18 LP1109
Visualisation in the PGM of sensor error detection
and input signal outside range
Sensor error check:
Configuration Sensor error detection:
R1, ERR.ACT=NONE - R2, ERR.ACT=NONE,
OUT.ERR=NONE.
OFF
Else: ON
Outside range readout (IN.LO, IN.HI):
If the valid range of the A/D converter or the polynomial is exceeded
Input Range Readout Limit
VOLT
0...1 V / 0.2...1 V
IN.LO < -25 mV
IN.HI > 1.2 V
0...10 V / 2...10 V
IN.LO < -25 mV
IN.HI > 12 V
CURR 0...20 mA / 4...20 mA
IN.LO < -1.05 mA
IN.HI > 25.05 mA
LIN.R
0...800
Ω
IN.LO < 0 Ω
IN.HI > 1075 Ω
0...10 kΩ
IN.LO < 0 Ω
IN.HI < 110 kΩ
POTM -
IN.LO < -0.5 %
IN.HI > 100.5 %
TEMP TC / RTD
IN.LO < temperature range -2°C
IN.HI > temperature range +2°C
Display readout below min.- / above max. (-1999, 9999):
Input Range Readout Limit
All All
-1999 Display readout <-1999
9999 Display readout >9999
Sensor error detection limits
Sensor error detection (SE.BR, SE.SH):
Input Range Readout Limit
CURR Loop break (4..20 mA) SE.BR <= 3.6 mA; > = 21 mA
POTM All, SE.BR on all 3-wire SE.BR > ca. 126 k
Ω
LIN.R
0...800
Ω SE.BR > ca. 875 Ω
0...10 kΩ SE.BR > ca. 11 kΩ
TEMP
TC SE.BR > ca. 750 k
Ω / (1.25 V)
RTD, 2-, 3-, and 4-wire
No SE.SH for Cuxx, Pt10, Pt20 and Pt50
SE.BR > ca. 15 k
Ω
SE.SH < ca. 15 Ω
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