ecoc measurements

Classes/05_Lab/OptAtten.m

@@ -53,7 +53,29 @@ classdef OptAtten < handle
 
             try
                 %connect to device
-                v = visadev('TCPIP::134.245.243.248::INSTR');
+                ipAddress = 'TCPIP::134.245.243.248::INSTR';
+                maxRetries = 5;
+                pauseTime = 2; % seconds between retries
+                
+                v = [];
+                success = false;
+                
+                for attempt = 1:maxRetries
+                    try
+                        v = visadev(ipAddress);
+                        success = true;
+                     
+                        break; % Exit loop if successful
+                    catch ME
+                        fprintf('Connection attempt %d failed: %s\n', attempt, ME.message);
+                        pause(pauseTime);
+                    end
+                end
+                
+                if ~success
+                    error(' Could not connect to device after %d attempts.', maxRetries);
+                end
+
 
                 debug = 0;
                 if debug
@@ -315,7 +337,8 @@ classdef OptAtten < handle
             p3 = obj.power_state(3);
             p4 = obj.power_state(4);
 
-            if options.silent == 0
+            delete(v);
+            if options.silent ~= 0
                 fprintf("\n CH1: %.2f dB | CH2: %.2f dB | CH3: %.2f dB | CH4: %.2f dB\n \n",p1, p2, p3, p4);
             end
         end