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LD Language Elements
SR2MAN01 11/2007 93
Auxiliary Relays
Description Auxiliary relays marked M behave in exactly the same way as Q Discrete outputs
(see Discrete (DISCR) Outputs, p. 98), but do not have an electrical output contact.
They can be used as internal variables.
There are 31, numbered from 1 to 9 and from A to Y except for letters I, M, O.
All auxiliary relays can be used, in the program, indifferently either as a coil or
contact. They can be used to latch a state to be used in the form of the associated
contact.