Tags

Tags connected to an address in the controller will be read and changes will be reflected in the tags value. If no address is set on the tag it is considered a internal. Internal tags will get it value from the initial value property or from an expression. Note! All changes to tags must be sent to the gateway to take affect.

Parameter	Description
Name	Name of tag. Used to identify tags in widgets
Short name	Short name that will be displayed in some widgets. Eg Values widget
Address	Address or identifier in PLC/device.
Data type	Data type of tag in PLC/device
Poll interval	How often the tag is read in plc/device
Logged	If tag is stored in database and historic data can be shown in eg Trend widget
Enabled	if the tag is read in controller
Enabled condition	A condition that is evaluated in controller if tag should be read.
Read only	If the user should b enable to write value to the tag
Authenticate	If the user needs to login again to be able to write the tag value
Unit	Unit of value. Will be percent in some widgets.
Number of decimals	Number of decimal of shown in widgets.
Description	Optional description of tag

Scaling

Scaling affects only tags connected to a controller. The offset gain value affects the values with the following formula:

Value = Offset + (Gain * controller value);

With Min, Max, Scaled min Scaled max the formula is:

CalculatedGain = Abs(ScaledMax - ScaledMin) / Abs(Max - Min);
ScaledValue = ControllerValue * CalculatedGain * Gain;
Value = ScaledValue + ScaledMin + Offset;

Parameter	Description
Min	Minimal value in the device address
Max	Maximal value in the device address
Scaled min	Wanted minimum value after scale
Scaled max	Maximum value after scale
Gain	Gain multiplied with the controller value
Offset	Offset added to the controller value

Advanced

Parameter	Description
Deadband	Type of deadband. None, Absolute or percent.
Deadband value	The amount of change to trigger a new value change event. In absolute value of percent of previous value.
External id	Id from an external system
Aggregate length	The time frame that is used for aggregated data. This can be used for virualizing data in the trend widget and also for calculations in process views.
Initial value	The initial value of the tag will be written to controller if an address is set on the tag.
Expressionable	If the tag can be used in an expression
Expression	Click to bring up expression editor

Menu

Menu item	Description
Add tag	Add a new tag to the tag list
Browse tags	Browse tags from external system. Eg OPC UA Server or Ewon Flexy
Copy selected tags	Copy selected tags with all parameters.
Delete selected tags	Delete all selected tags
Import tags	Import tags from excel
Export tags	Export tags to excel
Remove controller	Delete controller an all it tags.

Settings

Update settings for the controller. The settings are dependent of what driver that are selected. Updates on this page must be sent to gateway. Ping uses the IpAddress in the settings page and the configuration must be sent to the gateway for this to work.