Vega VEGAPULS C 21 - Levelmaster Protocol

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14 Supplement
VEGAPULS C 21 • Modbus and Levelmaster protocol
58343-EN-200806
Parameter Length Code/Data
Request: Function Code 1 Byte 0x11
Response: Function Code 1 Byte 0x11
Byte Number 1 Byte
Slave ID 1 Byte
Run Indicator Status 1 Byte
FC43Sub14,ReadDeviceIdentication
Withthisfunctioncode,theDeviceIdenticationisqueried.
Parameter Length Code/Data
Request: Function Code 1 Byte 0x2B
MEI Type 1 Byte 0x0E
Read Device ID Code 1 Byte 0x01 to 0x04
Object ID 1 Byte 0x00 to 0xFF
Response: Function Code 1 Byte 0x2B
MEI Type 1 Byte 0x0E
Read Device ID Code 1 Byte 0x01 to 0x04
Conrmity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
14.9 Levelmaster protocol
The VEGAPULS C 21 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 21 is preset with the default values:
Parameter CongurableValues Default Value
Baud Rate 1200, 2400, 4800, 9600, 19200 9600