Pepperl+Fuchs 1/209 Handbuch Seite 80

Trip Amplifier 1/209
Software Description
4.4.1.15 Trip Stuck Sensor Alarm
Prior to calling this rate of change alarm use the timer command TIM,op5 to enter the time
since the last call in memory cell op5 (see section "Timers and other operations").
An input signal or a computed value op1 is monitored to see if the value has changed by
more than the required minimum value op3 during the sample time (time interval op2). If
the minimum change has not been achieved, an alarm is generated because it must now
be assumed that there is a fault in the circuit which is under observation.
Memory cells op6 to op9 must not be overwritten during the remaining user program.
Call
Formula
Example
STS,E01,K01,K02,K03,X01,X02,X03,X04,X05,X06
80
STS,op1,op2,op3,op4,op5,op6,op7,op8,op9,op10
STS = stuck sensor
op1 = input
op2 = time interval in ms
op3 = min change per time interval
op4 = hysteresis
op5 = time since last call in ms
op6 = min input memory
op7 = max input memory
op8 = time memory (integral of op5)
op9 = alarm memory
op10 = alarm -1,0,1
op10 = 1 for alarms or if op10 was 1 before
op10 = 0 while inside deadband or if op10 was 0 before
op10 = -1 when there is no alarm