Vega VEGAFLEX 83 Modbus and Levelmaster protocol PFA in Manual de usuario Pagina 63
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9 Diagnostics and service
VEGAFLEX 83 • Modbus and Levelmaster protocol
41838-EN-130314
Fault description Error pattern Cause Rectication
5. Measured value
jumps sporadically to
100 % during lling
Level
time
0
– Varying condensation or con-
tamination on the probe
– Carry out false signal suppres-
sion
6. Measured value
jumps to ≥ 100 % or
0 m distance
Level
time
0
– Level echo is no longer
detected in the close range
due to false signals in the close
range. The sensor goes into
overll protection mode. The
max. level (0 m distance) as
well as the status message
"Overll protection" are output-
ted.
– Eliminate false signals in the
close range
– Check installation conditions
– If possible, switch o the func-
tion "Overll protection"
Measurement error during emptying
Fault description Error pattern Cause Rectication
7. Measured value re-
mains unchanged in
the close range during
emptying
Level
time
0
– False echo larger than the level
echo
– Level echo too small
– Eliminate false signals in the
close range
– Remove contamination on the
probe. After having removed
the source of the false signals,
the false signal suppression
must be deleted.
– Carry out a new false signal
suppression
8. Measured value re-
mains reproducible
in one position during
emptying
Level
time
0
– Stored false signals in this
position are larger than the
level echo
– Delete false signal memory
– Carry out a new false signal
suppression
Depending on the reason for the fault and the measures taken, the
steps described in chapter "Setup" must be carried out again or must
be checked for plausibility and completeness.
Should these measures not be successful, please call in urgent cases
the VEGA service hotline under the phone no.
+49 1805 858550.
The hotline is also available outside the normal working hours on
seven days a week around the clock.
Since we oer this service worldwide, the support is in the English
language. The service itself is free of charge, the only costs involved
are the normal call charges.
9.5 Exchanging the electronics module
If the electronics module is defective, it can be replaced by the user.
In Ex applications only one instrument and one electronics module
with respective Ex approval may be used.
If there is no electronics module available on site, the electronics
module can be ordered through the agency serving you. The electron-
Reaction after fault recti-
cation
24 hour ser
vice hotline
- Operating Instructions 1
- VEGAFLEX 83 1
- Quick start 2
- Contents 5
- 1 About this document 7
- 2 For your safety 8
- 2.6 NAMUR recommendations 9
- 3 Product description 10
- 3.2 Principle of operation 11
- 3 Product description 12
- 4 Mounting 17
- 5.1 Preparing the connection 21
- 5.2 Connection 22
- 4...20mA 23
- 6.1 Adjustment volume 25
- 6.3 Adjustment system 26
- 7.1 Connect the PC 47
- Fig. 23: Select quick setup 50
- 1 Quick setup 50
- 2 Extended adjustment 50
- 3 Maintenance 50
- 8 Set up with other systems 55
- 9 Diagnostics and service 56
- 9.3 Status messages 57
- 9 Diagnostics and service 58
- 9.4 Rectify faults 61
- 9.6 Software update 64
- 10 Dismounting 65
- 11 Supplement 66
- 41838-EN-130314 69
- 11.2 Basics Modbus 73
- Bus architecture 74
- Protocol description 74
- 11.3 Modbus register 75
- 11.4 Modbus RTU commands 77
- FC4 Read Input Register 78
- FC6 Write Single Register 78
- FC8 Diagnostics 78
- FC16 Write Multiple Register 79
- FC17 Report Slave ID 79
- 11.5 Levelmaster commands 80
- Report Unit Number 81
- Assign Unit Number 82
- Set number of Floats 82
- Set Baud Rate 82
- Set Receive to Transmit Delay 83
- Report Number of Floats 83
- Error codes 83
- Fisher ROC 809 84
- ABB Total Flow 85
- Thermo Electron Autopilot 86
- Bristol ControlWave Micro 87
- ScadaPack 88
- 11.9 Trademark 92
- Printing date: 96
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