Baker Hughes Panametrics AquaTrans AT600, Руководство пользователя

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Chapter 6. Communication
86 AquaTrans™ AT600 User’s manual
6.2 HART
6.2.1 Device Identification
The AT600 flow meter supports the HART communication protocol, for which the manufacturer ID is 0x9D (157 Dec)
and the device type code is 0x9D73 (127 Dec).
6.2.2 Commands
6.2.2.1 Universal commands
Table 8: Universal commands for HART
Command Function Description
0 Read unique identifier Returns identity information about the meter including:
the device type, revision levels, and device ID.
1 Read primary variable Returns the primary variable value along with its unit code
2 Read loop current and percent of range Reads the loop current and its associated percent of
range.
3 Read dynamic variables and loop current Reads the loop current and up to four predefined dynamic
variables. The dynamic variables and associated units are
defined via commands 51 and 53.
6 Write polling address Writes the polling address and the loop current mode to
the field device.
7 Read loop configuration Read polling address and the loop current mode.
8 Read dynamic variable upification Reads the upification associated with the dynamic
variable.
9 Read device variables with status Request the value and status of up to eight device device
or dynamic variables.
11 Read unique identifier associated with tag If the specified tag matches that of the meter, it responds
with the command 0 response.
12 Read message Reads the message contained within the meter.
13 Read tag, descriptor, date Reads the tag, descriptor, and date contained within the
meter.
14 Read primary variable transducer
information
Reads the transducer (meter) serial number,
limits/minimum span units code, upper transducer limit,
lower transducer limit, and minimum span for the primary
variable transducer.
15 Read device information Reads the alarm selection code, transfer function code,
range values units code upper range value, primary
variable lower range value, damping value, write protect
code, and private label distributor code.
16 Read final assembly number Reads the final assembly number associated with the
meter.
17 Write message Write the message into the meter.
18 Write tag, descriptor, date Write the tag, descriptor, and date code into the meter.
19 Write final assembly number Write the final assembly number into the meter.
20 Read long tag Read the 32-byte long tag.
21 Read unique identifier associated with
long tag
Read unique identifier associated with long tag
22 Write long tag Write the 32-byte long tag
38 Reset configuration changed flag Resets the configuration changed indicator (device status
byte bit 6).
48 Read additional device status Returns meter status information not included in the
response code or device status byte.