User manual

IEC61131 User and Reference Manual
April 22, 2008
599
Protected Bit Write
The Protected Bit Write function sets or resets individual bits within limited areas of the I/O
database. Access to the I/O database is limited to the protected address range.
Bits are accessed one byte at a time and may be written up to the maximum number of
bytes. The write may start at any byte address, provided the entire block is within the
protected address range.