SPCAlarms
- Last UpdatedJul 18, 2023
- 1 minute read
Returns the status of the specified SPC alarm. This function is used to configure SPC alarms, by defining alarms with this trigger in Advanced Alarms.
This function can only be used if the Alarm Server is on the current machine. When the Alarm Server is not in the calling process, this function will become blocking and cannot be called from a foreground task. In this case, the return value will be undefined and a Cicode hardware alarm will be raised.
Syntax
SPCAlarms(sSPCTag, AlarmType)
sSPCTag:
The SPC Tag name as defined in SPC Tags.
AlarmType:
The description of the alarm type. The following types are valid:
XFreak
XOutsideCL
XAboveUCL
XBelowLCL
XOutsideWL
XGradualUp
XGradualDown
XUpTrend
XDownTrend
XErratic
XStratification
XMixture
ROutsideCL
RAboveUCL
RBelowLCL
Return Value
Alarm status, ON (1) or OFF (0).
Related Functions
Example
Advanced Alarm
|
Alarm Tag |
Feed_SPC_XBLCL |
|
Alarm Desc |
Process mean below LCL |
|
Expression |
SPCAlarms("Feed_SPC", XBelowLCL) |
|
Comment |
Trigger an alarm when XBelowLCL condition becomes true. |
Advanced Alarm
|
Alarm Tag |
Temp_SPC_GRADUP |
|
Alarm Desc |
Mean is drifting up |
|
Expression |
SPCAlarms("Temp_SPC", XGradualUp) |
|
Comment |
Trigger an alarm if mean drifts up. |