4.) Transmitters can now be LEARNED: By pressing one of the rockers of a PTM radio
switch or by pressing the learn button inside the back cover of the STM250 magnet
contact, the transmitter is assigned to the switching receiver, and the relay stops
Toggling for about 4 seconds. The relay status confirms that the transmitter has been
saved (contact remains on for 4seconds ) or a previously learned transmitter is deleted
(contact 4s off).
5.) As soon as the Toggling of the relays resumes, additional transmitters can be LEARNED
or deleted. If the RCM255’s memory is full (30 EnOcean PTM 250 radio switches or 2
EnOcean STM 250 radio window contacts) the receiver terminates Programming mode
and returns to operating mode during an attempt to enter another transmitter. In this
case at least one ID has to be deleted before LEARNING a new transmitter.
6.) To exit Programming mode, re-press the LRN button, or after 30 seconds of no activity
the receiver automatically exits Programming mode.
2.5 Selective Deleting
A transmitter that has been LEARNED can be selectively deleted. The Programming mode is
activated by pressing the LRN button. Then actuate the rocker or learn button of a previously
learned transmitter, it is now UNLEARNED. Exit Programming mode by repressing the LRN
button.
2.6 Clear All
If the CLR key is pressed and held for approx. 2 seconds the memory is deleted completely
(condition upon delivery). Then the RCM255 receiver enters Programming mode which is
signalled by the Toggling output relays. Programming mode is left manually by pressing the
LRN button.
©EnOcean GmbH, A. Anders
Page 12 of 18
RCM 255 User Manual V1.12
