Vega VEGAPULS C 23 User Manual

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14 Supplement
VEGAPULS C 23 • Modbus and Levelmaster protocol
58349-EN-200806
14.9 Levelmaster protocol
The VEGAPULS C 23 is also suitable for connection to the following RTUs with Levelmaster proto-
col. The Levelmaster protocol is often called " Siemens" " Tank protocol".
RTU Protocol
ABBTotalow Levelmaster
Kimray DACC 2000/3000 Levelmaster
Thermo Electron Autopilot Levelmaster
Parameters for the bus communication
The VEGAPULS C 23 is preset with the default values:
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)
Parameter Length Code/Data
Request: Report Level (and Tem-
perature)
4 characters ASCII Uuu?
Response: Report Level (and Tem-
perature)
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 warn-
ing)
PV in inches will be repeated if " Set number of oats" is set to 2. Hence 2 measured values can be

Vega VEGAPULS C 23 Specifications

General

Brand	Vega
Model	VEGAPULS C 23
Category	Accessories
Language	English