ALPHABETIC REFERENCE EXCEL CARE CONTROL ICONS74-5577–33 (US) 232EN2B-0184 GE51 R0518 (Europe)Function Write the value of an input with a defined priority to an output which must beconnected with the present value of a datapoint. The datapoint must be connecteddirectly not by a connection line.I/O Dialog BoxInputs Three inputs where:Value: to be writtenEnable: 1 = write is enabled. Value will be written to the selected priority of theconnected output provided that this priority is currently not set or thenew value is different.0 = Write is disabled. If the Enable input changes from TRUE (1) to FALSE (0), theselected priority of the output is released provided that this statement has written thepriority while the Enable input was TRUE and the current value of the priority isequal to the value that was written (but not necessarily equal to the current Valueinput).NOTES:• It is strongly recommended not to change the priority while the Enable input isTRUE (1) or in the first cycle when it is FALSE. Using a constant for the prioritywill avoid unexpected misbehavior.• If the Enable input is FALSE in the first executed cycle after application start thepriority is always released.Prio: priority level that will be applied for writingLevels are 2-16Outputs One output: Y = present value of datapointInternal parameters NoneWrite / WIAFunction Write a value to an attribute of a user address. The value can come from aparameter, physical point, or another control icon. WIA writes to a maximum of threeattributes for one point.Initial Dialog Box The WIA icon displays the following dialog box when you first place the icon in thework space and click it. Select the point you want to write to and then connect it tothe ADR output in the WIA box.Output One point, any type (ADR).Attribute Selection Dialog Box After you connect an output to ADR, the Attribute Selection dialog box displays.Select the desired attributes.
