Allen- Bradley MicroLogix 1000 Serial USB connection set up

[thug_]

Hi,

I have Allen-Bradley MicroLogix 1000 PLC, connected to my notebook with serial usb cabl on COM3. I downloaded AdvancedHMI, I created new project and add dlls from Advanced HMI.

I tried to use SerialDF1forSLCMicroCom driver and I tried to execute following code through my application

                plc.ComPort = "COM3";

                plc.PollRateOverride = 100;

                string plcRead = plc.Read("N7:0") // Value is 500

                txt.Text = plcRead;

but when I start application I am not getting any results, any ideas what I am doing wrong ? In PLC value is 500.

Thanks.

[dmroeder]

I think the values are returned as a string. Try

  txt.Text = plc.Read("N7:0")

[Archie]

If you add a BasicLabel to the form and set PLCAdressValue to N7:0, will it show the value when you run the application?

[thug_]

Thanks but didn't work. This is the error I am getting

[thug_]

I tried adding Basic Label to MainForm.vb, but still not displaying value. It says No Response from PLC ?

[Godra]

Is your RSLinx shutdown?

[thug_]

RSLinx is running, should I turn off ?

[thug_]

Ahhhh I turned off, now it's working. Thanks guys.

[bachphi]

It's a good habit if creating any serial driver in RSLINX, set it to manual startup.

and C sharp code need to end with ;