Endress+Hauser HART Proline Promass 83, Operating Instructions Manual

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Proline Promass 83 Operation
Hauser 41
5.4.4 Universal / Common practice HART commands
The following table contains all the universal commands supported by the device.
Command No.
HART command / Access type Command data
(numeric data in decimal form) Response data
(numeric data in decimal form)
Universal Commands
0
(HART 5) Read unique device identifier
Access type = read none Device identification delivers information on the
device and the manufacturer. It cannot be changed.
The response consists of a 12-byte device ID:
– Byte 0: Fixed value 254
– Byte 1: Manufacturer ID, 17 = E+H
– Byte 2: Device type ID, e.g. 81 = Promass 83
or 80 = Promass 80
– Byte 3: Number of preambles
– Byte 4: Universal commands rev. no.
– Byte 5: Device-spec. commands rev. no.
– Byte 6: Software revision
– Byte 7: Hardware revision
– Byte 8: Additional device information
– Byte 9-11: Device identification
0
(HART 7) Read unique device identifier
Access type = read none Device identification delivers information on the
device and the manufacturer. It cannot be changed.
The response consists of a 22 byte device ID:
– Byte 0: Fixed value 254
– Byte 1: Manufacturer ID, 17 = E+H
– Byte 2: Device type ID, e.g.66 = Promag 53
– Byte 3: Number of preambles
– Byte 4: Universal commands rev. no.
– Byte 5: Device-specific rev. no. Commands
– Byte 6: Software revision
– Byte 7: Hardware revision
– Byte 8: Additional device information
– Byte 9-11: Device identification
– Byte 12: Minimum number of preambles that are
sent by the slave to the master with the response
message
– Byte 13: Maximum number of device variables
– Byte 14-15: Configuration change counter
– Byte 16: Extended field device status
– Byte 17-18: Manufacturer ID code
1 Read primary process variable
Access type = read none – Byte 0: HART unit code of the primary process
variable
– Bytes 1-4: Primary process variable
Factory setting:
Primary process variable = Mass flow
!
Note!
• You can set the assignment of device variables to
process variables using Command 51.
• Manufacturer-specific units are represented
using the HART unit code "240".
2 Read the primary process
variable as current in mA and
percentage of the set measuring
range
Access type = read none – Bytes 0-3: Actual current of the primary process
variable in mA
– Bytes 4-7: Percentage of the set measuring range
Factory setting:
Primary process variable = Mass flow
!
Note!
You can set the assignment of device variables to
process variables using Command 51.