B.2
Mapping of device variable index numbers
To integrate a device into the host system, it may be necessary to know what each device
variable represents, and what index number it has been assigned to. The variable index
number is an arbitrary number used to uniquely identify each variable supported in the
field device.
displays the device variable and variable mapping indexes for the
Rosemount 648 Wireless.
Table B-3: Device Variable Index
Device variable index
Description
0
Supply Voltage
1
Electronics Temperature
2
Process Temperature
3
Terminal Temperature (for CJC)
244
Percent of Range
Table B-4: Variable Mapping
Process variable
Mapped variable index
PV
2 - Process Temperature
SV
3 - Terminal Temperature
TV
1 - Electronics Temperatrue
QV
0 - Supply Voltage
Reference Manual
Mapping for Non-DD Based Integration with Host Systems
00809-0200-4648
May 2020
Rosemount 648 Wireless
71
Содержание Rosemount 648
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Страница 8: ...Introduction Reference Manual May 2020 00809 0200 4648 8 Rosemount 648 Wireless ...
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Страница 48: ...Commissioning Reference Manual May 2020 00809 0200 4648 48 Rosemount 648 Wireless ...
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