Invalid DM address?

[robh]

Probably another silly question but I haven't found an answer in my books yet. I am using a NS10 screen and a C200H PLC. I am having trouble with a numeral display and input. I want to write to the PLC DM02128. Everything verifies and downloads fine. After downloading and restarting the terminal, and I go to the screen that has the numeral display and input, the terminal gives me a pop up that says there is an addressing error. If I change the address to DM00000, download again it works fine. What is the reason 02128 will not work? Is there a max address that the NS will recognize? I have copied other numeral display and inputs that are working correctly and changed only the address with no luck. Still makes that loud error beep . Thanks, Rob

[gtsuport]

Can you provide the complete part number for the plc? Should be C200H-CPUxx

[robh]

It is a C200HS CPU21 Thanks

[gtsuport]

That should be a valid address. I would try it without the leading zero. All C200H/C200HS DM addresses were 4 digits. Example DM2128. Hope this helps.

[robh]

CX-Designer automatically adds the leading zeros for me.

[Jay Anthony]

Make sure that this a C200HS PLC. C200H was limited to DM0000-DM1999. Also, are you using Hostlink or NT Link protocol?

[robh]

It is a C200HS-CPU21-E PLC and I am using Hostlink. NS is connected to a LNK201 module on the PLC rack. The PLC is in service and working correctly. I am replacing an old TCP touch screen with a NS10-TV00B-V2. According to my fancy manual, DM areas 0000-0999 and 2000-5999 are normal DM areas.

[robh]

I think I figured it out. I am slightly less dense than the desk I am sitting at. I am using my spare processor in my office. It has a current running copy of the plc program in it but is missing some remote racks and cards. When I plug the screen into the rack that is on the machine it works fine and displays the correct information. Thanks for the ideas and the help.

[lostcontrol]

Still does not explain why it did not work on your desk CPU... This would be a valuable answer to find.

[robh]

Yes it would. I am a still learning how to speak Omron, but I hope to figure it out as I think it will show up again in my adventures.