Conveyor control

From PlcWiki

Revision as of 13:45, 12 April 2010

In case of defined situations (e.g. a sequence error or a not-finished product) the request for stop of a conveyor of a production line is sent to the conveyor controller. It is a software module, which is running on a computer connected to a conveyor PLC with a serial line or via Ethernet network.

The conveyor can be stopped in these cases:

1. Sequence error
2. Not-completed product
3. NOK result of any operation
4. Timeout for the cockpit on workstation expired (the product was not finished on a station within the time limit)
5. Timeout for the inactivity on workstation expired (no action taken on a station within the time limit while the product was not finished)
6. Cockpit is sent to rework:
   1. When scanned a barcode “Send to rework”
   2. Automatically when NOK result of any operation

PLC Client parameters

• line.ConveyorServer = plcgntcs

• line.ConveyorServerPort = 6779

• # workplace.LampToSwitch = 6

• workplace.ConveyorID = 21

• workplace.ConveyorWSAddr = 0000000000000010

• WorkPlace.SendConveyorRelease = Yes

• WorkPlace.SequenceConveyorControl = Yes

• workplace.Conveyor.SendPID = Yes

• workplace.Conveyor.ReleaseWhenProductFinished = Yes

• workplace.Conveyor.StopWhenIncompleteProduct = No

• workplace.Conveyor.StopWhenSequenceError = No

• workplace.Conveyor.StopWhenProductTimeout = Yes

• workplace.Conveyor.StopWhenActivityTimeout = Yes