Who can help with available modbus register via SigenStor EC20 TP / Sigen EVAC 11 4G. Additionally I need to know if these registers are available with device address 1, 247 or any other device number. In general the modbus communication is running except values from the EVAC device.
Not sure how the August 2026 ModBus updates have changed things in your situation, but the Protocol Wizard may be right up your alley for experimenting and checking port responses without a lot of reboots.