cHud

!st of all i do not know Concept at all. But can you open other projects? This error looks to me like a concept error rather than the project file...There are default paths normally set for software to open certain files and if that path or file doesnt exist you get errors similar to this

Will your string have values in on the plc or do you need to type in messages on Vijeo designer?

Sorry the above method can only give 255 messages in one text resource. Let me check for another solution

Choose a message display block. As shown in picture. You need to create a text and colour resource (under resources)  Then in the message display properties you need to select the colour and text resource you created and use the integer value as your variable in the message display block. No arrays needed. Just type your messages in the text resource next to the value of the integer

somachine basic.... you can even convert the twido project files to somachine basic files.....somachine basic is also free

plc7-3 cannot work in xp to my understanding. Only is OS2

I havent used a nor card but with all comms cards you need to set it up in unity pro... not on the webpage of the device

According to hwat i know this is not possible. The closest thing you will get to a slider is using a horizontal,vertical or circular selector switch with certain amount of steps in it that will increment or decrement  the value on touch

like this

not sure if it will work in vdos. Need to have windows95 or 98 installed on a virtual machine the use that dos

I normally write the inputs and outputs to %MW or %M. Then you shouldnt have a problem. Not all modbus softwares allow all the modbus functions. But most should allow reading x3 and x4 which will be %mw and %m

I Also dont know Siemens. What is an OB?  

Well with usb you have to wait for the driver to load after plugging in cable. It takes a few seconds. You should see a icon popup on the bottom right of windows when usb driver is ready

Have never compared with time values but shouldnt your if say if t_delay<=t#0s then t_delay:=t#3s    

I use Weidmuller Remote IO. Havent had any issues so far.  (Called U-remote) Have also seen a lot of the Turck BL20 in OEM machine which also havent given any issues in a long time

Refer to my post. You need to mount the iso file on a virtual drive. Otherwise it wont work

Would use a m340 plc with a NOC card (for the EIP portion) . Hmi you can use HMIstu (small and cheap) or if you need bigger screens then GTO series from Schneider

You will have to read up on serial communication (ascii). Check the somachine pdf manuals for serial communication. I have done this successfully a few years back. Will find program and post screenshots 

https://www.schneider-electric.us/en/download/document/1755863/  

Here is a link to the manual for this   https://download.schneider-electric.com/files?p_enDocType=User+guide&p_File_Id=7668936673&p_File_Name=EIO0000002542.00.pdf&p_Reference=EIO0000002542

How long is the string that you are using?  Can you maybe give us the actual string value

Hi Tony What driver are you using?I suspect its modbus. Open the device (plc) comms settings in the IO manager  in Vijeo Designer. Change the double word order to the other option

We often supply cabinets where our supply is prone for spikes. Using a control transformer reduces the damage that can be caused to the control side ( power supply or coil etc side). That is our main reason for installing them. If history is a yard stick then I wouldnt go without them in a 3 phase to single phase or 24vdc control cabinet.  Even when supplied by single phase. Might be an overkill but doing things proper results in less problems. Often don't know the state of customers electical supply until there is a fault in your cabinet

try and just use the send function block and once done the receive....just a thought. Also you can convert dec to hex, hex to string etc just as you like in the plc. Its all binary in the end. Length of message might be an issue but unless knowing what device or model you are using I cannot be sure.  Ps. the physical interface is the most important. if that isnt right you will not get any communication. 

Well the example is wrong. People are asking for solutions to their problems not for an "example" that will give them extra errors......OMG