IO_Rack

I'm at home now and do not have one in front of me to test, but if I remember correctly..... The "*" means that either the screen object is not physically large enough to display the number or.... The number is numerically incorrect for the data type selected in the NT20S. For instance... you are trying to display a hexidecimal value from the PLC and the NT is set for decimal. Another for instance... it is out of range. Are you seeing this "*" in your thumbwheel or a numeral display? As Bob states... I can't imagine seeing this in your thumbwheel.

Since you are a student and learning, you should explore other possible solutions. Thumbwheel Switches reference the same as Numeral Inputs only the data is written immediately. Good luck on your assignment.

Double click your numeral table object. This will bring up the numeral table properties dialog box. Under the 'Settings' tab you'll see 'Table Entry:'. This number refers to a line in your Numeral Table (in the NT20). Click the little box with the 3 dots. This displays your numeral table. Choose a table entry and type the PLC address you wish the numeral input to write to.

Look at Appendix A in the manual Jay has provided above.

Refering to my original post.... the key (Shown below) on the keyboard contains the info I instructed you to use only slightly different. 'Confirm input and focus remains at this field.' It appears the ENT key ('Confirm input and focus moves to next input field') is not available for the NT20S. In either case when the 'Confirm input' action is performed the data displayed in your numeral input will be written to the PLC.

I appologize for working backward but here you go..... To get rid of the system keyboard (the one shown in your picture): -Select the screen properties and deselect 'System Keypad'.

If my above post is unclear, it is because I have not worked with the NT20S in a while. We use the NT21 now. It has the same footprint, same price (for us) and a lot more function. Here is what we used to do for numeral input: -From the 'Window' menu, select 'Symbol Manager'. -Scroll down and select any keyboard you wish. -Right click your mouse on the selected keyboard you wish to use and select 'Copy'. -Close window and paste on your screen. You may recieve errors for replacement of symbol codes. I beleive these are just the codes for the labels on the touch switches. (I just click 'OK').

Yes, you need a 'Confirm Input' button. It appears to be missing in the picture above. Under touch switch 'Settings' tab, select 'Input Key-Control' with the 'Function:' drop down box. Then under 'Control Key:', select 'ENT - Confirm input and focus moves to next input field'.

Do you have a picture of the entire rack? This board looks familiar although I'm sure there are many European boards that look like that. We have a similar system here at our plant made in Germany. It's proprietary and they do not allow access to the code. If you are persistant I'm sure you could find a way to communicate with it. It may not be worth the time and effort to do that although it would make a fun hobby.

Here is an older version of the software the quick start guide refers to. It may make it easier for you to follow. Again you may have to register. If you are familiar with NT programming then you should note the screens in the NT2S are referenced in decimal, not hex.

Here is the software. You may have to register. Here is the quick start guide.

When I first started here the company was kinda new. Print outs and hand held programmers were delivered with the machines. This is what we used for troubleshooting until we got a FIT10. That still didn't do any good for the few S6's we had.

That must have been where we got the idea then. That's funny. We mostly work with exsiting programs which have been converted from LSS and CPT. In this case everything is compiled into one section.

Most of us here where I work have made a habbit of creating a section called "END". Obviously it is at the end of the program and END is the only instruction it contains.

Maybe you need a bigger hammer. Seriously, we've been using Keyence and Omron for many years. We have many on our machines for over 15 years without missing a lick. Unless they recieve physical damage, I don't believe I've ever seen one just go bad. Thanks for the info.

How do you reset the Max Scan Time? I've tried moving 0's to AR26 and it does not work. I can reset it from CX Programmer but I can't figure out how to do with an NT touch screen. I'm trying to do this to a C1000H through an NT21.

Glad to see others are still using these dinosaurs. I use the same method for forcing bits. Also if you want to toggle your bit then program a null output in multiple rungs then force it on / off.

I realize this is an old post. A co-worker an I experienced the same problem recently with a CPM2A-60. I edited my above post to add a step in the procedure that solved our problem. Even without adding new posts with questions this site makes a great reference. I was glad I could help myself.

I just tested this on my bench. I tried to download expansion instructions and got the same message box as you. (except mine in English). This is what I did: 1) Clear program memory. 2) Downloaded Settings. 3) Cycle Power on PLC. 4) Downloaded Expansion Instructions. 5) Downloaded Program. I performed these downloads one at a time in the order listed and got no error messages.

C Series Host Link Units It is in the MrPLC downloads section as well. Thanks Jay. The US Omron site apparently has had some trouble recently.

C Series Host Link Units This manual contains info on both Rack and CPU mount units.

I'm installing an NT21 high function touch screen on a C1000H via Host Link module. The program in the PLC is pretty huge and sucks up a lot of memory. My question is.... Is there anything fundamentally wrong with using LR memory area to control the PT? We have no plans to ever PC Link this PLC. I normally use DM area for PT control but I need to save as much as possible for my data collection. Thanks

MrPLC considers me an Expert now!

The only two concerns I thought of off the top of my head were.... LR area is designed to use with PC Link. That doesn't concern me as far as needing it, as stated above. And LR area is not data retentive. That may give me unexpected results at power up. (It wouldn't be unexpected though if I were expecting it.... Right?)

CQM1-AD042 What Omron's web site doesn't have, Mr PLC does!