Anniyan_x
Member
HI there
currently i have input card, the configuration is as attached image View attachment 63917, i can connect drycontact based sensor/switch to it. basically a channel is activated when the channel is short to ground/common.. but now i need test the channel contact response by giving a 100ms voltless pulse(dry contact) meaning i need to short the common&DI channel for 100ms and check if the card can detect or not. im now not sure how to physical short it for 100ms, what type equipment i need to use, i have a pulse generator but that give a voltage based pulse, i do have a scope to.. but how to test dry contact...anybody have some ideas or any equipment that usualy can be used for this type of input testing.
wt rgds
anniyan
currently i have input card, the configuration is as attached image View attachment 63917, i can connect drycontact based sensor/switch to it. basically a channel is activated when the channel is short to ground/common.. but now i need test the channel contact response by giving a 100ms voltless pulse(dry contact) meaning i need to short the common&DI channel for 100ms and check if the card can detect or not. im now not sure how to physical short it for 100ms, what type equipment i need to use, i have a pulse generator but that give a voltage based pulse, i do have a scope to.. but how to test dry contact...anybody have some ideas or any equipment that usualy can be used for this type of input testing.
wt rgds
anniyan