Added disconnect handling to sinqMotor

src/sinqAxis.cpp

@@ -245,6 +245,10 @@ asynStatus sinqAxis::forcedPoll(bool *moving) {
     // Clear the communication
     setAxisParamChecked(this, motorStatusCommsError, false);
 
+    // Assume the motor is initially connected. During the poll, this value will
+    // be set to false if the motor is not connected.
+    setAxisParamChecked(this, motorConnected, true);
+
     /*
     The poll function is just a wrapper around doPoll and handles mainly the
     callParamCallbacks() function. This wrapper is used to make sure
@@ -252,6 +256,11 @@ asynStatus sinqAxis::forcedPoll(bool *moving) {
     */
     poll_status = doPoll(moving);
 
+    // Motor is not connected
+    if (poll_status == asynDisconnected) {
+        setAxisParamChecked(this, motorConnected, false);
+    }
+
     /*
     If the poll did not succeed OR if an error message is waiting, something
     went wrong and the motor has a status problem. Otherwise, delete the error