Page 16 SITRANS Probe LU (PROFIBUS PA) – INSTRUCTION MANUAL 7ML19985JB02
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Startup
Startup
Only two steps are necessary for a Quick Setup (see page 19 for detailed instructions):
1. Use the handheld programmer to set the PROFIBUS address locally.
2. Use SIMATIC PDM to calibrate the four set points: High and Low Calibration Point,
and High and Low Level Point.
SITRANS Probe LU automatically starts up in RUN mode and detects the material level.
The LCD displays the material level referenced from the Low Level Point
1
(the output of
Analog Input Function Block 1/AIFB1). System status is displayed on the LCD, or on a
remote communications terminal.
2
3
Startup Display (RUN mode)
1.
See
Calibration
on page 20 for an illustration.
Note: SITRANS Probe LU (PROFIBUS PA) continues to monitor in and out values even
when the device is in PROGRAM mode.
2.
See
Loss of Echo (LOE)
on page 36, for more details.
3.
For a list of fault codes, their meanings, and corrective actions, please see
Acyclic
Extended Diagnostics (General Fault Codes)
on page 30.
Normal operation
1
3
4
5
2
6
7
1 – Primary region displays material level (Output of the active AIFB)
2 – Menu number (displays the number of the active AIFB: 1 or 2)
3 – Echo status indicator: Reliable Echo or Unreliable Echo
(The Unreliable Echo border flashes if LOE is pending
2
. When LOE becomes
active, the border is solid and the text region displays S: 0.)
4 – Bar graph border (always visible in RUN mode)
5 – Units or Percent
6 – Active bar graph represents material level
(Lowest bar flashes once per second indicating device is not frozen.)
7 – Secondary region can display one of the following:
• internal electronics temperature
• value representing echo confidence
•distance
1
(Secondary Value 2)
• general status information, or a fault code
3
Failsafe operation
3
5
6
7
2
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