The following parameters are available when conditional alarming is enabled on a function block.
Parameter |
Units |
Description |
|---|---|---|
HI_HI_ENAB HI_ENAB LO_ENAB LO_LO_ENAB DV_HI_ENAB DV_LO_ENAB DISC_ENAB |
None |
When false, the ACT parameter is forced to zero. You create the conditional event in another block that determines the value of this parameter by wiring the value to the alarm_ENAB input on this block. |
HI_HI_DELAY_OFF HI_DELAY_OFF LO_DELAY_OFF LO_LO_DELAY_OFF DV_HI_DELAY_OFF DV_LO_DELAY_OFF DISC_DELAY_OFF |
Seconds |
When true, this parameter delays the time (in seconds) that it takes for corresponding _ACT parameter to clear (be false) after a primary alarm condition clears. Every time the conditional event becomes false, the timer resets. |
HI_HI_DELAY_ON HI_DELAY_ON LO_DELAY_ON LO_LO_DELAY_ON DV_HI_DELAY_ON DV_LO_DELAY_ON DISC_DELAY_ON |
Seconds |
When true, this parameter delays the time (in seconds) that it takes for corresponding _ACT parameter to be true after a primary alarm condition occurs. Every time the conditional event becomes false, the timer resets. |
HI_HI_ENAB_DELAY HI_ENAB_DELAY LO_ENAB_DELAY LO_LO_ENAB_DELAY DV_HI_ENAB_DELAY DV_LO_ENAB_DELAY DISC_ENAB_DELAY |
Seconds |
When alarm_ENAB becomes non-zero, this parameter continues to force corresponding _ACT parameter to zero for the time specified (in seconds). The timer resets only when alarm_ENAB goes from zero to 1. |
HI_HI_HYS HI_HYS LO_HYS LO_LO_HYS DV_HI_HYS DV_LO_HYS |
Percent of EU range |
This parameter is used as a deadband when resetting base alarm conditions for analog values. The block uses the value of alarm_HYS instead of the standard alarm_HYS, regardless of the value of the alarm_ENAB parameters. |