Ex p Control Unit
SIEMENS Set
Commissioning
Rev. 0
01-37A2-7D0004_SIEMENS_Manual_Exp-Control-Unit_20220216_0_en.docx
Page 59 of 80
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“K2 / K3 / K4“ relay setting
ATTENTION
ATTENTION WHEN SWITCHING PARAMETER K2 WITH K1
When using relay K2 as enable relay (parameter K1), further selected
parameters will not be used because relay K2 is seen as enable relay in this
moment (SIL relevant)
Assign messages to the signal relays K3 and K4
The switching points can be assigned
to the relays K2, K3 and K4 in the
“Extended / Relay“ menu; multiple
selection is possible.
Where messages have a “minus
sign“, this shows that the relay is
activated if the value falls short.
Where messages have a “plus sign“,
this shows the relay is activated if the
value is exceeded.
Procedure:
Connect computer with Ex p control unit
Activate programming switch
Log in to the WEB interface with the user level
Select Extended / Relay menu
In the “of the respective relay“ column, activate the specific message/s
by clicking on the corresponding button.
E.g. click on the “K1“ button. The button alters from to
Confirm pop-up window with altered value
Deactivate programming switch
