Modbus: Unable to get Lynx Fuseblown Alarm

Hi ,

I trying to simulate a fuseblown on Lynx Smart BMS by removing one of the Fuse. The GX shows fuseblown fault but when i read data from Modbus address : 278 (Fuse blown alarm) and 1283 (ErrorCode) , these 2 addresses return 0. Hope to get some expert help .

Thank You