Vega VEGAFLEX 83 Modbus and Levelmaster protocol PFA in Manual de usuario Pagina 81

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11 Supplement
VEGAFLEX 83 • Modbus and Levelmaster protocol
41838-EN-130314
Parameter Congurable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 Levelmaster 32 32
The Levelmaster commands are based on the following syntax:
Capital letters are at the beginning of certain data elds
Small letters stand for data elds
All commands are terminated with "<cr>" (carriage return)
All commands start with "Uuu", whereby "uu" stands for the address (00-31)
"*" can be used as a joker for any position in the address. The sensor always converts this in
its address. In case of more than one sensor, the joker must not be used, because otherwise
several slaves will answer
Commands that modify the instrument return the command with "OK“. "EE-ERROR" replaces
"OK" if there was a problem changing the conguration
Report Level (and Temperature)
Request:
Parameter Length Code/Data
Report Level (and Temperature) 4 characters ASCII Uuu?
Response:
Parameter Length Code/Data
Report Level (and Temperature) 24 characters ASCII UuuDlll.llFtttEeeeeWwwww
uu = Address
lll.ll = PV in inches
ttt = Temperature in Fahrenheit
eeee = Error number (0 no error, 1
level data not readable)
wwww = Warning number (0 no
warning)
Level in inches is repeated for sensors with 2 levels. PV value is transmitted as rst measured value,
SV as second measured value.
PV, SV, TV and QV can be adjusted via the sensor DTM.
Report Unit Number
Request:
Parameter Length Code/Data
Report Unit Number 5 characters ASCII U**N?
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