Encode Convert

Inputs/Outputs Operands Data Types
IN VW, T, C, IW, QW, MW, SMW, AC, LW, AIW, Constant, *VD, *AC, SW, *LD WORD
OUT VB, IB, QB, MB, SMB, LB, AC, *VD, *AC, SB, *LD BYTE

Memory Ranges ENO Errors Instruction Support for S7-200 CPUs SIMATIC/International Mnemonics
The Encode instruction writes the bit number of the least significant bit set of the input word (IN) into the least significant "nibble" (4 bits) of the output byte (OUT).

Error Conditions that Set ENO = 0:

0006 (indirect address), SM4.3 (run-time)