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2-1
SECTION 2
Common Tasks for Fisher-Rosemount HART
Devices
INTRODUCTION
This section displays HART Communicator menus and describes tasks
common to Fisher-Rosemount HART products.
POWERING UP ONLINE
Powering up online provides direct access to the Online menu. This menu
provides critical data that is continuously updated. To be powered online, the
Communicator must be connected to a 4–20 mA loop.
To power up the Communicator and access a HART compatible device:
1. Be sure the Communicator is connected to a HART compatible device.
See HART Communicator Connections on page 1-2 for information
about proper connections.
2. Power the Communicator by pressing the On/Off key.
NOTE: If a device is found, the HART Communicator displays the Online
menu. If no device is found, the Communicator displays the Main menu. If no
device is found, check the connections, verify the presence of the 250 ohms
load resistance in series in the loop, and retry by selecting ‘Online.’ To poll
multiple devices in the loop, refer to Polling Menu on page 1-23. For help
on communication problems, see Appendix D.