As I read it, if you leave the the “Relay Control” switch for a channel “on”, and you apply an appropriate voltage (or link to the +5) on the corresponding input, then the relay for that channel will switch. But the manual isn’t very clear, and I’ve no idea how the software knows if a channel is being used for an input or an output :dontknow:
[quote]The 8-Channel I/O supports eight channels of input or output. By default all eight output relays are enabled. If a channel is used for input the output relay can be disabled by sliding the appropriately numbered relay control DIP switch (marked