IN AC31GRAPH Software of ABB PLC: MULTIPLICATION BY 2 TO THE POWER OF N is available. (page 185:https://katalog.vaeprosys.cz/assets/doc/106 ABB AC31 Graf Software.pdf). Example 3 is Input value E1 = -32612 (8008H) .
Exponent N = -3 -> 3 * Right shift . Here result after 3 shifts is shown as : 1.1.1.1 0.0.0.0 0.0.0.0 0.0.0.1 (LSB). I aggree that Bit 15 is =1 (for negative sign). Why Bit 14 and Bit 13 came as 1?

 

Why Bit 14 and Bit 13 came as 1? It is very to understand as per OEM manual...it is about 3 right shift so bit 15 stay at 1 and from bit 15 to bit12 value become 1 instead of O
Easy Easy

 

Got it. Thank you.