VEGA VEGAPULS 67 (≥ 2.0.0 - ≥ 4.0.0) Modbus and Levelmaster protocol - Manual (Page 70)

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11 Supplement
VEGAPULS 67 • Modbus and Levelmaster protocol
41369-EN-121011
Parameter Length Code/Data
MEI Type 1 Byte 0x0E
Read Device ID Code 1 Byte 0x01 to 0x04
Object ID 1 Byte 0x00 to 0xFF
Response:
Parameter Length Code/Data
Function Code 1 Byte 0x2B
MEI Type 1 Byte 0x0E
Read Device ID Code 1 Byte 0x01 to 0x04
Confirmity Level 1 Byte 0x01, 0x02, 0x03, 0x81, 0x82, 0x83
More follows 1 Byte 00/FF
Next Object ID 1 Byte Object ID number
Number of Objects 1 Byte
List of Object ID 1 Byte
List of Object length 1 Byte
List of Object value 1 Byte Depending on the Object ID
11.5 Levelmaster commands
The VEGAPULS 67 is also suitable for connection to the following RTUs with Levelmaster protocol.
The Levelmaster protocol is often called "Siemens" "Tank protocol".
RTU Protocol
ABB Totalflow Levelmaster
Kimray DACC 2000/3000 Levelmaster
Thermo Electron Autopilot Levelmaster
11.5 Parameters for the bus communication
The VEGAPULS 67 is preset with the 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 Levelmaster 32 32
The Levelmaster commands are based on the following syntax:
•
Capital letters are at the beginning of certain data fields
•
Small letters stand for data fields
•
All commands are terminated with "" (carriage return)
•
All commands start with "Uuu", whereby "uu" stands for the address (00-31)