Vega VEGABAR 81 Modbus and Levelmaster protocol - Opera Bedienungsanleitung Seite 8
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3 Product description
VEGABAR 81 • Modbus and Levelmaster protocol
46293-EN-131107
This operating instructions manual applies to the following instrument
versions:
•
Hardware from 1.0.0
•
Software version from 1.0.0
The scope of delivery encompasses:
•
Pressure transmitter
•
Documentation
– this operating instructions manual
– Testcerticate,pressuretransmitters
– Operating instructions manual "Display and adjustment mod-
ule" (optional)
– Supplementary instructions manual "Heating for display and
adjustment module" (optional)
– Supplementary instructions manual "Plug connector for con-
tinuously measuring sensors" (optional)
– Ex-specic"Safety instructions" (with Ex versions)
– ifnecessary,furthercerticates
3.2 Principle of operation
The VEGABAR 81 is suitable for the measurement of the following
process variables:
•
Process pressure
•
Level
Fig. 2: Process pressure measurement VEGABAR 81
In combination with a slave sensor, VEGABAR 81 is also suitable for
electronicdierentialpressuremeasurement.
Youcannddetailedinformationintheoperatinginstructionsofthe
respective slave sensor.
VEGABAR 81 is suitable for applications in virtually all industries. It is
used for the measurement of the following pressure types.
•
Gauge pressure
•
Absolute pressure
Scope of this operating
instructions manual
Scope of delivery
Measured variables
Electronicdierential
pressure
Application area
- Operating Instructions 1
- VEGABAR 81 1
- Contents 2
- 1 About this document 4
- 2 For your safety 5
- 2.7 NAMUR recommendations 6
- 3 Product description 7
- 3.2 Principle of operation 8
- 3 Product description 10
- 4 Mounting 12
- 4.4 Level measurement 18
- 4.5 External housing 19
- 5.1 Preparing the connection 20
- 5.2 Connection 21
- 4...20mA 22
- 6.2 Adjustment system 27
- 7.1 Connect the PC 42
- 8.1 Maintenance 46
- 8.2 Diagnosis memory 46
- 1 Failure - red 47
- 3 Function check - orange 47
- 4 Maintenance - blue 47
- 46293-EN-131107 48
- 8.4 Rectify faults 50
- IP 68 (25 bar) 51
- 8.7 Software update 52
- 9 Dismounting 54
- 10 Supplement 55
- 10.2 Basics Modbus 63
- 10.3 Modbus register 65
- 10.4 Modbus RTU commands 67
- FC4 Read Input Register 68
- FC6 Write Single Register 68
- FC8 Diagnostics 69
- FC16 Write Multiple Register 69
- FC17 Report Slave ID 70
- 10.5 Levelmaster commands 71
- Report Unit Number 72
- Assign Unit Number 72
- Set number of Floats 72
- Set Baud Rate 73
- Set Receive to Transmit Delay 73
- Report Number of Floats 73
- Error codes 74
- 10.7 Dimensions 79
- VEGABAR81,threadedtting 82
- 10.9 Trademark 87
- Printing date: 92
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