6. Function blocks6.2 Interrupt function blocksAssigning operands Bit outputsConstant 0, constant 1 xM – Markers xSN - Output bit via NET (send) xN - Network marker bit xnN - NET station n marker xLE - Output backlight xQ - Bit output from another FB xParameter setDescription NoteFunction block release byEN is necessaryIf this checkbox is enabled, the stateof function block input EN will beevaluated. If the checkbox is dis-abled instead, the function block willbe enabled and function block inputEN will not do anything.This parameter ensures thatwhen existing programs arecopied, the functionality of thefunction blocks that are carriedover will be retained. The para-meter will be automatically setto 0 or 1 depending on the func-tion block.Parameter display+ Call enabledFunction block parameters and con-stants can be edited on the device.Interrupt source Used to select device inputs I1through I8 as a trigger for the inter-ruptEdit interrupt routine Clicking on the button will open theinterrupt routine in the ProgrammingviewSimulation possible6.2.2.4 OtherRetentionThe function block does not recognize retentive data.The interrupt program does not have any retentive data.Example slope in easySoft 7Rising edge operating modeCutting device at station 2. The interrupt is triggered with a pulse at function block inputI1. Device output Q1 is set in the interrupt program and the product is cut. Device outputQ2 is reset. The interrupt program Q01 passes marker 211 to the main program with Q1and signals that the cutting device is active.Once the product has been cut at station 2, there is a rising edge at input I1 of the basedevice. Processing must be initiated.422 easyE4 11/18 MN050009 EN www.eaton.com
