Emerson Rosemount 705, Справочное руководство

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Mapping of Alert Messages in the HART
®
Command 48 Additional Status
May 2017
Reference Manual
00809-0200-4705, Rev AB
63
Mapping of Alert Messages in the HART
®
Command 48 Additional Status
Appendix D Mapping of Alert Messages in the
HART
®
Command 48 Additional
Status
This appendix outlines the most important alerts in the HART command 48 Additional Status Field for
the Rosemount
™
705 Wireless Totalizing Transmitter. The information in this section can be used by
DeltaV
™
for alert monitoring, and in the Smart Wireless Gateway for Additional Status mapping in
Modbus
®
, OPC, etc.
A complete list of Additional Status bits is available in the Smart Wireless Gateway.
Table D-1 to Table D-2 displays the device variable and variable mapping indexes for the Rosemount 705
Transmitter.
Table D-3 to Table D-5 shows a list of the most important alert messages that may be displayed in the
AMS
™
Device Manager and Field Communication together with the location of the Alert in the HART
command 48 Additional Status field.
To view Active Alerts, from the Home screen, go to Service Tools > Active Alerts .
Table D-1. Device Variable Index
Device variable Index
0 Supply voltage
1 Electronics temperature
2 Totalized volume
3 Average flow rate
Table D-2. Default Variable Mapping Index (can be modified)
Variables Index
PV Totalized volume
SV Average flow rate
TV Electronics temperature
QV Supply voltage
Table D-3. Failure Alerts (F:)
Message Additional status
(1)
1. Location of the Alert in the HART command 48 Status field.
Description
Electronics Failure Byte 8 :: Bit 6
A failure has been detected in the device memory
and/or electronics
Configuration Error Byte 2 :: Bit 6
The device has detected a configuration error based
on a change to the device
Radio Failure Byte 1 :: Bit 6
The wireless radio has detected a failure or stopped
communicating
Supply Voltage Failure Byte 6 :: Bit 2
The supply voltage is too low for the device to
broadcast