging - admin - 05.04.2022
Check Error log in the Modbus tab.
RE: Modbus logging - dave.bolas@se.com - 05.04.2022
No errors. But despite the Modbus "Value send delta" being set to 0, it only seems to log when the raw (pre-scaled) value changes by 1. So I get logs at 173,000 then 174,000 etc
RE: Modbus logging - admin - 05.04.2022
Even if delta is set to 0 new value is sent only when it differs from the previously sent value. It's possible that the value resolution for this register is 1.
RE: Modbus logging - dave.bolas@se.com - 05.04.2022
Brilliant. Thanks.