Signal range of data type real
I have two questions.
I have had a problem reading REAL numbers through ModBus and always get the sem error [-5] in the MBTCPRead block. Does anyone know what this error stands for because it is not in the manual? When I swich over to read DINT I have no problems.
I'm trying to read from ABB ANR96 Measuring station and since I'm not able to read REAL I wanted to read the 64bit INT and convert to REAL but then I found out I could not write value higher than 2147483147 (MaxDInt). Why can I not write higher value in REAL variable that I thought was in IEEE-754 format that should have maximum representable IEEE 754 floating-point value (2 − 2^ (-23) ) × 2^ (127) ≈ 3.402823 × 10^ (38) ?
Thanks for quick answers,
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