The Sylk actuator input controls the controller output or actuator travel time. The actuator travel time is the time required by the actuator to travel from 0 % to 100 % open or 100 % to 0 % open. This time interval varies depending on the type of actuator and ranges from 0 to 500.
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Figure 2: Sylk Actuator Input Property Sheet |
Inputs
Input Name |
Description |
In |
To provide the value from the controller to the Sylk actuator. |
Table 1: Inputs of Sylk Actuator Input Function
Output
Output Name |
Description |
NA |
NA |
Table 2: Output of Sylk Actuator Input Function
Parameters
Parameter Name |
Description |
sylkDevice |
Select the required SylkActuator device from the drop-down menu. |
status |
This field is read-only. Shows the following status of the parameter:
For further details, see Sylk Component Status Behaviors. |
faultCause |
This field is read-only. It indicates the cause of the parameter's fault state. This property is empty unless a fault occurs. When multiple errors occur, the fault cause displays only the top errors on the list. If the error is resolved, the next error message will be displayed. |
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 5 seconds. |
senDelta |
CSenDelta 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". |
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. |
FDInterval |
TFDInterval for Sylk actuator input parameter is 20 secs. |
inputType |
There are two types of Sylk actuator inputs actuator command and actuator travel time:
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note |
Send interval must be less than one-third of Fail Detect interval (if Fail Detect is enabled) to ensure proper functionality. |
Table 3: Parameters of Sylk Actuator Input Function
Refer to General Description for general information about IRM N4 Function Blocks.