Endress+Hauser Hart Cerabar PMP71B, Руководство по эксплуатации

Страница: 37 / 84

Cerabar PMP71B HART System integration
Hauser 37
8 System integration
8.1 Overview of device description files
• Manufacturer ID: 17 (0x0011)
• Device type ID: 0x112A
• HART specification: 7.6
• DD files, information and files can be found at:
• www.endress.com
• www.fieldcommgroup.org
8.2 Measured variables via HART protocol
The following measured values are assigned to the device variables at the factory:
Device variable Measured value
Primary variable (PV)
1)
Pressure
2)
Secondary variable (SV) Sensor temperature
Tertiary variable (TV) Electronics temperature
Quaternary variable (QV) Sensor pressure
3)
1) The PV is always applied to the current output.
2) The pressure is the calculated signal after damping and position adjustment.
3) The sensor pressure is the raw sensor signal before damping and position adjustment.
The assignment of the measured values to the device variables can be changed in the
following submenu:
Application → HART output → HART output
In a HART Multidrop loop, only one device may use the analog current value for signal
transmission. For all other devices in the "Loop current mode" parameter , select the
Disable option.
8.2.1 Device variables and measured values
The following codes are assigned to the device variables at the factory:
Device variable Device variable code
Pressure 0
Scaled variable 1
Sensor temperature 2
Sensor pressure 3
Electronics temperature 4
Terminal current 5
Terminal voltage 6
Median of pressure signal 7
Noise of pressure signal 8
Percent of range 244