Value from Controller Function Block.

This parameter displays value from the controller to the wall module.

Figure 1: ControllerValue Function Block

Figure 2: ControllerValue Property Sheet

Inputs

Input Name

Description

In

To provide the Setpoints from the controller to the Wall module.

Table 1: Inputs of ControllerValue Function

Output

Output Name

Description

NA

Table 2: Output of ControllerValue Function

Parameters

Parameter Name

Description

Sylk device

Select the required device from the drop-down menu.

Status

Read-only point. Shows the status of the parameter. (alarm, fault, overridden, disabled, down, stale, null, unackedAlarm). For further details see Sylk Component Status Behaviors.

faultCause

Read-only point. Indicates the reason why the parameter is in fault. This property is empty unless a fault exists.

sendInterval

Seconds

Send interval is the time between the end of a timeout period or completion of a network request and the next request for data on the network. Default is Cov seconds.

senDelta

SenDelta is another name for the delta value for Significant Event Notification. It allows the controller to send the input parameter value to the Sylk device only when the difference between the last sent value and the current value is greater than or equal to senDelta. Otherwise, the value change will not be propagated to the Sylk device.

Example: Assume senDelta is set to 2, the last sent input parameter value is 2, and the current value is 5. The difference in parameter values is 3 (5-2=3), which is greater than the value of senDelta (such as 2). This enables the controller to send the current value of the input parameter (such as 5) to the Sylk device.

It is introduced to control the increase in network traffic caused by frequent changes in the values of input parameters. This can be used to tune the controller so that minor value changes do not propagate to the network. The senDelta value is set to 0.5 by default.

Note: The senDelta feature is only available if the sendInterval is set to Cov. A senDelta of zero indicates that any change in value is significant and is propagated to the network.

senDeltaNote

The senDelta recognizes the value only when the sendInterval is set to Cov.

Category

The category is defined by the user while configuring Sylk parameters. The Category is displayed as the default category.

enableFD

The time it takes for a failure to be reported to the Sylk device.

"Yes": If the parameter has not received an update from the BACnet network source within the fail detect time, an alarm is generated, and the current value is set to invalid.

Note: The time it takes to detect a failure is determined by the update rate that has been set.

"No": No means that the object will retain the last value written to it until the BACnet network source changes.

paramPermissions

User can select the viewing option for the parameter. Select the parameter as viewable by Contractor Only or Tenant Read Only from the drop-down menu. If Contractor Only is selected, only the contractor can view the parameters in the wall module. If Tenant Read Only is selected, tenant can view the parameters, but cannot make any changes in the parameters.

Enumerated

This option allows the user to provide Enum Setpoints.

enumDefinition

If the Enumerated is set to yes then user can set the multiple states of the Enum setpoint.

defaultEnumValue

This option displays list of default Enum value from the defined enum range.

numberofDecimals

Provide the value of numbers of decimal as per requirement.

selectLabelsToShowOnScreen

Select the required option to show the parameter.

Table 3: Parameter of ControllerValue Function

Refer to General Description for general information about IRM N4 Function Blocks.