var topicIn = "wb-mr3_36/Input 1 counter";
var topicBlock = "wb-mr3_36/Input 2";
var outRelay = "wb-mr3_36/K1";
defineRule(topicIn + '-trigger', {
whenChanged: topicIn,
then: function(newValue, device, control) {
if (topicBlock){
dev[outRelay] = !dev[outRelay]
}
}
});