Looking for a freelance programmer

[gsoliman]

I am planning to retrofit/upgrade the PLC of a 20 years old water deionizer control panel. The PLC is composed of a 9-slots DL205 with D2-240CPU, D2-08NA-1 input discrete modules, D2-08TR output discrete modules with Direct View DV-1000 display. The CPU and display unit are already defective. I believed the D2-240CPU and DV-1000 are no longer in production or are obsolete already. I was told the D2-250-1 can be used in place of the 240CPU. As for the display, the C-more Micro HMI are one of my option.

I have a very little experience with PLC programming. I just started few months ago and still struggling on learning but know how to navigate and work the ladder. I know how to download/upload a program to/from a PLC. My problem is how to identify things related to the display and edit/modify them to make them work with a C-more display.

I am looking for a freelance programmer that can help me resolve this problem. I am willing to compensate the person who could help me resolve this problem. If you think you have the skill needed for this work, please drop me a message.

[Garyhlucas]

Do you have the source file for the PLC?  If so replacing the 240 with a 250 or 260 is really easy.  The DV1000 wasn't programmable, the code to drive it is in the PLC.  I no longer have the software for the DL205 stuff as I sold my last 205 along with the software.  If you don't have the source code file the task gets a whole lot more difficult!

[gsoliman]

Hi Gary,

Thank you for your reply.

I have licensed copy of DirectSOFT 5 and yes, I do have the source file. Late yesterday I was able to get hold of a D2-250-1 CPU and was able to upload the source file in it using DirectSOFT 5 software and my trainer module and as you said it, it was really easy.

Now for the display, is a C-more EA3-S3ML-R display a good replacement for DV-1000? Will it also be simply plug it and play it or will it require programming?

[Garyhlucas]

The C-More is way easier to work with than the DV-1000 but it must be programmed which is actually very easy. It is much more powerful too. C-More uses tags for memory locations in the PLC then you place objects like buttons, indicators, and text on as many screens as you need.

[gsoliman]

How about the source file, does it need revision to work with a C-more display?

[Garyhlucas]

The code to drive the DV-1000 will still be there but won't interfere, and unless you know what you are doing I wouldn't mess with it right now.  You will need to identify the memory addresses used to enter data.  The C-More basically talks to the PLC to request the data in the various memory locations and can write new data in.  You could even have more than one C-More connected if you were using Ethernet.