Eaton easyE4 Manual page 207

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Markers can be used to access data as follows (with the corresponding address

Avoid accidental double marker assignments.

Otherwise you might address the 512 bit markers sim-

ultaneously via the first 64 marker bytes, 32 marker words or

16 marker double words and thus produce uncontrollable

states. When write accesses are made successively within an

MD, such as to MD1, MW2, MB4 or M32, the last write oper-

ation is retained.

Observing the following wiring rules will prevent the double assignment of

marker bits.

For easyE4, use:

Marker bytes, starting at MB13

Marker words, starting at MW07

Marker double words, starting at MD04

The following operand tables show how this works.

easyE4 10/19 MN050009 EN www.eaton.com

5. Programming on the device

5.7 Using operands in a program

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