defcon.klaxon
Lifetime Supporting Member
Hi all,
A client is asking if I can move a motion sensor from an existing alarm dialer to a PLC discrete input. Looking up the datasheet, it says that the relay output for the alarm is "Form A - Normally Closed". But doesn't the very definition of Form A normally open? Am I missing something?
http://www.ntsupply.com/files/products/ge_sentrol_6000_series.pdf
A client is asking if I can move a motion sensor from an existing alarm dialer to a PLC discrete input. Looking up the datasheet, it says that the relay output for the alarm is "Form A - Normally Closed". But doesn't the very definition of Form A normally open? Am I missing something?
http://www.ntsupply.com/files/products/ge_sentrol_6000_series.pdf