Endress+Hauser Prosonic Flow 90, Operating Instructions Manual

Page: 53 / 114

Proline Prosonic Flow 90 5 Operation
Hauser 53
3 Read the primary process variable
as current in mA and four (preset
using Command 51) dynamic
process variables
Access type = read
none 24 bytes are sent as a response:
– Byte 0
–
3: Primary process variable current in mA
– Byte 4: HART unit code of the primary process
variable
– Byte 5
–
8: Primary process variable
– Byte 9: HART unit code of the secondary process
variable
– Byte 10
–
13: Second process variable
– Byte 14: HART unit code of the third process
variable
– Byte 15
–
18: Third process variable
– Byte 19: HART unit code of the fourth process
variable
– Byte 20
–
23: Fourth process variable
Factory setting:
• Primary process variable = Volume flow
• Second process variable = Totalizer
• Third process variable = Sound velocity
• Fourth process variable = Flow velocity
!
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”.
6 Set HART shortform address
Access type = write
Byte 0: Desired address (0...15)
Factory setting:
0
!
Note!
With an address >0 (multidrop mode), the current
output of the primary process variable is set to 4 mA.
Byte 0: Active address
11 Read unique device identification
using the TAG (measuring point
designation)
Access type = Read
Byte 0
–
5: Measuring point designation (TAG) Device identification delivers information on the
device and the manufacturer. It cannot be changed.
The response consists of a 12 byte device ID if the
given TAG agrees with the one saved in the device:
– Byte 0: fixed value 254
– Byte 1: Manufacturer ID, 17 = E+H
– Byte 2: Device type ID, 88 = Prosonic Flow 90
– Byte 3: Number of preambles
– Byte 4: Universal commands rev. no.
– Byte 5: Device-specific commands rev. no.
– Byte 6: Software revision
– Byte 7: Hardware revision
– Byte 8: Additional device information
– Byte 9
–
11: Device identification
12 Read user message
Access type = read
none Byte 0
–
24: User message
!
Note!
You can write the user message using Command 17.
13 Read TAG, TAG descriptor and
date
Access type = read
none – Byte 0
–
5: TAG name
– Byte 6
–
17: TAG description
– Byte 18
–
20: Date
!
Note!
You can write the TAG, TAG descriptor and date using
Command 18.
Command No.
HART command / Access type Command data
(numeric data in decimal form)
Response data
(numeric data in decimal form)