Skip to Content

Register Login

Industry Online Support

Technical Forum

Navigation

How to use LOGO's cursor keys?

Created by: BrOs at: 11/17/2008 11:18 AM (12 Replies)

Rating (0)

Thanks 0

Result pages:: |; 1 | 2; |

13 Entries

Entries per page: 10 | all

11/17/2008 11:18 AM	Rate (0)
BrOs Posts: 4 Rating: (0)	Hello I want to to adjust counter by pressingLOGO's cursor key, but adjusting was very difficoult and slow, because when I pressed ESC+cursor key the command was not always detected, so Ihad to usebutton connectedto digital input instead of cursor key. Does somebody know, how to use cursor keys, that keys will work like button on ordinary input. I want that every time, when I press ESC+cursor key, LOGO will accept this like that I use button on digital input. Best Regards
BrOs Posts: 4 Rating: (0)
Suggestion To thank Quote Answer

11/17/2008 6:33 PM	Rate (0)
CorbyLee Posts: 11 Rating: (1)	Hi, Please find attached screen dump of one of my applications which uses the cursor keys to increment/decrement two counters which in turn are used toadjust the setpoint of two timers. These timers are then used to set an output energsied for shotdose duration time after interval duration time has elapsed (i.e. act as an adjustablerecycle timer). Hopefully this clarifies use of the cursor keys. Best regards, Corby Attachment Using cursor keys to adjust counter.pdf (3657 Downloads)
CorbyLee Posts: 11 Rating: (1)
Suggestion To thank Quote Answer

11/18/2008 7:52 AM	Rate (0)
BrOs Posts: 4 Rating: (0)	Thank you for answer, but my problem is somwhere else. I already know, how to program kursor keys. Your aplication with cursor keys is working well only in simulation mode. Try to use kursor keys on LOGO, than you will see, that adjusting counter with cursor keyswill be very difficoult.
BrOs Posts: 4 Rating: (0)
Suggestion To thank Quote Answer

11/18/2008 10:17 AM	Rate (0)
Fux Posts: 661 Rating: (123)	Try not to press ESC + C at the same time but first ESC and hold it. Then the C.
Fux Posts: 661 Rating: (123)
Suggestion To thank Quote Answer

11/19/2008 4:52 PM	Rate (0)
CorbyLee Posts: 11 Rating: (1)	Hi, Yes, Fux is correct. Pressing and holding the ESC key and then pressing the required cursor key is correct way to do this. If you try and press the two keys simultaneously then sometimes the two keys are correctly registered, other times they are not. You should never have a problem is you press and hold ESC key first. Best regards, Corby
CorbyLee Posts: 11 Rating: (1)
Suggestion To thank Quote Answer

11/24/2008 11:14 PM	Rate (0)
BrOs Posts: 4 Rating: (0)	Hello CorbyLee Thank you for answer, but have you ever try this? Please try to use kursor key and you will see my problem. Best Regards BrOs
BrOs Posts: 4 Rating: (0)
Suggestion To thank Quote Answer

11/25/2008 9:44 AM	Rate (0)
Fux Posts: 661 Rating: (123)	Hello BrOs, of coursei tried thisvery often. Perhaps the only solution for you is, if you don´t want to use a digital input and you have problems with pressing the cursor keys correctly, that you use a LOGO! 0BA6 with external display. There you have 4 function keys (F1-F4) which can be used like normal digital inputs. There no ESC button is necessary. Of course, the cursor keys C1-C4 are not as easy to use like wired pushbuttons are. I also have the problem, that in ~2 of 10 times it will be not detected, but for me it´s ok. I use them only for seldom actions like reset a hours counter. About the speed to make thecursor key count up/down: look at Betel´s examples, there are solutions to make a counter count single digits or , if pressed 2 seconds, it counts faster via a pulse generator. And please give us your program to have a look at it. Perhaps there is a mistake . So far you only told us that it don´t work.......
Fux Posts: 661 Rating: (123)
Suggestion To thank Quote Answer

11/25/2008 1:01 PM	Rate (0)
CorbyLee Posts: 11 Rating: (1)	The application I posted is actually one being used by customer and I've had no complaints from him! Just loaded it up onto a 5th generation 12/24RC and it works fine. Very occasionally it misses a keypress if you press the cursor keys very quickly - guess the scan time isn't quick enough to pick up a very short keypress but then you are dealing with what is essentiallyan all in one PLC and HMI costing around 100 Euros. If you run this application on the default message screen which shows the setpoint values you are trying to adjust and hold the cursor key down until you see the setpoint value change it never misses a key press. Best regards, Corby
CorbyLee Posts: 11 Rating: (1)
Suggestion To thank Quote Answer

11/25/2008 5:50 PM	Rate (0)
BrOs Posts: 4 Rating: (0)	Hello Fux, Here is a part of my program. Input I2 is instead of pulse at the midnight. With cursor keys I want to adjust START and STOP time, when output Q1 have to be active. Because of easy testing I put minutes instead of hours and seconds instead of minutes. Best Regards BrOs Attachment Timer_01.zip (1419 Downloads)
BrOs Posts: 4 Rating: (0)
Suggestion To thank Quote Answer

12/1/2008 5:36 PM	Rate (0)
CorbyLee Posts: 11 Rating: (1)	Hi, Been unable to replicate your problem with cursor key response with your program when testing on mytest unit (5th generation12/24RC so had to remove the analogue maths function blocksfrom your program) as long as you are very firm when pressing the rubber keys and have held down the ESC key before pressing and holding the cursor key until input is seen by incrementing the value on the message display. I wonder whether your problem was with the actual hardware used, maybe a sticky contact on a cursor key? Best regards, Corby
CorbyLee Posts: 11 Rating: (1)
Suggestion To thank Quote Answer

|

Share this page:

Share this page on...

Related topics by keywords:

Follow us on