Siemens SIMATIC S7 - 3.5 Pin Assignment; 3.6 Pin Assignment of Connecting Cables

SIEMENS AG PRODAVE S7
Toolbox for Data Link PGs/PCs to SIMATIC S7
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mb_setbit
The function mb_setbit sets a flag in the PLC to 1. It is not checked whether
the flag bit exists in the used PLC.
If there were no errors, the function supplies 0 as the return value otherwise an
error message which can be evaluated in accordance with the error table (see
error_message).
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See also mb_setbit, mb_bittest
C-Adapter
int mb_setbit (int mbno,int bitno);