Cam

To clarify what is the communication link between the PLC and Scanner? Ethernet or RS 232? I've done lots of barcode scanners using RS232 and the protocol scan FB, I've never tried one on Ethernet before. Does the scanner send the data to a specific IP address or is it just a broadcast on the network? I suggest taking a look at the Ethernet Communication in the Help file review it and look at the TCP RAW and UDP RAW function blocks(Communications->Ethernet-> TCP RAW Send/Receive or UDP RAW Send/Receive) as these would be the FB's used to get data into the PLC.

Angelo, there are four different options for downloading to the PLC. If you do not pick Burn "Upload Project" then it is impossible to retrieve a copy of the program from the PLC.

In regards to the Ethernet communication failing. Flex beat me to it but one thing he didn't mention: If your in a network disconnect the PLC and ping the IP address to double check that there is no duplicate. I've had this before and it prevented me from communicating with the PLC as it wasn't the PLC responding but the PC with the same IP address. I did double check this morning as well. If the upload project hasn't been burned to the PLC you will get a different error message. So this is a communication issue between the V570 and your PC.

I believe if there is not an upload burned you get a different error message not the standard no communication message.

Hi Ahmed, What are you looking to do which connected to the PLC? We have a web demo with the basic webserver set up in a V350 which can be accessed at 67.70.212.68.

Have you tried putting the PLC in to stop mode then communicating with it?

Which set of inputs did you connect to ? Sensor 0 would use inputs 9 and 10 in reference to CM on input 11 Sensor 1 would use inputs 7 and 8 in reference to CM on input 11 I've set this wrong before thinking 7 and 8 are 0 and 9 and 10 were 1. Also double check your jumper settings http://unitronicsplc.com/wp-content/uploads/2015/12/SM35_43_70_RA22_IG_2_16.pdf

Check your wiring against the motor driver manual, I believe that O3 should connect to the PWM input on the motor driver.

Glad to see I'm not the only one to have done this. The best solution is to uninstall and then reinstall Visilogic, however I did find a work around when I had done this this is not a recommended fix just something I found that works. I run multiple versions of Visilogic on my PC and swap using Version Swapper. In your Unitronics directory under the Main file folder there is a layout folder, inside it is a file User Layout.lyt . I renamed the *.lyt file in the directory and then copied the layout file from one version in which the tool bar was visible to the one in which I had lost it, when I re-opened Visilogic my main tool bar was back.

You can add a increment MI to the subroutine in a new net to verify that it is being called and executed. When you go in to online mode it should increment everytime the subroutine is called. Also use the find MB feature to verify that you aren't accidentally resetting the coils somewhere else in the project.

I'd use a timer set for the frequency that you want to log at as you mentioned. As for the amount of free space on the card SDW 59 shows the amount of free space left on the card with some math you can display it in MB or GB.

What error do you get Crazi? Did you try putting the PLC in stop mode and then communicating? Typically if the PLC is password protected you'll get a prompt to enter the password before the upload starts, the program being password protected won't stop you from going online and viewing the controller or getting the hardware information.

Joe does it take rebooting the PLC or would simply re-initializing the ethernet port take care of this? Could you set up a timer so that if SDW 61 doesn't increment for a period of time while your status is 23, the timer output will re-init your ethernet card.

Can you please clarify. Is it the menu where you select between info mode and calibration mode that you can't get past or do you actually get the calibration boxes that you have to tap on in order to calibrate the screen?

What about DataExport running on a PC? It would let you either call the V230 on a schedule you set, or you can have the PLC call when it's table reaches a certain amount of rows(or on another trigger). If the PC has an email program it can email you a copy of the table and also save it locally. Then set a bit to clear the table.

SB136 is the data receive bit for COM2(as noted by DaveE thats the one in your pic) If your using the Protocol Scan FB there is a MB(user selected) that sets when it receives a valid message. Have you tried using this MB as the trigger for the count?