58
10 Supplement
VEGABAR 87 • Modbus and Levelmaster protocol
46297-EN-220624
Reference voltage
9)
500 V AC
Conductive connection
Between ground terminal and metallic process fitting
Electrical protective measures
Housing material
Version
Protection acc. to
IEC 60529
Protection acc. to
NEMA
Plastic
Double chamber
IP66/IP67
Type 4x
Aluminium
Stainless steel, precision casting
Stainless steel (transmitter, version
with external housing)
IP68 (25 bar)
-
Connection of the feeding power supply
unit
Networks of overvoltage category III
Altitude above sea level
Ʋ by default
up to 2000 m (6562 ft)
Ʋ with connected overvoltage protection up to 5000 m (16404 ft)
Pollution degree
10)
4
Protection rating (IEC 61010-1)
II
10.2 Device communication Modbus
In the following, the necessary device-specific details are shown. You can find further information of
Parameters for the bus communication
The VEGABAR 87 is preset with the following default values:
Parameter
Configurable Values
Default Value
Baud Rate
1200, 2400, 4800, 9600, 19200
9600
Start Bits
1
1
Data Bits
7, 8
8
Parity
None, Odd, Even
None
Stop Bits
1, 2
1
Address range Modbus
1 … 255
246
Start bits and data bits cannot be modified.
General configuration of the host
The data exchange with status and variables between field device and host is carried out via
register. For this, a configuration in the host is required. Floating point numbers with short prevision
(4 bytes) according to IEEE 754 are transmitted with individually selectable order of the data bytes
(byte transmission order). This "
Byte transmission order
" is determined in the parameter "
Format
9)
Galvanic separation between electronics and metal housing parts
10)
When used with fulfilled housing protection.
