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Service button
HMI concept
Button pressure
Indication / success
Failure
Status
Warning!
Terminal cover
Siemens
Building Technologies
The device carries out the following commands from the service button:
Button pressure
Action
• Switch on/off programming mode
Short
(< 0.5 s)
• Do not indicate connection test result
• No action
(0.5...2.s)
• Start connection test
Medium
(2...20 s)
• Start reset to factory settings
Long
(> 20 s)
Operation and display interaction:
Short
Programming mode
*) Indication time = 60 s; can be ended by briefly pressing the button.
Only trained electrical installation staff may press the service button when the
terminal cover is removed!
Adjacent terminal may be powered.
The device is supplied without terminal covers protecting the connection terminals
against touch and soiling. The service LED is visible also with installed terminal
cover. The service button is pressed using a tool. Remove the cable entry glands
to connect cables to the room automation station.
RXM21.1 - PL-Link IO Block
Medium
Indication time *)
Connection test
Result
Remove terminal cover
Long
Reset
Factory settings
3 / 14
CM2N3835en_01
07 Mar 2012
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