https://www.se.com/no/no/faqs/FA301269/
TM251MESE : Modbus TCP IOscanner channel status can be wrong| Schneider Electric Norway
With TM251MESE firmware v4.0.4.14, when using Modbus TCP IO scanner with more than 16 channels, channels health bits may be wrong.Firmware v4.0.5.10 (available...
modbus tcp