We have Honeywell TPS System, using HPMM with Serial Interface (SI IOP). I am reading data over 485 Modbus RTU. I am trying to get floating point data, using 30000 range it shows FOR 37 mg/L a value of 19197 which has to be converted to FLOAT to show 37 mg/L which I need to display. If I use any other series i.e. 20000, 70000, 80000 I get error EX - 3.