Endress+Hauser Proline Promag 10, Руководство по эксплуатации

Страница: 57 / 124

PROline Promag 10 5 Operation
Hauser 57
Common practice commands
34 Write attenuation constants
for primary process variable
Access = Write
Byte 0-3: attenuation constant of the primary
process variable "volume flow" in seconds
= Current output damping
Displays the current attenuation constant in the
device:
Byte 0-3: attenuation constant in seconds
35 Write measuring range of the
primary process variable
Access = Write
Write the desired measuring range:
– Byte 0: HART unit ID for the primary process
variable
– Byte 1-4: end of measuring range, value for
20 mA
– Byte 5-8: start of measuring range, value for
4 mA
Factory setting:
Primary process variable = Volume flow
!
Note!
• The start of measuring range (4 mA) must
correspond to zero flow.
• If the HART unit ID does not suit the process
variable, the device will continue with the last
valid unit.
The measuring range currently set is shown as
the response:
– Byte 0: HART unit ID for the set measuring
range of the primary process variable
– Byte 1-4: end of measuring range, value for
20 mA
– Bytes 5-8: start of measuring range, value for
4 mA
!
Note!
Manufacturer-specific units are represented
using the HART unit ID “240".
38 Device status reset
"configuration changed"
Access = Write
none none
42 Perform device reset
Access = Write
none none
44 Write unit of the primary
process variable
Access = Write
Specify the unit of the primary process variable.
Only units which are suitable for the process
variable are accepted by the device:
Byte 0: HART unit ID
Factory setting:
Primary process variable = Volume flow
!
Note!
• If the written HART unit ID does not suit the
process variable, the device will continue
with the last valid unit.
• If you change the unit of the primary process
variable, this has a direct impact on the
system units.
The current unit ID of the primary process
variable is displayed as a response:
Byte 0: HART unit ID
!
Note!
Manufacturer-specific units are represented
using the HART unit ID “240".
48 Read extended device status
Access = Read
none The current device status is displayed in
extended form as the response:
Encoding: see table on Page 59
Command No.
HART command / Access type Command data
(numeric data in decimal form)
Response data
(numeric data in decimal form)