Emerson Rosemount 56, Инструкция по эксплуатации

Страница: 101 / 136

Instruction Manual Section 11: HART Communications
LIQ-MAN-56 April 2017
HART Communications 91
0x1100).
This bit is set if any Device Variable is in an Alarm or Warning State. The host should
identify the Device Variable(s) causing this to be set using the Device Variable Status
indicators.
Bit 3 Critical Power Failures:
This bit will always be cleared on the 56.
11.4.3 Additional Transmitter Status (Command 48)
Additional Transmitter Status provides diagnostic status bits specific to the condition of
sensors, sensor boards, and the main board of the 56. Calibration errors and notification of
events, such as calibration in progress and relay activation are also indicated by status bits.
Appendix 2 shows these bits organized according to the main board or applicable sensor board.
11.5 HART Hosts
A HART host can access live measurements, diagnostic messages, and provide a tool for
configuring the measurement and calibrating the 56. Two examples are shown below:
11.5.1 AMS Intelligent Device Manager
The AMS Device Intelligent Device Manager is member of the AMS Suite of asset management
applications, which provides tools for configuration, calibration, diagnosing, and documenting
transmitters and valves. The following AMS windows are examples of these functions:
11.5.2 475 Field Communicator
HART (and Fieldbus) devices can be access in the field using the 475, which provides the
same basic functionality as the AMS Intelligent Device Manager. Asset management
information can be uploaded into the AMS database from the 475 for a common database
for asset management data. The 475 uses a color menu driven display.
11.6 Wireless Communication using the 56
The 56 can communicate by Wireless HART using the Smart Wireless THUM Adaptor and
the 1420 Smart Wireless Gateway. All the information available with the wired device can
FIGURE 11-1 Main Measurement and Overall Status