I need to give a digital output from wsn node, given below is the block diagram of the same, I tried to put both an indicator(true/false) and constant control to drive the output, but I din't get any(as you can see in the front panel attached the indicator's green light is turned off though I set the control to true). Is there any mistake in configuring it? Also, I can't change the properties of DIO0. How can I change a Digital I/O channel from output to input and viceversa
You can't change the properties of the channel because it is essentially a system channel, not a user channel. It is linked to a physical line.
It looks like you are using a 3202?
How long did you wait for the digital line to toggle? Depending on the update rate you set for the node (right-click node, properties), it could take several seconds.