Warning before items exit [PickMaster 3]

PickMaster
1

I am programming a line and the PLC programmer came to me with a need regarding the Start/Stop conveyor function of Pickmaster.

We use the Start/Stop signal on an infeed conveyor (pick) and outfeed conveyor (place). We have other equipements on the line and they cannot stop easily. We will use the start/stop signal of the conveyor but we would like to have also other signals if the targets (pick or place) are close to the exit (ref. Pickmaster User’s Guide p.82). We would like to use this signal to speed down the conveyors before to stop them.

Do you have any idea how can I get this informations on items in the Pick or Place Queue?

Thanks for your help,

2

Nick,

There are unfortunately no signals such as the ones you ask about. However, you might be able to use the GetQueueLevel function.

Look at this thread and the example by Fabrice on how to use it: http://forums.robotstudio.com/forum_posts.asp?T ID=933&PN=1

The GetQueueLevel function is described in the User’s Guide.

BR, Erik

3

EriK,

The GetQueueLevel will only give me the numer of item if the Queue…not the positions. I will not be able to know if they comming close to the exit…

Thanks for your help

4

Hello,

Yes, you are correct. There is no functionality for the purpose that you are looking for. The only possible approach that cross my mind is to the GetQueueLevel functionality to receive information about the number of items between the camera and the exit limit, if this value is too high you might use that as an indication that you have to slow down the belt.

BR, Erik