Variable Name: close_pstn_hysteresis

Variable ID: 0x4057

Variable Label: Close Pstn Hyst:

Variable Help: Close Position Hysteresis Value, this value serves several puposes. It is used to determine valid close start/end position threshold for signature and Run-Time capture, end point for valve speed determination in close direction, and finally for PST break position determination in Fail-Open valves. For example in PST, a 2% value means valve must move at least 2% from start position to detect break. In general, the default value should be suitable but may be modified to compensate for any play between the valve linkage and position sensor. Currently one warning alert can be generated based upon this, Close Position Alert. The allowed range is 0.0-20.0%.

Variable Handling: R/W

Variable Class: Dynamic

Variable Size: 4

Variable DataType: Float

Variable Display Format: |en|.1f

Variable Edit Format: |en|4.1f

Variable Unit:

Variable Max: 20

Variable Min: 0

Variable Read Command List

Command Number	Command ID	Command Name
132	426C	read_hysteresis_configuration

Variable Write Command List

Command Number	Command ID	Command Name
133	426D	write_hysteresis_configuration