Marker Memory - Hitachi MICRO-EHV+ Applications Manual

3.6.2

Marker memory

Normally users do not have to take care about internal address of data memory however, if needed, the marker
memory is useful. The address of marker memory is %M.
For example, DWORD data dwTest, WORD data wTest_H and wTest_L are declared in the
address %MD10, %MW20 and %MW21. Then high word and low word can be accessed separately with
using %M addresses. The relation between each data types are same as page 3-14. Just replace "Q" with "M". The
marker memory does not support RETAIN nor PERSISTENT flags.
Variable declaration
Login display
The max. size of marker memory is 16KB. Supported address range is shown below.
Data type
BOOL
BYTE
WORD
DWORD
LWORD
Address range
%MX0.0 to %MX16383.7
%MB0 to %MB16383
%MW0 to %MW8191
%MD0 to %MD4095
%ML0 to %ML2047
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Chapter 3 Programming